Patents by Inventor Kentaro Kondo
Kentaro Kondo 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: 20240142852Abstract: A waveguide device includes: a photonic crystal layer having holes periodically formed in an electro-optical crystal substrate; a line-defect optical waveguide formed in the photonic crystal layer; a first electrode arranged above the electro-optical crystal substrate, the first electrode being transparent to light; and a second electrode arranged below the electro-optical crystal substrate. Each of an optical scanning device and an optical modulation device includes the above-mentioned waveguide device.Type: ApplicationFiled: January 12, 2024Publication date: May 2, 2024Inventors: Kentaro TANI, Jungo KONDO, Keiichiro ASAI, Shuhei HIGASHIHARA, Naoki FUJITA
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Publication number: 20240125986Abstract: A member for terahertz equipment includes: a substrate main body having a first principal surface and a second principal surface; and a reflection suppressing portion provided on at least one of the first principal surface or the second principal surface of the substrate main body. The reflection suppressing portion includes a plurality of protrusions which are arranged in a grating shape, and each have a tapered portion in a vertical cross section.Type: ApplicationFiled: December 12, 2023Publication date: April 18, 2024Inventors: Kentaro TANI, Jungo KONDO, Masahiko NAMERIKAWA, Yoshio KIKUCHI
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Patent number: 11960056Abstract: Provided is an optical lens formed by integrally molding a lens part that is an optically effective portion and has a light incidence/emission surface, and a lens edge part that is an optically ineffective portion and has a surface thereof except the light incidence/emission surface. The lens edge part includes a non-transparent region in part or all thereof, the lens part and the lens edge part include a thermoplastic resin, and the non-transparent region in the lens edge part contains a total of 0.1-5 mass % of one or more of a black dye and a black pigment.Type: GrantFiled: December 24, 2019Date of Patent: April 16, 2024Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi Motegi, Kentaro Ishihara, Katsushi Nishimori, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Kensuke Oshima, Masahiro Kanda, Shoko Suzuki, Tatsunobu Ogata, Mitsutake Suematsu
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Patent number: 11952460Abstract: A polycarbonate resin having a high refractive index, a low Abbe number and a high moisture and heat resistance is provided. In an embodiment, a polycarbonate resin including a structural unit represented by general formula (1) below is provided.Type: GrantFiled: July 29, 2022Date of Patent: April 9, 2024Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Munenori Shiratake, Kentaro Ishihara, Koji Hirose, Shinya Ikeda, Noriyuki Kato, Mitsuteru Kondo, Shoko Suzuki, Kensuke Oshima, Shuya Nagayama
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Publication number: 20220235009Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractometry.Type: ApplicationFiled: August 24, 2021Publication date: July 28, 2022Applicant: Japan Tobacco Inc.Inventors: Motohide SATOH, Takahisa MOTOMURA, Takashi MATSUDA, Kentaro KONDO, Koji ANDO, Koji MATSUDA, Shuji MIYAKE, Hideto UEHARA
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Method for producing positive electrode active material for nonaqueous electrolyte secondary battery
Patent number: 11108043Abstract: Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, including: a water-washing step of mixing, with water, Li—Ni composite oxide particles represented by the formula: LizNi1-x-yCoxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles to water-wash it, and performing solid-liquid separation to obtain a washed cake; a mixing step of mixing a W compound powder free from Li with the washed cake to obtain a W-containing mixture; and a heat treatment step of heating the W-containing mixture, the heat treatment step including: a first heat treatment step of heating the W-containing mixture to disperse W on the surface of the primary particles; and subsequently, a second heat treatment step of heating it at a higher temperature than in the first heat treatment step to form a lithium tungstate compound on the surface of the primary particles.Type: GrantFiled: October 23, 2019Date of Patent: August 31, 2021Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi, Tetsufumi Komukai -
Publication number: 20210111404Abstract: Disclosed herein is a method for efficiently producing a cathode active material for a lithium ion secondary battery excellent in battery performance such as initial discharge capacity. The cathode active material for a lithium ion secondary battery is produced from spherical particles made of a lithium nickel cobalt composite oxide represented by a general formula: LizNi1?x?yCoxMyO2 (wherein M is at least one element selected from among Mn, V, Mg, W, Mo, Nb, Ti, and Al and x, y, and z satisfy 0<x?0.35, 0?y?0.35, and 0.97?z?1.20, respectively) and having a volume average particle diameter MV in a range of preferably 8 to 30 ?m, wherein an area ratio of a lithium compound unevenly distributed on surfaces of the particles in a SEM image is 5% or less. The spherical particles preferably have a crystallite diameter in a range of 50 to 200 ? as determined from a full width at half maximum, FWHM of diffraction peak of (003) plane obtained by X ray diffraction by using Sherrer formula.Type: ApplicationFiled: April 1, 2019Publication date: April 15, 2021Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Kentaro Kondo, Tetsufumi Komukai
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Patent number: 10784500Abstract: In one aspect, a method for producing a positive electrode active material for a nonaqueous electrolyte secondary battery, includes mixing first lithium nickel composite oxide particles containing lithium tungstate and second lithium nickel composite oxide particles not containing lithium tungstate. The first lithium nickel composite oxide particles have a composition represented by Liz1Ni1-x1-y1Cox1M1y1O2, and include a core material containing secondary particles each corresponding to an aggregation of a plurality of primary particles, and the lithium tungstate existing on at least a part of a surface of the primary particles on a surface of and inside the first lithium nickel composite oxide particles. The second lithium nickel composite oxide particles have a composition represented by Liz2Ni1-x2-y2Cox2M2y2O2, and include secondary particles each corresponding to an aggregation of a plurality of primary particles.Type: GrantFiled: May 1, 2017Date of Patent: September 22, 2020Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi
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Patent number: 10576951Abstract: A determination method is performed by a computer, and the method includes determining, by processor, whether or not a brake was suddenly stepped on, on the basis of comparison between a magnitude of a forward-backward-acceleration differentiation amount obtained through temporal differentiation of acceleration in forward and backward directions of a vehicle measured by an accelerometer mounted on the vehicle and a magnitude of an upward-downward-acceleration differentiation amount obtained through temporal differentiation of acceleration in upward and downward directions of the vehicle measured by the accelerometer in a prescribed temporal interval that temporally ranges before and after a timing at which the acceleration in the forward and backward directions was measured.Type: GrantFiled: July 24, 2017Date of Patent: March 3, 2020Assignee: FUJITSU LIMITEDInventor: Kentaro Kondo
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Patent number: 10571281Abstract: A method executed by a computer includes outputting, by a processor, information representing a position of a spot that is ahead, in a traveling direction of a vehicle, of an occurrence spot on the basis of a position of the occurrence spot and the traveling direction of the vehicle at an occurrence time of an incident of a sudden stepping on a brake, the occurrence spot being of the incident of the sudden stepping on the brake and the position of the occurrence spot and the traveling direction of the vehicle having been determined on the basis of acceleration and a position measured by a sensor provided to the vehicle.Type: GrantFiled: June 15, 2017Date of Patent: February 25, 2020Assignee: FUJITSU LIMITEDInventor: Kentaro Kondo
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Publication number: 20200058938Abstract: Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, including: a water-washing step of mixing, with water, Li—Ni composite oxide particles represented by the formula: LizNi1?x?yCoxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles to water-wash it, and performing solid-liquid separation to obtain a washed cake; a mixing step of mixing a W compound powder free from Li with the washed cake to obtain a W-containing mixture; and a heat treatment step of heating the W-containing mixture, the heat treatment step including: a first heat treatment step of heating the W-containing mixture to disperse W on the surface of the primary particles; and subsequently, a second heat treatment step of heating it at a higher temperature than in the first heat treatment step to form a lithium tungstate compound on the surface of the primary particles.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi, Tetsufumi Komukai
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Patent number: 10497936Abstract: Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, including: a water-washing step of mixing, with water, Li—Ni composite oxide particles represented by the formula: LizNi1-x-yCoxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles to water-wash it, and performing solid-liquid separation to obtain a washed cake; a mixing step of mixing a W compound powder free from Li with the washed cake to obtain a W-containing mixture; and a heat treatment step of heating the W-containing mixture, the heat treatment step including: a first heat treatment step of heating the W-containing mixture to disperse W on the surface of the primary particles; and subsequently, a second heat treatment step of heating it at a higher temperature than in the first heat treatment step to form a lithium tungstate compound on the surface of the primary particles.Type: GrantFiled: December 17, 2015Date of Patent: December 3, 2019Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi, Tetsufumi Komukai
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Publication number: 20190185433Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractmetry.Type: ApplicationFiled: July 20, 2018Publication date: June 20, 2019Applicant: Japan Tobacco Inc.Inventors: Motohide SATOH, Takahisa MOTOMURA, Takashi MATSUDA, Kentaro KONDO, Koji ANDO, Koji MATSUDA, Shuji MIYAKE, Hideto UEHARA
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Publication number: 20180315997Abstract: In one aspect, a method for producing a positive electrode active material for a nonaqueous electrolyte secondary battery, includes mixing first lithium nickel composite oxide particles containing lithium tungstate and second lithium nickel composite oxide particles not containing lithium tungstate. The first lithium nickel composite oxide particles have a composition represented by Liz1Ni1-x1-y1Cox1M1y1O2, and include a core material containing secondary particles each corresponding to an aggregation of a plurality of primary particles, and the lithium tungstate existing on at least a part of a surface of the primary particles on a surface of and inside the first lithium nickel composite oxide particles. The second lithium nickel composite oxide particles have a composition represented by Liz2Ni1-x2-y2Cox2M2y2O2, and include secondary particles each corresponding to an aggregation of a plurality of primary particles.Type: ApplicationFiled: May 1, 2017Publication date: November 1, 2018Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi
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Publication number: 20180029989Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractmetry.Type: ApplicationFiled: March 1, 2017Publication date: February 1, 2018Applicant: Japan Tobacco Inc.Inventors: Motohide SATOH, Takahisa MOTOMURA, Takashi MATSUDA, Kentaro KONDO, Koji ANDO, Koji MATSUDA, Shuji MIYAKE, Hideto UEHARA
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Publication number: 20170352885Abstract: Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, including: a water-washing step of mixing, with water, Li—Ni composite oxide particles represented by the formula: LizNi1-x-yCoxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles to water-wash it, and performing solid-liquid separation to obtain a washed cake; a mixing step of mixing a W compound powder free from Li with the washed cake to obtain a W-containing mixture; and a heat treatment step of heating the W-containing mixture, the heat treatment step including: a first heat treatment step of heating the W-containing mixture to disperse W on the surface of the primary particles; and subsequently, a second heat treatment step of heating it at a higher temperature than in the first heat treatment step to form a lithium tungstate compound on the surface of the primary particles.Type: ApplicationFiled: December 17, 2015Publication date: December 7, 2017Inventors: Kentaro Kondo, Jun Yokoyama, Yuki Furuichi, Tetsufumi Komukai
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Publication number: 20170320475Abstract: A determination method is performed by a computer, and the method includes determining, by processor, whether or not a brake was suddenly stepped on, on the basis of comparison between a magnitude of a forward-backward-acceleration differentiation amount obtained through temporal differentiation of acceleration in forward and backward directions of a vehicle measured by an accelerometer mounted on the vehicle and a magnitude of an upward-downward-acceleration differentiation amount obtained through temporal differentiation of acceleration in upward and downward directions of the vehicle measured by the accelerometer in a prescribed temporal interval that temporally ranges before and after a timing at which the acceleration in the forward and backward directions was measured.Type: ApplicationFiled: July 24, 2017Publication date: November 9, 2017Applicant: FUJITSU LIMITEDInventor: Kentaro KONDO
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Publication number: 20170292842Abstract: A method executed by a computer includes outputting, by a processor, information representing a position of a spot that is ahead, in a traveling direction of a vehicle, of an occurrence spot on the basis of a position of the occurrence spot and the traveling direction of the vehicle at an occurrence time of an incident of a sudden stepping on a brake, the occurrence spot being of the incident of the sudden stepping on the brake and the position of the occurrence spot and the traveling direction of the vehicle having been determined on the basis of acceleration and a position measured by a sensor provided to the vehicle.Type: ApplicationFiled: June 15, 2017Publication date: October 12, 2017Applicant: FUJITSU LIMITEDInventor: Kentaro KONDO
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Publication number: 20150361044Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractometry.Type: ApplicationFiled: January 9, 2015Publication date: December 17, 2015Inventors: Motohide SATOH, Takahisa MOTOMURA, Takashi MATSUDA, Kentaro KONDO, Koji ANDO, Koji MATSUDA, Shuji MIYAKE, Hideto UEHARA
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Publication number: 20100204271Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractometry.Type: ApplicationFiled: August 10, 2009Publication date: August 12, 2010Inventors: MOTOHIDE SATOH, TAKAHISA MOTOMURA, TAKASHI MATSUDA, KENTARO KONDO, KOJI ANDO, KOJI MATSUDA, SHUJI MIYAKE, HIDETO UEHARA