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1 US9864284B2
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
Publication/Patent Number: US9864284B2 Publication Date: 2018-01-09 Application Number: 15/054,009 Filing Date: 2016-02-25 Inventor: Kawahara, Masataka   Tanaka, Masato   Miura, Daisuke   Anezaki, Takashi   Maruyama, Akihiro   Sugiyama, Kazumichi   Tomono, Hiroyuki   Shida, Kazuhisa   Ito, Yota   Yamaai, Tatsuya   Uesugi, Hirotoshi   Hinata, Shoma   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/047 Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B. An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
2 EP3062153B1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: EP3062153B1 Publication Date: 2018-09-26 Application Number: 16156831.6 Filing Date: 2016-02-23 Inventor: Kawahara, Masataka   Uesugi, Hirotoshi   Maruyama, Akihiro   Kumoi, Hirofumi   Tanaka, Masato   Tomono, Hiroyuki   Hinata, Shoma   Ito, Yota   Miura, Daisuke   Anezaki, Takashi   Yamaai, Tatsuya   Sugiyama, Kazumichi   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/05 Abstract: An electrophotographic photosensitive member (1) has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure). An electrophotographic photosensitive member (1) has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
3 EP2471383B1
TASTE IMPROVER FOR HIGH INTENSITY SWEETENER
Publication/Patent Number: EP2471383B1 Publication Date: 2017-05-31 Application Number: 10811527.0 Filing Date: 2010-08-27 Inventor: Miyazawa, Toshio   Asai, Yasutaka   Yamaguchi, Hirotoshi   Uesugi, Takashi   Muranishi, Shuichi   Assignee: Ogawa & Co., Ltd.   IPC: A23L2/60 Abstract: A taste improver which is capable of effectively suppressing unpleasant bitter taste, harsh taste, and astringent taste peculiar to high intensity sweeteners without changing original flavor and taste of food and of reproducing taste intensity and a flavor profile by using the high intensity sweeteners, which are equal to those attained by using sugars such as sucrose. It is possible to improve the unpleasant aftertastes of a high intensity sweetener and to reproduce taste intensity and a flavor profile which are equal to those attained by using sugars such as sucrose by adding the taste improver for high intensity sweetener, characterized by containing (A), (B), and (C), and further (D) and/or (E), to a beverage or food containing the high intensity sweetener: (A) spilanthol, or an extract or essential oil of a plant containing spilanthol; (B) quinic acid or a composition containing quinic acid; (C) vanilla polyphenol or a composition containing vanilla polyphenol; (D) green tea polyphenol or a composition containing green tea polyphenol; and (E) rosaceous plant polyphenol or a composition containing rosaceous plant polyphenol. A taste improver which is capable of effectively suppressing unpleasant bitter taste, harsh taste, and astringent taste peculiar to high intensity sweeteners without changing original flavor and taste of food and of reproducing taste intensity and a flavor profile by using the ...More ...Less
4 EP1983375B1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MATERIAL, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC DEVICDE
Publication/Patent Number: EP1983375B1 Publication Date: 2017-09-27 Application Number: 07707990.3 Filing Date: 2007-01-30 Inventor: Uematsu, Hiroki   Teramoto, Kyoichi   Ochi, Atsushi   Koganei, Akio   Shimada, Akira   Sumida, Takayuki   Anezaki, Takashi   Kikuchi, Toshihiro   Ogaki, Harunobu   Uesugi, Hirotoshi   Maruyama, Akio   Kawahara, Masataka   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/00 Abstract: To provide an electrophotographic photosensitive member which keeps the member surface from being scratched in a size causative of faulty images, without relying on improving mechanical strength and can form good images over a long period of time, and a process cartridge and an electrophotographic apparatus, having the photosensitive member. In an electrophotographic photosensitive member having a support and a photosensitive layer, the photosensitive member has a surface having a plurality of independent, depressed portions each having a major-axis diameter of 0.1 µm to 10 µm, a minor-axis diameter of 0.1 µm to 10 µm and a deepest-part to opening distance of 0.1 µm to 10 µm; and, where the surface is equally divided into 4 regions in the rotational direction, which are then equally divided into 25 regions in the direction falling at right angles with the rotational direction, to obtain 100-spot regions A in total, and, in each thereof, square regions B of 50 µm each per side one side of which is parallel to the rotational direction are provided and the regions B are each equally divided into 500 zones by straight lines parallel to the rotational direction, 400 to 499 lines among the straight lines pass through the depressed portions in each of the regions B. To provide an electrophotographic photosensitive member which keeps the member surface from being scratched in a size causative of faulty images, without relying on improving mechanical strength and can form good images over a long period of time, and a process cartridge and an ...More ...Less
5 US9753385B2
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
Publication/Patent Number: US9753385B2 Publication Date: 2017-09-05 Application Number: 15/054,017 Filing Date: 2016-02-25 Inventor: Ito, Yota   Miura, Daisuke   Hinata, Shoma   Tomono, Hiroyuki   Anezaki, Takashi   Yamaai, Tatsuya   Sugiyama, Kazumichi   Kawahara, Masataka   Uesugi, Hirotoshi   Maruyama, Akihiro   Kumoi, Hirofumi   Tanaka, Masato   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/00 Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure). An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
6 EP2397908B1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: EP2397908B1 Publication Date: 2016-04-27 Application Number: 11181407.5 Filing Date: 2007-10-24 Inventor: Uesugi, Hirotoshi   Abe, Yukihiro   Miura, Daisuke   Miki, Nobumichi   Ogaki, Harunobu   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/147 Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties while being prevented from the generation of blade-curling, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member contains a polymer having a specific repetitive structural unit. An electrophotographic photosensitive member having excellent electrophotographic properties while being prevented from the generation of blade-curling, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic ...More ...Less
7 JP2016164651A
ELECTROPHOTOGRAPHIC PHOTORECEPTOR
Publication/Patent Number: JP2016164651A Publication Date: 2016-09-08 Application Number: 2016026328 Filing Date: 2016-02-15 Inventor: Tanaka, Masato   Kawahara, Masataka   Miura, Daisuke   Maruyama, Akihiro   Anezaki, Takashi   Uesugi, Hirotoshi   Tomono, Hiroyuki   Kumoi, Hirofumi   Sugiyama, Kazumichi   Ito, Yota   Hinata, Shoma   Yamaai, Tatsuya   Assignee: CANON INC   IPC: G03G5/05 Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with a high level of an antifogging effect.SOLUTION: An electrophotographic photoreceptor has a support medium and a charge transport layer including a charge transport material in this order. The charge transport layer is a surface layer of the electrophotographic photoreceptor and includes polycarbonate resin having a structure unit selected from a group A and a structure unit selected from a group B.SELECTED DRAWING: None PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with a high level of an antifogging effect.SOLUTION: An electrophotographic photoreceptor has a support medium and a charge transport layer including a charge transport material in this order. The charge ...More ...Less
8 US2016252829A1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: US2016252829A1 Publication Date: 2016-09-01 Application Number: 15/054,009 Filing Date: 2016-02-25 Inventor: Kawahara, Masataka   Uesugi, Hirotoshi   Maruyama, Akihiro   Kumoi, Hirofumi   Tanaka, Masato   Tomono, Hiroyuki   Hinata, Shoma   Ito, Yota   Miura, Daisuke   Anezaki, Takashi   Yamaai, Tatsuya   Sugiyama, Kazumichi   Assignee: CANON KABUSHIKI KAISHA   IPC: G03G15/00 Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure). An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
9 KR20160105343A
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
Publication/Patent Number: KR20160105343A Publication Date: 2016-09-06 Application Number: 20160023390 Filing Date: 2016-02-26 Inventor: Tanaka, Masato   Uesugi, Hirotoshi   Miura, Daisuke   Kawahara, Masataka   Anezaki, Takashi   Kumoi, Hirofumi   Ito, Yota   Maruyama, Akihiro   Tomono, Hiroyuki   Sugiyama, Kazumichi   Yamaai, Tatsuya   Hinata, Shoma   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/147 Abstract: The present invention relates to an electrophotographic photoreceptor
10 DE102016103345A1
ELEKTROFOTOGRAFISCHES FOTOSENSITIVES ELEMENT
Title (English): Photographic photosensory component
Publication/Patent Number: DE102016103345A1 Publication Date: 2016-09-01 Application Number: 102016103345 Filing Date: 2016-02-25 Inventor: Tomono, Hiroyuki   Tanaka, Masato   Maruyama, Akihiro   Uesugi, Hirotoshi   Kawahara, Masataka   Miura, Daisuke   Kumoi, Hirofumi   Anezaki, Takashi   Sugiyama, Kazumichi   Ito, Yota   Hinata, Shoma   Yamaai, Tatsuya   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/06 Abstract: Ein elektrofotografisches fotosensitives Element weist einen Träger
11 JP2016164652A
ELECTROPHOTOGRAPHIC PHOTORECEPTOR
Publication/Patent Number: JP2016164652A Publication Date: 2016-09-08 Application Number: 2016026329 Filing Date: 2016-02-15 Inventor: Tanaka, Masato   Kawahara, Masataka   Miura, Daisuke   Maruyama, Akihiro   Anezaki, Takashi   Uesugi, Hirotoshi   Tomono, Hiroyuki   Kumoi, Hirofumi   Sugiyama, Kazumichi   Ito, Yota   Hinata, Shoma   Yamaai, Tatsuya   Assignee: CANON INC   IPC: G03G5/05 Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with a high level of an antifogging effect.SOLUTION: An electrophotographic photoreceptor has a support medium and a charge transport layer including a charge transport material in this order. The charge transport layer is a surface layer of the electrophotographic photoreceptor and includes polycarbonate resin having a structure unit selected from a group A and a structure unit selected from a group B.SELECTED DRAWING: None PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with a high level of an antifogging effect.SOLUTION: An electrophotographic photoreceptor has a support medium and a charge transport layer including a charge transport material in this order. The charge ...More ...Less
12 US2016252830A1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: US2016252830A1 Publication Date: 2016-09-01 Application Number: 15/054,017 Filing Date: 2016-02-25 Inventor: Ito, Yota   Miura, Daisuke   Hinata, Shoma   Tomono, Hiroyuki   Anezaki, Takashi   Yamaai, Tatsuya   Sugiyama, Kazumichi   Kawahara, Masataka   Uesugi, Hirotoshi   Maruyama, Akihiro   Kumoi, Hirofumi   Tanaka, Masato   Assignee: CANON KABUSHIKI KAISHA   IPC: G03G15/00 Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure). An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
13 EP3062153A1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: EP3062153A1 Publication Date: 2016-08-31 Application Number: 16156831.6 Filing Date: 2016-02-23 Inventor: Kawahara, Masataka   Uesugi, Hirotoshi   Maruyama, Akihiro   Kumoi, Hirofumi   Tanaka, Masato   Tomono, Hiroyuki   Hinata, Shoma   Ito, Yota   Miura, Daisuke   Anezaki, Takashi   Yamaai, Tatsuya   Sugiyama, Kazumichi   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/05 Abstract: An electrophotographic photosensitive member (1) has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure). An electrophotographic photosensitive member (1) has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic ...More ...Less
14 EP2340465B1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Publication/Patent Number: EP2340465B1 Publication Date: 2015-11-11 Application Number: 09816294.4 Filing Date: 2009-09-24 Inventor: Noguchi, Kazunori   Uesugi, Hirotoshi   Okuda, Atsushi   Nishida, Tsutomu   Assignee: Canon Kabushiki Kaisha   IPC: G03G21/10
15 EP1817635B1
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
Publication/Patent Number: EP1817635B1 Publication Date: 2015-07-29 Application Number: 06730730.6 Filing Date: 2006-03-24 Inventor: Nakamura, Kazushige Canon Kabushiki Kaisha   Hirano, Hidetoshi Canon Kabushiki Kaisha   Uesugi, Hirotoshi Canon Kabushiki Kaisha   Kumoi, Hirofumi Canon Kabushiki Kaisha   Takagi, Shinji Canon Kabushiki Kaisha   Abe, Yukihiro Canon Kabushiki Kaisha   Kuno, Junpei Canon Kabushiki Kaisha   Miura, Daisuke Canon Kabushiki Kaisha   Assignee: CANON KABUSHIKI KAISHA   IPC: G03G5/10
16 US8846281B2
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
Publication/Patent Number: US8846281B2 Publication Date: 2014-09-30 Application Number: 13/059,629 Filing Date: 2009-09-24 Inventor: Okuda, Atsushi   Uesugi, Hirotoshi   Noguchi, Kazunori   Nishida, Tsutomu   Assignee: Canon Kabushiki Kaisha   IPC: G03G15/00 Abstract: An electrophotographic photosensitive member having a surface layer which contains a silicon-containing compound in an amount of less than 0.6% by mass based on the whole solid content in the surface layer, where the silicon-containing compound in the surface layer has a siloxane moiety in an amount of 0.01% by mass or more, based on the whole solid content in the surface layer, and its surface has specific depressions. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member. An electrophotographic photosensitive member having a surface layer which contains a silicon-containing compound in an amount of less than 0.6% by mass based on the whole solid content in the surface layer, where the silicon-containing compound in the surface layer has a ...More ...Less
17 EP2340465A4
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
Publication/Patent Number: EP2340465A4 Publication Date: 2014-08-20 Application Number: 09816294 Filing Date: 2009-09-24 Inventor: Noguchi, Kazunori   Uesugi, Hirotoshi   Okuda, Atsushi   Nishida, Tsutomu   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/047
18 EP2133748B1
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC DEVICE
Publication/Patent Number: EP2133748B1 Publication Date: 2014-03-05 Application Number: 08739748.5 Filing Date: 2008-03-27 Inventor: Uesugi, Hirotoshi   Kitamura, Wataru   Okuda, Atsushi   Ogaki, Harunobu   Assignee: Canon Kabushiki Kaisha   IPC: G03G5/147 Abstract: An electrophotographic photosensitive member is provided which maintains excellent smoothness of the surface thereof and improves cleaning performance during long-term repeated use, and which suppresses blade chattering and turn-up, thereby providing good image reproduction, and a process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member are provided. The electrophotographic photosensitive member has a photosensitive layer formed on a support. The electrophotographic photosensitive member has a surface layer containing a silicon-containing compound or a fluorine-containing compound. The surface layer has a plurality of depressed portions which are independent from one another, on the surface. When the major axis diameter of the depressed portion is represented by Rpc and the distance between the deepest part and the opening surface of the depressed portion is represented by Rdv, Rdv is 0.1 µ or more to 10.0 µm or less, and the ratio of the depth (Rdv) to the major axis diameter (Rpc), Rdv/Rpc, is more than 0.3 to 7.0 or less. An electrophotographic photosensitive member is provided which maintains excellent smoothness of the surface thereof and improves cleaning performance during long-term repeated use, and which suppresses blade chattering and turn-up, thereby providing good image reproduction, and ...More ...Less
19 JP5517579B2
METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTORECEPTOR
Publication/Patent Number: JP5517579B2 Publication Date: 2014-06-11 Application Number: 2009270201 Filing Date: 2009-11-27 Inventor: Nagasaka, Hideaki   Noguchi, Kazunori   Miura, Daisuke   Sekido, Kunihiko   Uesugi, Hirotoshi   Assignee: CANON INC   IPC: G03G5/00 Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic photoreceptor
20 AU2010287928C1
Taste improver for high intensity sweetener
Publication/Patent Number: AU2010287928C1 Publication Date: 2014-05-22 Application Number: 2010287928 Filing Date: 2010-08-27 Inventor: Uesugi, Takashi   Miyazawa, Toshio   Asai, Yasutaka   Yamaguchi, Hirotoshi   Muranishi, Shuichi   Assignee: OGAWA & CO., LTD.   IPC: A23L1/00 Abstract: Disclosed is a taste-improving agent for a sweetener having high sweetness to be added to foods or drinks containing sweeteners having high sweetness