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1
US2021091725A1
LIMITING CIRCUIT AND ELECTRONIC DEVICE
Publication/Patent Number: US2021091725A1 Publication Date: 2021-03-25 Application Number: 17/048,445 Filing Date: 2019-02-21 Inventor: Luo, Dan   Misul, Koichi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H03F1/52 Abstract: In a limiting circuit that limits an output voltage of an operational amplifier, the signal quality of the output voltage is improved. The limiting circuit includes a short-circuit transistor and a gate voltage supply unit. In the limiting circuit, the short-circuit transistor short-circuits a path between an input terminal and an output terminal of the operational amplifier in a case where a voltage between the input terminal of the operational amplifier and the gate is higher than a predetermined threshold voltage. Furthermore, in the limiting circuit, the gate voltage supply unit supplies a voltage to the gate, the voltage depending on the threshold voltage and the output voltage of the output terminal.
2
US10934475B2
Surfactant for enhanced oil recovery
Publication/Patent Number: US10934475B2 Publication Date: 2021-03-02 Application Number: 15/744,924 Filing Date: 2016-07-15 Inventor: Ren, Zhifeng   Wang, Feng   Luo, Dan   Assignee: UNIVERSITY OF HOUSTON SYSTEM   IPC: C09K8/584 Abstract: A Janus graphene nanosheet (JGN) surfactant formed from a two-dimensional graphene oxide sheet and functionalized to produce an amphiphilic graphene nanosheet. The JGN may be a component of a nanofluid utilized in nanofluid flooding for oil recovery. The JGN may also be used as solid surfactants to form emulsions for oil recovery.
3
US2021059994A1
USE OF I-BRD9 OR DERIVATIVES THEREOF IN PREPARING ANTI-EPILEPTIC DRUGS
Publication/Patent Number: US2021059994A1 Publication Date: 2021-03-04 Application Number: 16/961,267 Filing Date: 2019-09-25 Inventor: Cao, Wenyu   Xu, Yang   Luo, Dan   Wan, Wei   He, Jie   Zhong, Xiaolin   Chen, Xi   Liu, Zhenghai   Zeng, Jiayu   Wang, Zhen   Yang, Hui   Niu, Lei   Luo, Shishi   Assignee: UNIVERSITY OF SOUTH CHINA   IPC: A61K31/4365 Abstract: Provided are methods of using bromodomain-containing protein 9 inhibitor (I-BRD9) or a derivative thereof in preparation of anti-epileptic drugs. The I-BRD9 has significant effects on anticonvulsion, prolonging of convulsion latency, and reduction of seizure level, and can be used for preparing anti-epileptic drug preparations.
4
US2020358148A1
METHODS AND GREEN REAGENTS FOR RECYCLING OF LITHIUM-ION BATTERIES
Publication/Patent Number: US2020358148A1 Publication Date: 2020-11-12 Application Number: 16/860,104 Filing Date: 2020-04-28 Inventor: Dong, Chang   Luo, Dan   Assignee: Dong, Chang   Luo, Dan   IPC: H01M10/54 Abstract: The present invention states a method of producing new cathode materials for lithium ion batteries by recycling metals from depleted lithium-ion batteries using green reagents, and a method of deriving green reagents from agricultural products. The green reagents are used to replace corrosive acids that are used in the recycling process of depleted lithium-ion batteries. Metal ions, such as nickel, cobalt, manganese, and lithium are recovered as precipitates from the depleted lithium-ion batteries which can further be sintered to produce lithium-containing transition metal oxides that can be used as new cathode material for lithium-ion batteries.
5
US2020231445A1
A METHOD OF PREPARING A STABLE NANOFLUID OF AMPHIPHILIC JANUS NANOSHEETS IN SALT WATER
Publication/Patent Number: US2020231445A1 Publication Date: 2020-07-23 Application Number: 16/651,152 Filing Date: 2018-09-27 Inventor: Ren, Zhifeng   Luo, Dan   Wang, Feng   Assignee: University of Houston System   IPC: C01B32/198 Abstract: A stable water based nanofluid of graphene-based amphiphilic Janus nanosheets, where the nanofluid has a high salt-content while retaining the interfacial activities of the nanosheets. Such a nanofluid of amphiphilic Janus nanosheets may be used for enhanced oil recovery.
6
US2020377675A1
A METHOD TO SYNTHESIZE GRAPHENE-BASED AMPHIPHILIC JANUS NANOSHEETS
Publication/Patent Number: US2020377675A1 Publication Date: 2020-12-03 Application Number: 16/636,628 Filing Date: 2018-07-27 Inventor: Ren, Zhifeng   Luo, Dan   Wang, Feng   Assignee: University of Houston System   IPC: C08J3/215 Abstract: A facile and scalable method to prepare graphene-based amphiphilic Janus nanosheets with high efficiency utilizing the formation of hydrogen bonding to immobilize graphene oxide (GO) on the surfaces of starch microspheres. After selective functionalization of the exposed surface using alkylamine, amphiphilic Janus nanosheets (AJN) were obtained by releasing the nanosheets from the starch microspheres.
7
US2020326891A1
METHOD AND APPARATUS FOR MANAGING STORAGE DEVICE IN STORAGE SYSTEM
Publication/Patent Number: US2020326891A1 Publication Date: 2020-10-15 Application Number: 16/912,377 Filing Date: 2020-06-25 Inventor: Luo, Dan   Liu, Yu   Zhang, Wei   Mao, Wei   Assignee: HUAWEI TECHNOLOGIES CO., LTD.   IPC: G06F3/06 Abstract: In a method for accessing a storage system, a client in the storage system identifies a logical address of a storage device, and queries a management server regarding a mapping between the storage device and a start address of a submission queue (SQ) in the memory of the storage node. The client then sends an access request including the logical address of the storage device directed to the start address of the SQ to a network interface card NIC of the storage node. The NIC receives and sends the access request to the start address of the SQ in the memory. The storage device obtains the access request from the start address of the SQ and executes the access request.
8
US2020320014A1
Method and Apparatus for Managing Storage Device in Storage System
Publication/Patent Number: US2020320014A1 Publication Date: 2020-10-08 Application Number: 16/906,832 Filing Date: 2020-06-19 Inventor: Luo, Dan   Liu, Yu   Zhang, Wei   Mao, Wei   Assignee: Huawei Technologies Co., Ltd.   IPC: G06F12/1009 Abstract: In a method for managing a storage device in a storage system, a client may send, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located.
9
US2020285591A1
Method and Apparatus for Accessing Storage System
Publication/Patent Number: US2020285591A1 Publication Date: 2020-09-10 Application Number: 16/880,003 Filing Date: 2020-05-21 Inventor: Luo, Dan   Zhang, Wei   Zou, Jiaotong   Assignee: Huawei Technologies Co., Ltd.   IPC: G06F12/1081 Abstract: In a solution for accessing a storage system, a client sends, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located.
10
US10563722B2
Hydraulic bushing
Publication/Patent Number: US10563722B2 Publication Date: 2020-02-18 Application Number: 15/372,933 Filing Date: 2016-12-08 Inventor: Zou, Bo   Luo, Dan   Ding, Xingwu   Bu, Jiling   Zhang, Yaxin   Liu, Jianxun   Gross, Jo   Wang, Tao   Assignee: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY CO., LTD.   IPC: F16F13/14 Abstract: The present invention relates to a hydraulic bushing, including a main spring and a cylindrical outer housing. The main spring comprising: a core shaft; a first rubber body arranged on an outer wall of the core shaft, wherein two liquid chambers diametrically opposite to and spaced from each other are formed on the first rubber body, each liquid chamber extending throughout the first rubber body along an axial direction thereof; and a sleeve mounted on an outer wall of the first rubber body, a groove being formed in an outer wall of the sleeve. The main spring is disposed inside an inner chamber of the outer housing, and a flow channel for connecting the two liquid chambers with each other is formed between the outer housing and the sleeve through the groove.
11
WO2020007004A1
TUNNEL BORING MACHINE, TUNNEL BORING MACHINE CUTTER DISC AND CUTTER REPLACEMENT METHOD
Publication/Patent Number: WO2020007004A1 Publication Date: 2020-01-09 Application Number: 2018124323 Filing Date: 2018-12-27 Inventor: Peng, Zhengyang   Liu, Feixiang   Cheng, Yongliang   Luo, Dan   Xue, Jing   Ji, Zhiyong   Xiong, Chenjun   He, Qiping   Deng, Ruqun   Assignee: CHINA RAILWAY CONSTRUCTION HEAVY INDUSTRY CO., LTD   IPC: E21D9/10 Abstract: Disclosed are a tunnel boring machine cutter disc, a tunnel boring machine comprising the tunnel boring machine cutter disc, and a cutter replacement method applied to the tunnel boring machine cutter disc. The tunnel boring machine cutter disc comprises a cutter disc body; a mounting hole penetrates the cutter disc body; the mounting hole is provided with freezing portions (11), and the freezing portions (11) are connected to a driving device used for driving the freezing portions (11) to extend out of or retract to the cutter disc body; the freezing portions (11) are connected to a freezing pipeline (12) used to provide a freezing medium to inside of the freezing portions (11). In the present tunnel boring machine cutter disc, since the retractable freezing portions (11) are provided, during a cutter replacement or maintenance operation, the freezing portions (11) may perform insertion point freezing on soil at a front end of a tunnel surface to form a freezing separation layer, thereby improving the strength and stability of the soil at the tunnel surface, and providing a safe and convenient operating environment for the cutter replacement operation. At the same time, since the freezing portions (11) extend out of the cutter disc body to perform the freezing operation, the freezing of the steel structure of the cutter disc may be reduced, and the ineffective operation of the breaking of soil of frozen earth may be reduced and decreased.
12
WO2019207928A1
LIMITING CIRCUIT AND ELECTRONIC DEVICE
Publication/Patent Number: WO2019207928A1 Publication Date: 2019-10-31 Application Number: 2019006449 Filing Date: 2019-02-21 Inventor: Luo, Dan   Misui, Koichi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H03G11/00 Abstract: This limiting circuit limits the output voltage of an operational amplifier, thereby improving the quality of an output voltage signal. The limiting circuit is equipped with a short-circuit transistor and a gate voltage supply unit. When the voltage between a gate and an input terminal of the operational amplifier exceeds a prescribed threshold voltage, the short-circuit transistor of this limiting circuit short circuits a path between the input terminal and an output terminal of the operational amplifier. Moreover, the gate voltage supply unit of the limiting circuit supplies a voltage to the gate according to the threshold voltage and the output voltage of the output terminal.
13
WO2019015018A1
FULL-SOLID STATE REFLECTING FILM AND PREPARATION METHOD THEREFOR
Publication/Patent Number: WO2019015018A1 Publication Date: 2019-01-24 Application Number: 2017099009 Filing Date: 2017-08-25 Inventor: Luo, Dan   Li, Yong   Assignee: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA   IPC: G02F1/13 Abstract: Disclosed are a full-solid state reflecting film and a preparation method therefor. The reflecting film comprises: a polymer matrix having a micro-cavity, and a filling medium filled in the micro-cavity; and the micro-cavity in the reflecting film is of a spiral structure. The preparation method for the reflecting film comprises: 1) preparing a first composite layer, containing an alignment layer, on a first substrate; 2) preparing a second composite layer, containing an alignment layer, on a second substrate; 3) preparing a liquid crystal cell by using the first composite layer and the second composite layer; 4) injecting a cholesteric liquid crystal, a photoinitiator and a polymer monomer into the liquid crystal cell; 5) polymerization; 6) using a solvent for soaking and dissolution, and then removing and drying the film material; 7) injecting a filler into the film layer obtained after drying, and curing same to obtain the reflecting film. The reflecting film has the advantages of a full solid-state, being flexible and shapeable, and high reflectivity, and can be completely separated from the substrate. The reflecting film can be widely applied to a series of optical device products.
14
JP2019193139A
LIMITING CIRCUIT AND ELECTRONIC DEVICE
Publication/Patent Number: JP2019193139A Publication Date: 2019-10-31 Application Number: 2018085140 Filing Date: 2018-04-26 Inventor: Luo, Dan   Misui, Koichi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORP   IPC: H03G11/00 Abstract: To improve the quality of an output voltage signal in a limiting circuit that limits the output voltage of an operational amplifier.SOLUTION: An amplifier 200 as a limiting circuit includes short-circuit transistors 211, 212 and a gate voltage supply unit 220. In the limiting circuit, when voltages V, Vbetween gates of the short-circuit transistors and an input terminal of an operational amplifier exceed a predetermined threshold voltage, the short-circuit transistors short circuit a path between the input terminal and an output terminal of the operational amplifier. Moreover, in the limiting circuit, the gate voltage supply unit supplies a voltage to the gates according to the threshold voltage and the output voltage of the output terminal.SELECTED DRAWING: Figure 2
15
WO2019127018A1
MEMORY SYSTEM ACCESS METHOD AND DEVICE
Publication/Patent Number: WO2019127018A1 Publication Date: 2019-07-04 Application Number: 2017118645 Filing Date: 2017-12-26 Inventor: Zou, Jiaotong   Zhang, Wei   Luo, Dan   Assignee: HUAWEI TECHNOLOGIES CO., LTD.   IPC: H04L29/08 Abstract: The solution discloses a memory system access method. A client side sends, according to an initial address of a queue of the NVMe memory device pointed by an acquired access request and a logic address of the NVMe memory device pointed by the access request, a remote direct memory access command to a memory node where an NVMe memory device is disposed . Therefore, the performance of the NVMe memory device is fully exerted and the write performance of the memory system is improved.
16
EP3525080A1
MEMORY SYSTEM ACCESS METHOD AND DEVICE
Publication/Patent Number: EP3525080A1 Publication Date: 2019-08-14 Application Number: 17898345.8 Filing Date: 2017-12-26 Inventor: Luo, Dan   Zhang, Wei   Zou, Jiaotong   Assignee: Huawei Technologies Co., Ltd.   IPC: G06F3/06 Abstract: This solution discloses a method for accessing a storage system. A client sends, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located. Therefore, performance of the NVMe storage device is brought into full play, and write performance of the storage system is improved.
17
EP3531666A1
MANAGEMENT METHOD AND APPARATUS FOR STORAGE DEVICE IN STORAGE SYSTEM
Publication/Patent Number: EP3531666A1 Publication Date: 2019-08-28 Application Number: 17898343.3 Filing Date: 2017-12-26 Inventor: Luo, Dan   Liu, Yu   Zhang, Wei   Mao, Wei   Assignee: Huawei Technologies Co., Ltd.   IPC: H04L29/08 Abstract: This solution discloses a method for managing a storage device in a storage system. A client may send, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located. Therefore, performance of the NVMe storage device is brought into full play, and write performance of the storage system is improved.
18
US201916943A1
SURFACTANT FOR ENHANCED OIL RECOVERY
Publication/Patent Number: US201916943A1 Publication Date: 2019-01-17 Application Number: 20/161,574 Filing Date: 2016-07-15 Inventor: Ren, Zhifeng   Wang, Feng   Luo, Dan   Assignee: University of Houston System   IPC: C09K8/584 Abstract: A Janus graphene nanosheet (JGN) surfactant formed from a two-dimensional graphene oxide sheet and functionalized to produce an amphiphilic graphene nanosheet. The JGN may be a component of a nanofluid utilized in nanofluid flooding for oil recovery. The JGN may also be used as solid surfactants to form emulsions for oil recovery.
19
WO2019027817A1
A METHOD TO SYNTHESIZE GRAPHENE-BASED AMPHIPHILIC JANUS NANOSHEETS
Publication/Patent Number: WO2019027817A1 Publication Date: 2019-02-07 Application Number: 2018044013 Filing Date: 2018-07-27 Inventor: Wang, Feng   Ren, Zhifeng   Luo, Dan   Assignee: UNIVERSITY OF HOUSTON SYSTEM   IPC: C01B32/182 Abstract: A facile and scalable method to prepare graphene-based amphiphilic Janus nanosheets with high efficiency utilizing the formation of hydrogen bonding to immobilize graphene oxide (GO) on the surfaces of starch microspheres. After selective functionalization of the exposed surface using alkylamine, amphiphilic Janus nanosheets (AJN) were obtained by releasing the nanosheets from the starch microspheres.
20
WO2019127021A1
MANAGEMENT METHOD AND APPARATUS FOR STORAGE DEVICE IN STORAGE SYSTEM
Publication/Patent Number: WO2019127021A1 Publication Date: 2019-07-04 Application Number: 2017118650 Filing Date: 2017-12-26 Inventor: Zhang, Wei   Mao, Wei   Liu, Yu   Luo, Dan   Assignee: HUAWEI TECHNOLOGIES CO., LTD.   IPC: H04L29/08 Abstract: A management method for a storage device in a storage system. A client may send, according to the start address of a queue of a NVMe storage device pointed to by an acquired access request and the logical address of the NVMe storage device pointed to by the access request, a remote direct memory access command to a storage node where the NVMe storage device is located, thereby fully developing the performance of the NVMe storage device and improving the writing performance of the storage system.
Total 6 pages