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1
EP3239985B1
Publication/Patent Number: EP3239985B1
Publication date: 2018-12-26
Application number: 15902245.8
Filing date: 2015-08-25
Assignee: Hitachi, Ltd.
2
WO2018105296A1
Publication/Patent Number: WO2018105296A1
Publication date: 2018-06-14
Application number: 2017040307
Filing date: 2017-11-08
Assignee: Hitachi, Ltd.
Abstract: A quality management apparatus (1) is characterized by having, in order to realize stable quality management: an input device to which is inputted data relating to operation conditions, etc., of devices (21)-(26) in a production system (20) for producing a product; a calculation unit that substitutes values of the operation conditions for a pre-calculated correlation expression and calculates a value derived from the correlation expression; a determination unit that determines whether the quality of a workpiece is good in each step on the basis of the result of the calculation executed by the calculation unit. The quality management apparatus (1) calculates appropriate values of the operation conditions when the result of the determination shows that the quality is 'not good', and sets the values in the devices (21)-(26). A quality management apparatus (1) is characterized by having, in order to realize stable quality management: an input device to which is inputted data relating to operation conditions, etc., of devices (21)-(26) in a production system (20) for producing a product; a calculation ...more ...less
3
WO2018003559A1
Publication/Patent Number: WO2018003559A1
Publication date: 2018-01-04
Application number: 2017022449
Filing date: 2017-06-19
Abstract: An objective of the present invention is to provide a fuel injection valve with which the amount of heat applied to a welded section between a valve closing body and a rod can be reduced. In order to do so
4
US2018090794A1
Publication/Patent Number: US2018090794A1
Publication date: 2018-03-29
Application number: 20/171,546
Filing date: 2017-03-16
Assignee: Hitachi, Ltd.
Abstract: A secondary battery is disclosed. The secondary battery has a bipolar electrode, an electrolyte layer, and a porous insulator. The bipolar layer includes a positive electrode layer formed on one surface of a collector foil and a negative electrode formed on the other surface of the collector foil. The electrolyte layer is famed at least on a surface of at least one of the positive electrode layer and the negative electrode layer. The porous insulator is formed to a lateral surface of at least one of the positive electrode layer, the negative electrode layer, and the electrolyte layer. The electrolyte layer is laminated by at least one layer relative to the bipolar electrode to configure a bipolar battery. The porous insulator also includes an inorganic particle and a reactive agent for lowering a fluidity of the liquid electrolyte bleeding from the electrolyte layer. A secondary battery is disclosed. The secondary battery has a bipolar electrode, an electrolyte layer, and a porous insulator. The bipolar layer includes a positive electrode layer formed on one surface of a collector foil and a negative electrode formed on the other surface of ...more ...less
5
US20170301414A1
Publication/Patent Number: US20170301414A1
Publication date: 2017-10-19
Application number: 15/511,663
Filing date: 2015-08-25
Assignee: Hitachi, Ltd.
Abstract: Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material is used. A fuel rod 10a for light water reactors includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same or similar material to the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same or similar material to the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21. Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material ...more ...less
6
EP3239985A1
Publication/Patent Number: EP3239985A1
Publication date: 2017-11-01
Application number: 15902245.8
Filing date: 2015-08-25
Assignee: Hitachi, Ltd.
Abstract: Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material is used. A fuel rod 10a for light water reactors includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same or similar material to the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same or similar material to the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21. Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material ...more ...less
7
WO2017033276A1
Publication/Patent Number: WO2017033276A1
Publication date: 2017-03-02
Application number: 2015073816
Filing date: 2015-08-25
Assignee: Hitachi, Ltd.
Abstract: Provided are a fuel assembly and a light-water-reactor fuel rod which
8
JP6157967B2
Publication/Patent Number: JP6157967B2
Publication date: 2017-07-05
Application number: 2013153802
Filing date: 2013-07-24
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery device capable of
9
JP2016178051A
Publication/Patent Number: JP2016178051A
Publication date: 2016-10-06
Application number: 2015058913
Filing date: 2015-03-23
Assignee: HITACHI LTD
Abstract: PROBLEM TO BE SOLVED: To provide a lithium ion secondary battery which never reduces in capacity
10
JP2016181323A
Publication/Patent Number: JP2016181323A
Publication date: 2016-10-13
Application number: 2013168174
Filing date: 2013-08-13
Abstract: PROBLEM TO BE SOLVED: To provide: a separator superior in safety; and an electrochemical device which has the separator and is superior in safety.SOLUTION: A separator for an electrochemical device comprises: a fine porous first separator layer 10 which mainly includes a thermoplastic resin PROBLEM TO BE SOLVED: To provide: a separator superior in safety; and an electrochemical device which has the separator and is superior in safety.SOLUTION: A separator for an electrochemical device comprises: a fine porous first separator layer 10 which mainly includes a ...more ...less
11
JP2016181324A
Publication/Patent Number: JP2016181324A
Publication date: 2016-10-13
Application number: 2013168724
Filing date: 2013-08-14
Abstract: PROBLEM TO BE SOLVED: To provide: an electrochemical device superior in safety; and a separator which enables the formation of the electrochemical device.SOLUTION: A separator for an electrochemical device according to the present invention comprises: a fine porous first separator layer 10 which has a multilayer structure PROBLEM TO BE SOLVED: To provide: an electrochemical device superior in safety; and a separator which enables the formation of the electrochemical device.SOLUTION: A separator for an electrochemical device according to the present invention comprises: a fine porous first ...more ...less
12
WO2016194444A1
Publication/Patent Number: WO2016194444A1
Publication date: 2016-12-08
Application number: 2016059261
Filing date: 2016-03-23
Assignee: HITACHI, LTD.
Abstract: In a silicon carbide ceramic assembly formed by bonding multiple substrates including a silicon carbide ceramic substrate
13
US20160268608A1
Publication/Patent Number: US20160268608A1
Publication date: 2016-09-15
Application number: 14/982,321
Filing date: 2015-12-29
Assignee: HITACHI, LTD.
Abstract: A lithium secondary battery having a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode is constituted by a positive electrode mixture layer containing a positive electrode active material, a binder, and a conductive agent being formed on a positive electrode collector, the negative electrode is constituted by a negative electrode mixture layer containing a negative electrode active material, the binder, and the conductive agent being formed on a negative electrode collector, and the conductive agent contained in both of the positive electrode mixture layer and the negative electrode mixture layer is a fibrous conductive agent or a mixture of the fibrous conductive agent and a particulate conductive agent and an aspect ratio of the fibrous conductive agent is 20 or more. A lithium secondary battery having a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode is constituted by a positive electrode mixture layer containing a positive electrode active material, a binder, and a conductive agent being formed ...more ...less
14
JP2016131123A
Publication/Patent Number: JP2016131123A
Publication date: 2016-07-21
Application number: 2015005311
Filing date: 2015-01-14
Assignee: HITACHI LTD
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery superior in output characteristic.SOLUTION: A lithium secondary battery 1 comprises a positive electrode 10
15
JP2015026449A
Publication/Patent Number: JP2015026449A
Publication date: 2015-02-05
Application number: 2013153802
Filing date: 2013-07-24
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery device capable of
16
WO2015022862A1
Publication/Patent Number: WO2015022862A1
Publication date: 2015-02-19
Application number: 2014070105
Filing date: 2014-07-30
Abstract: This separator for electrochemical devices is characterized by being provided with: a microporous first separator layer which is mainly formed of a thermoplastic resin and shuts down at a predetermined temperature; a microporous second separator layer which has heat resistance; and a microporous third separator layer which contains a low-melting-point material that melts at a lower temperature than the thermoplastic resin of the first separator layer This separator for electrochemical devices is characterized by being provided with: a microporous first separator layer which is mainly formed of a thermoplastic resin and shuts down at a predetermined temperature; a microporous second separator layer which has heat resistance; ...more ...less
17
JP2014049269A
Publication/Patent Number: JP2014049269A
Publication date: 2014-03-17
Application number: 2012190823
Filing date: 2012-08-31
Assignee: HITACHI LTD
Abstract: PROBLEM TO BE SOLVED: To provide a fuel cell stack having excellent power generation efficiency and reliability and capable of making a fastening load more uniform in the stack plane.SOLUTION: In a fuel cell stack configured by laminating a plurality of membrane/electrode assemblies and separators PROBLEM TO BE SOLVED: To provide a fuel cell stack having excellent power generation efficiency and reliability and capable of making a fastening load more uniform in the stack plane.SOLUTION: In a fuel cell stack configured by laminating a plurality of membrane/electrode ...more ...less
18
US20140093792A1
Publication/Patent Number: US20140093792A1
Publication date: 2014-04-03
Application number: 13/957,952
Filing date: 2013-08-02
Assignee: Hitachi, Ltd.
Abstract: A solid polymer electrolyte membrane is provided that is inexpensive, and is excellent in the ionic conductivity characteristics, the methanol crossover characteristics and the mechanical characteristics. The solid polymer electrolyte membrane contains a block copolymer A containing a hydrophilic segment having an ion exchange group and a hydrophobic segment, and a block copolymer B containing a hydrophilic segment having an ion exchange group and a hydrophobic segment and having a smaller ion exchange capacity than the block copolymer A, and has a structure where a region A having the block copolymer A agglomerated therein is dispersed in a matrix constituted by a region B having the block copolymer B agglomerated therein, with a microscopic phase-separated structure having a period of from 10 to 100 nm being formed in the region A and the region B. A solid polymer electrolyte membrane is provided that is inexpensive, and is excellent in the ionic conductivity characteristics, the methanol crossover characteristics and the mechanical characteristics. The solid polymer electrolyte membrane contains a block copolymer A ...more ...less
19
JP2014071971A
Publication/Patent Number: JP2014071971A
Publication date: 2014-04-21
Application number: 2012215468
Filing date: 2012-09-28
Assignee: HITACHI LTD
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive solid polymer electrolyte membrane having excellent ion conduction characteristics
20
WO2014132333A1
Publication/Patent Number: WO2014132333A1
Publication date: 2014-09-04
Application number: 2013054931
Filing date: 2013-02-26
Assignee: Hitachi, Ltd.
Abstract: An all-solid-state lithium-ion secondary battery comprises positive and negative electrodes capable of absorbing and releasing lithium ions and a solid electrolyte layer provided sandwiched between the positive and negative electrodes. In the all-solid-state lithium-ion secondary battery An all-solid-state lithium-ion secondary battery comprises positive and negative electrodes capable of absorbing and releasing lithium ions and a solid electrolyte layer provided sandwiched between the positive and negative electrodes. In the all-solid-state lithium-ion ...more ...less