Patents by Inventor Yuki KATOH
Yuki KATOH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240142676Abstract: There is provided a compound represented by General Formula (I), a composition containing the compound represented by General Formula (I), a cured product, an optically anisotropic body, an optical element, and a light guide element. P1 and P2 each independently represent a hydrogen atom, —CN, —NCS, or a polymerizable group. However, at least one of P1 or P2 represents a polymerizable group. Sp1 and Sp2 each independently represent a specific group. A1, A2, A3, and A4 each independently represent an aromatic hydrocarbon ring group or aromatic heterocyclic group which may have a specific substituent. Z1 and Z2 each independently represent a specific linking group or a single bond. B1 represents a group represented by a specific formula. n1 and n2 each independently represent an integer of 0 to 2.Type: ApplicationFiled: December 21, 2023Publication date: May 2, 2024Applicant: FUJIFILM CorporationInventors: Yuki FUKUSHIMA, Megumi OKUBO, Keisuke KODAMA, Shunya KATOH, Kiyoshi TAKEUCHI
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Patent number: 11966008Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.Type: GrantFiled: August 1, 2022Date of Patent: April 23, 2024Assignee: FUJIFILM CorporationInventors: Kazushige Nakagawa, Hideyuki Nishikawa, Masato Nakao, Shunya Katoh, Hiroyuki Hagio, Yutaka Nozoe, Kunihiro Kasezawa, Yuki Nakamura
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Patent number: 11962002Abstract: The present disclosure concerns lithium zirconium phosphate (LZP) chemical oxides for coated cathode active materials, which are useful in cathodes (i.e., positive electrodes) of rechargeable lithium-batteries for reversibly storing lithium ions (Li+).Type: GrantFiled: September 7, 2023Date of Patent: April 16, 2024Assignee: QuantumScape Battery, Inc.Inventors: Cheng-Chieh Chao, Sarah Chavez, Hyeseung Chung, Seitaro Ito, Yuki Katoh, Konstantin Lokshin, Akinari Ohash, Jessa Silver, Yaosen Tian, Virgil Xu, Zhenfeng Yu
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Patent number: 11916190Abstract: A method for producing a solid electrolyte for an all-solid state battery, the solid electrolyte having the following chemical formula XM2(PS4)3, where X is lithium (Li), sodium (Na), silver (Ag) or magnesium (Mg0,5) and M is titanium (Ti), zirconium (Zr), germanium (Ge), silicon (Si), tin (Sn) or a mixture of X and aluminium (X+Al) and the method including: mixing powders so as to obtain a powder mixture; pressing a component with powder mixture; and sintering component for a period of time equal to or greater than 100 hours so as to obtain the solid electrolyte. The solid electrolyte exhibits the peaks in positions of 2?=13.64° (±1°), 13.76° (±1°), 14.72° (±1°), 15.36° (±1°), 15.90° (±1°), 16.48° (±1°), 17.42° (±1°), 17.56° (±1°), 18.58° (±1°), and 22.18° (±1°) in a X-ray diffraction measurement using CuK? line. The disclosure is also related to a method of producing a solid electrolyte.Type: GrantFiled: March 26, 2018Date of Patent: February 27, 2024Assignee: TOYOTA MOTOR EUROPEInventors: Yuki Katoh, Geoffroy Hautier, Davide Di Stefano, Yaroslav Filinchuk
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Patent number: 11874143Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.Type: GrantFiled: June 13, 2022Date of Patent: January 16, 2024Assignee: HARMONIC DRIVE SYSTEMS INC.Inventors: Brian Coyne, Yuki Katoh
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Publication number: 20230420662Abstract: The present disclosure concerns lithium zirconium phosphate (LZP) chemical oxides for coated cathode active materials, which are useful in cathodes (i.e., positive electrodes) of rechargeable lithium-batteries for reversibly storing lithium ions (Li+).Type: ApplicationFiled: September 7, 2023Publication date: December 28, 2023Inventors: Cheng-Chieh CHAO, Sarah CHAVEZ, Hyeseung CHUNG, Seitaro ITO, Yuki KATOH, LOKSHIN Konstantin, Akinari OHASH, Jessa SILVER, Yaosen TIAN, Virgil XU, Zhenfeng YU
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Publication number: 20230343954Abstract: Provided herein are new processes for coating a cathode active material with a solution that includes lithium and optionally boron. Also provided herein are new cathode active materials having a coating which includes lithium carbonate and lithium borate. Also provided herein are new cathode active materials having one or two coating thereupon which increase the stability of the cathode active material at high voltage. In some examples, one of the coatings is LixZryOz, wherein 0?x?1.6, 0.2?y?1.0, and 2?z?1.2; LixZryOz, wherein 0.6?x?1.5, 0.5?y?1.4, and 2.0?z?3.7; or LixZry(PO4)z, wherein 0.05?x?1.5, 1?y?3, and 2.0?z?4.0.Type: ApplicationFiled: September 8, 2021Publication date: October 26, 2023Inventors: Zhenfeng YU, Virgil XU, Yaosen TIAN, Yuki KATOH, Cheng-Chieh CHAO
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Publication number: 20220381549Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.Type: ApplicationFiled: June 13, 2022Publication date: December 1, 2022Applicant: HARMONIC DRIVE SYSTEMS INC.Inventors: Brian COYNE, Yuki KATOH
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Publication number: 20220285728Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte with which an electrode having excellent ion transport efficiency can be obtained. The present disclosure achieves the object by providing a sulfide solid electrolyte comprising: a Li element, a P element, and a S element; wherein a tetrahydrofuran is also included; and BET specific surface area is 8.3 m2/g or more.Type: ApplicationFiled: May 26, 2022Publication date: September 8, 2022Inventors: Hikaru SUGANUMA, Hanae SHIRATORI, Yuki KATOH
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Patent number: 11411421Abstract: A control device for controlling charging of a rechargeable battery, the control device including a rechargeable dummy cell, a first circuit configured to charge the battery and the dummy cell, and a second circuit configured to measure the open circuit voltage of the dummy cell. The control device is configured to: determine the open circuit voltage of the dummy cell by using the second circuit, and determine the maximum capacity increment of the battery, which is to be charged until full charging, based on the determined open circuit voltage of the dummy cell. Also, a corresponding method of controlling charging of a rechargeable battery.Type: GrantFiled: February 2, 2016Date of Patent: August 9, 2022Assignee: TOYOTA MOTOR EUROPEInventors: Keita Komiyama, Yuki Katoh
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Patent number: 11370670Abstract: The present invention relates to a compound represented by the general formula Li2+2xM1?xZS4, wherein 0.3?x?0.9; wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; and wherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al. The present invention also relates to a method for preparing the material of the present invention, comprising the steps of: (a) providing a mixture of lithium sulfide Li2S, sulfides MS and ZS2, in a stoichiometric ratio ensuring Li2+2xM1?xZS4 to be obtained, wherein M, Z and x are as defined above; (b) pelletizing the mixture prepared in step (a); (c) heating at a maximum plateau temperature. In still another aspect, the present invention relates to a use of the compound of the present invention as a solid electrolyte, in particular in an all solid-state lithium battery.Type: GrantFiled: July 5, 2017Date of Patent: June 28, 2022Assignee: TOYOTA MOTOR EUROPEInventors: Yuki Katoh, Geoffroy Hautier, Anna Miglio
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Patent number: 11359938Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.Type: GrantFiled: June 4, 2021Date of Patent: June 14, 2022Assignee: HARMONIC DRIVE SYSTEMS INC.Inventors: Brian Coyne, Yuki Katoh
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Patent number: 11322967Abstract: A control device for controlling discharging of a rechargeable battery, the control device being configured to: determine the voltage of the battery during discharging of the battery, stop discharging, when the determined voltage falls below a first predetermined lower voltage limit, determine the voltage of the battery after stopping discharging, determine the voltage difference between the first predetermined lower voltage limit and the determined voltage of the battery after stopping discharging, and continue discharging, when the determined voltage difference exceeds a predetermined threshold. A corresponding method controls discharging of a rechargeable battery.Type: GrantFiled: January 29, 2016Date of Patent: May 3, 2022Assignee: TOYOTA MOTOR EUROPEInventors: Keita Komiyama, Yuki Katoh
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Patent number: 11225166Abstract: A control device for controlling discharging of a rechargeable battery, the control device comprising a rechargeable dummy cell, a first circuit configured to discharge the battery and the dummy cell, and a second circuit configured to measure the open circuit voltage of the dummy cell. The control device is configured to: determine the open circuit voltage of the dummy cell by using the second circuit, and determine the maximum capacity decrement of the battery, which is to be discharged until full discharging, based on the determined open circuit voltage of the dummy cell. The invention also refers to a corresponding method of controlling discharging of a rechargeable battery.Type: GrantFiled: February 2, 2016Date of Patent: January 18, 2022Assignee: TOYOTA MOTOR EUROPEInventors: Keita Komiyama, Yuki Katoh
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Patent number: 11161740Abstract: A method of synthesis of lithium titanium thiophosphate LiTi2(PS4)3 including the steps of: (a) providing a mixture of lithium sulfide Li2S, phosphorus sulfide P2S5 and titanium sulfide TiS2; (b) subjecting the mixture prepared in step (a) to a preliminary reaction step through mechanical milling or melt-quenching to produce an intermediate amorphous sulfide mixture; (c) subjecting the mixture prepared in step (b) to a heat treatment step at a maximum plateau temperature of at least 350° C. and less than 500° C.Type: GrantFiled: September 5, 2016Date of Patent: November 2, 2021Assignee: TOYOTA MOTOR EUROPEInventor: Yuki Katoh
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Publication number: 20210310834Abstract: An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.Type: ApplicationFiled: June 4, 2021Publication date: October 7, 2021Applicant: HARMONIC DRIVE SYSTEMS INC.Inventors: Brian COYNE, Yuki KATOH
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Patent number: 11063293Abstract: A compound represented by the general formula Li(Ti1-xZrx)2(PS4)3, wherein 0.01?x?0.25, and found to have high ionic conductivity; a use of the compound as a solid electrolyte, in particular in an all solid-state lithium battery.Type: GrantFiled: October 28, 2016Date of Patent: July 13, 2021Assignee: TOYOTA MOTOR EUROPEInventors: Yuki Katoh, Geoffroy Hautier, Anna Miglio
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Patent number: 11063289Abstract: A method of treatment of a sample of lithium titanium thiophosphate LiTi2(PS4)3 including: (a) providing a solid sample of lithium titanium thiophosphate LiTi2(PS4)3, (b) compressing the lithium titanium thiophosphate sample provided in step (a) to form a compressed powder layer; and (c) sintering the lithium titanium thiophosphate obtained as a compressed powder layer in step (b) at a temperature of at least 200° C. and at most 400° C.Type: GrantFiled: September 5, 2016Date of Patent: July 13, 2021Assignee: TOYOTA MOTOR EUROPEInventor: Yuki Katoh
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Publication number: 20210155494Abstract: The present invention relates to a compound represented by the general formula Li2+2xM1-xZS4, wherein 0.3?x?0.9; wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; and wherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al. The present invention also relates to a method for preparing the material of the present invention, comprising the steps of: (a) providing a mixture of lithium sulfide Li2S, sulfides MS and ZS2, in a stoichiometric ratio ensuring Li2+2xM1-xZS4 to be obtained, wherein M, Z and x are as defined above; (b) pelletizing the mixture prepared in step (a); (c) heating at a maximum plateau temperature. In still another aspect, the present invention relates to a use of the compound of the present invention as a solid electrolyte, in particular in an all solid-state lithium battery.Type: ApplicationFiled: July 5, 2017Publication date: May 27, 2021Inventors: Yuki KATOH, Geoffroy HAUTIER, Anna MIGLIO
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Patent number: 10991987Abstract: A solid state battery (10) including a stack of cells (22), each cell comprising a positive electrode (12), a negative electrode (14) and a solid electrolyte (16) disposed between the positive electrode (12) and the negative electrode (14), wherein a current collector (18) is disposed between the negative electrode (14) of a first cell (20A) and the positive electrode (12) of a second cell (20B), the second cell (20B) being adjacent to the first cell (20A), the solid state battery (10) comprising an ionic conductor (26) having two configurations, a normal configuration wherein the ionic conductor (26) is not in contact with the current collector (18) and a short-circuit configuration wherein the ionic conductor (26) is in contact with the current collector (18), the negative electrode (14) of the first cell (20A) and the positive electrode (12) of the second cell (20B) and wherein the ionic conductor (26) has an ionic conductivity which smaller than an electronic conductivity of the current collector (18).Type: GrantFiled: February 23, 2017Date of Patent: April 27, 2021Assignee: TOYOTA MOTOR EUROPEInventors: Yuya Ishihara, Yuki Katoh