Patents by Inventor Yusuke Osawa
Yusuke Osawa 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: 20250105264Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery containing negative electrode active material particles in which the negative electrode active material particles include particles of a silicon compound (SiOx: 0.5?x?1.6), in which the negative electrode active material particles are at least partially coated with carbon material, the negative electrode active material particles contain Li in which content of the Li relative to the negative electrode active material particles is 9.7 mass % or more or less than 13.2 mass %, at least part of the Li is present as Li2SiO3, and when the negative electrode active material particles are measured by X-ray diffraction using Cu-K? rays, an intensity Ia of a peak around 2?=47.5° attributable to Si obtained by the X-ray diffraction and a peak intensity Tb of a peak around 2?=18.7° attributable to Li2SiO3 obtained by the X-ray diffraction satisfy 1?Ib/Ia?18.Type: ApplicationFiled: December 27, 2022Publication date: March 27, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohta TAKAHASHI, Takakazu HIROSE, Takuya ISHIKAWA, Yusuke OSAWA, Masaki MURAYAMA
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Patent number: 12253637Abstract: Provided is a scintillator panel including: a support; a scintillator layer provided on the support, the scintillator layer being composed of a columnar crystal; and a protective film covering at least the scintillator layer. The scintillator layer contains cesium iodide as a base material and cerium as an activator.Type: GrantFiled: February 26, 2021Date of Patent: March 18, 2025Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yusuke Minami, Hirotake Osawa
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Publication number: 20250079447Abstract: A negative electrode active material including negative electrode active material particles, wherein the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, at least a part of the silicon oxide particles contains at least one selected from the group consisting of Li2SiO3, Li4SiO4, and Li6Si2O7, and a part of at least an outermost layer of the negative electrode active material particles is coated with a layer of a plasticizer. This can provide: a negative electrode active material that can increase stability in slurry formation while achieving sufficient battery characteristics; and a negative electrode including such a negative electrode active material.Type: ApplicationFiled: December 1, 2022Publication date: March 6, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTDInventors: Takakazu HIROSE, Kohta TAKAHASHI, Yusuke OSAWA, Shuhei KANESATO, Masaki MURAYAMA, Reiko SAKAI
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Publication number: 20250055031Abstract: A non-aqueous electrolyte used for a non-aqueous electrolyte secondary battery in which a negative electrode contains at least any of a silicon compound, a germanium compound, and a tin compound as a negative electrode active material particle, the non-aqueous electrolyte including a silane compound represented by the following general formula (1). This provides a non-aqueous electrolyte and a non-aqueous electrolyte secondary battery in which a battery cell hardly expands even when a negative electrode material such as a silicon material is used.Type: ApplicationFiled: August 9, 2022Publication date: February 13, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Shuhei KANESATO, Takakazu HIROSE, Yusuke OSAWA, Ayumu KIYOMORI, Shotaro AOKI
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Publication number: 20250055032Abstract: A non-aqueous electrolyte used for a non-aqueous electrolyte secondary battery, including a silane compound represented by the following general formula (1). By this configuration, a highly safe non-aqueous electrolyte and a non-aqueous electrolyte secondary battery even after charge and discharge are provided: Si(R1)t(R2)m(R3)4-1-m??(1) wherein R1 represents a heteroaryl group having 4 to 20 carbon atoms; R2 represents an alkenyl group or an alkynyl group having 2 to 20 carbon atoms; R3 represents an alkyl group having 1 to 20 carbon atoms; and “l” and “m” each independently represents an integer of 1 to 3, provided that 2?1+m?4 is satisfied.Type: ApplicationFiled: August 9, 2022Publication date: February 13, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Shuhei KANESATO, Takakazu HIROSE, Yusuke OSAWA, Ayumu KIYOMORI, Shotaro AOKI
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Patent number: 12214457Abstract: A fastening tool includes: a cylindrical rotation guide member extending in one direction and rotatably supported; a holding member having an opening in which a driver bit is detachably inserted, and configured to move in an axis direction along the extension direction of the rotation guide member inside the rotation guide member and to rotate together with the rotation guide member; and a moving member configured to move the holding member in a front and rear direction along the rotation guide member; a rotation member; and a transmission member connected to the moving member and having flexibility to be wound along an outer periphery of the rotation member. The rotation member is rotated by the motor, so that the moving member is moved with the transmission member in one direction in which a screw engaged with the driver bit is pressed against a fastening target.Type: GrantFiled: March 4, 2022Date of Patent: February 4, 2025Assignee: Max Co., Ltd.Inventors: Michio Yamashita, Yusuke Osawa, Kazuya Takeuchi
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Patent number: 12186844Abstract: A fastening tool includes: a cylindrical rotation guide member extending in one direction and rotatably supported; a holding member having an opening to which a driver bit is detachably inserted, and configured to move in an axis direction along the extension direction of the rotation guide member inside the rotation guide member and to rotate together with the rotation guide member; and a moving member configured to move the holding member in a front and rear direction along the rotation guide member.Type: GrantFiled: March 4, 2022Date of Patent: January 7, 2025Assignee: Max Co., Ltd.Inventors: Michio Yamashita, Yusuke Osawa, Kazuya Takeuchi
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Patent number: 12186843Abstract: A fastening tool including a bit holding unit configured to hold a driver bit so as to be rotatable and to be movable in an axis direction, a first drive unit having a first motor configured to rotate the driver bit held by the bit holding unit, and a second drive unit having a second motor configured to move the driver bit held by the bit holding unit along the axis direction.Type: GrantFiled: March 4, 2022Date of Patent: January 7, 2025Assignee: Max Co., Ltd.Inventors: Michio Yamashita, Yusuke Osawa, Kazuya Takeuchi
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Publication number: 20240375968Abstract: A negative electrode including negative electrode active material particles, wherein the negative electrode is charged and discharged at least once, the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, and the silicon oxide particles contain Li2SiO3, and in an O1s bonding energy obtained by XPS analysis on a particle inside, an intensity of a peak A obtained near 529.5 eV and an intensity of a peak B obtained near 532.5 eV have a relationship of (intensity of peak A)?(intensity of peak B). Thus, a negative electrode can increase a battery capacity with improvement of initial efficiency and can achieve sufficient battery cycle characteristics.Type: ApplicationFiled: June 30, 2022Publication date: November 14, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu HIROSE, Takumi MATSUNO, Yusuke OSAWA, Reiko SAKAI
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Patent number: 12142758Abstract: A negative electrode active material containing negative electrode active material particles. The negative electrode active material particles include silicon compound particles each containing an oxygen-containing silicon compound. The silicon compound particle contains at least one of Li2SiO3 and Li2Si2O5. The silicon compound particle has, in a Si K-edge spectrum obtained from a XANES spectrum: a peak P derived from the Li silicate and located near 1847 eV; and a peak Q gentler than the peak P and located near 1851 to 1852 eV. This provides a negative electrode active material that is capable of stabilizing a slurry when the negative electrode active material is used for a secondary battery, and capable of increasing the battery capacity by improving the initial efficiency.Type: GrantFiled: November 5, 2019Date of Patent: November 12, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu Hirose, Reiko Sakai, Yusuke Osawa, Kohta Takahashi, Takumi Matsuno
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Publication number: 20240363840Abstract: A negative electrode which significantly increases capacity while maintaining excellent battery characteristics and a method to produce the negative electrode including a negative electrode current collector having a surface roughened; and a negative electrode active material layer provided on the negative electrode current collector. The negative electrode active material layer contains negative electrode active material particles including a compound of lithium, silicon, and oxygen, and a ratio, O/Si, of the oxygen to the silicon, constituting the negative electrode active material particles is within a range of 0.8 or more to 1.2 or less. The negative electrode active material layer has a multilayer structure composed of two or more layers, and each layer of the multilayer structure of the negative electrode active material layer has, on an upper portion, a layer containing a quadrivalent silicon compound containing at least one or more of lithium and oxygen.Type: ApplicationFiled: June 30, 2022Publication date: October 31, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Yusuke OSAWA, Takakazu HIROSE, Takumi MATSUNO
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Publication number: 20240363901Abstract: A non-aqueous electrolyte liquid including: a non-aqueous solvent; an electrolyte salt dissolved in the non-aqueous solvent; and a silane compound represented by the following general formula (1), Si ( R 1 ) l ? ( R 2 ) m ? ( R 3 ) n ? ( R 4 ) 4 - l - m - n ( 1 ) wherein R represents an alkenyl group having 2 to 20 carbon atoms, R2 represents a substituted or unsubstituted arylethynyl group having 8 to 20 carbon atoms, R3 represents an alkyl group having 1 to 20 carbon atoms, R4 represents an alkynyl group having 2 to 20 carbon atoms, “l” and “m” each independently represent an integer of 1 to 3, “n” represents an integer of 0 to 2, and “l”, “m”, and “n” represent integers satisfying 2?l+m+n?4.Type: ApplicationFiled: June 27, 2022Publication date: October 31, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Shotaro AOKI, Ayumu KIYOMORI, Takakazu HIROSE, Yusuke OSAWA, Shuhei KANESATO
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Publication number: 20240351894Abstract: A negative electrode active material including negative electrode active material particles, wherein the negative electrode active material particles contain silicon compound particles containing lithium and oxygen, a ratio between oxygen and silicon satisfying SiOx:0.8?X?1.2, and containing Li2SiO3, a Si crystallite size is 10 nm or less, the particles are coated with a carbon coating, and a peak height P1 derived from at least a part of lithium carbonate and a peak height P2 derived from at least a part of Li2SiO3 satisfy a relationship of 2?P2/P1?3.5, the peak of P1 appearing within a range of a diffraction angle 2? of 20 to 21° and the peak of P2 appearing within a range of the diffraction angle 2? of 17 to 20° with X-ray diffraction using CuK? radiation.Type: ApplicationFiled: April 28, 2022Publication date: October 24, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Yusuke OSAWA, Takumi MATSUNO, Takakazu HIROSE, Kohta TAKAHASHI, Masahiro FURUYA
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Publication number: 20240356018Abstract: A non-aqueous electrolyte used for a non-aqueous electrolyte secondary battery in which a negative electrode contains at least any of a silicon compound, a germanium compound, and a tin compound as a negative electrode active material particle, the non-aqueous electrolyte including at least one or more silane compounds selected from silane compounds represented by the following general formulae (1), (2), etc. This provides a non-aqueous electrolyte and a non-aqueous electrolyte secondary battery in which a battery cell hardly expands even when the negative electrode material such as the silicon material is used.Type: ApplicationFiled: August 9, 2022Publication date: October 24, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Shuhei KANESATO, Takakazu HIROSE, Yusuke OSAWA, Ayumu KIYOMORI, Shotaro AOKI
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Publication number: 20240347701Abstract: A negative electrode active material including negative electrode active material particles, wherein the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, and the silicon oxide particles contain Li2SiO3, and a Si2p spectrum obtained by XPS analysis has a strongest peak A near 102 eV, a second strongest peak B corresponding to a low-valent Si compound having a valency of any one of 1 to 3 near 100 eV, and a peak C of Si: 0-valency obtained near 99 eV having an intensity of less than or equal to half of an intensity of the peak A. This provides a negative electrode active material that can increase a battery capacity with improvement of initial efficiency and that can achieve sufficient battery cycle characteristics.Type: ApplicationFiled: June 30, 2022Publication date: October 17, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu HIROSE, Takumi MATSUNO, Yusuke OSAWA, Reiko SAKAI
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Publication number: 20240339603Abstract: The present invention is a negative electrode active material containing negative electrode active material particles. The negative electrode active material particles include silicon compound particles each containing an oxygen-containing silicon compound. The silicon compound particle contains at least one of Li2SiO3 and Li2Si2O5. The silicon compound particle has, in a Si K-edge spectrum obtained from a XANES spectrum: a peak P derived from the Li silicate and located near 1847 eV; and a peak Q gentler than the peak P and located near 1851 to 1852 eV. This provides a negative electrode active material that is capable of stabilizing a slurry when the negative electrode active material is used for a secondary battery, and capable of increasing the battery capacity by improving the initial efficiency.Type: ApplicationFiled: June 17, 2024Publication date: October 10, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu HIROSE, Reiko SAKAI, Yusuke OSAWA, Kohta TAKAHASHI, Takumi MATSUNO
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Publication number: 20240339608Abstract: A negative electrode includes a negative electrode current collector with a surface having roughened surface, and a negative electrode active material layer provided on the negative electrode current collector, in which the negative electrode active material layer has a multilayer structure, in the multilayer structure, a central portion of each layer in a thickness direction includes a composite compound containing silicon, lithium, and oxygen, a plurality of first regions having a lower amount of oxygen, and a plurality of second regions having a higher amount of oxygen than the first regions, and an average width of each of a maximum width in the first regions and a maximum width in the second regions is 10 nm or less. Thereby the negative electrode can significantly increase a capacity while maintaining excellent battery characteristics.Type: ApplicationFiled: June 29, 2022Publication date: October 10, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu HIROSE, Kohta TAKAHASHI, Yusuke OSAWA, Reiko SAKAI, Masaki MURAYAMA
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Patent number: 12103144Abstract: A fastening tool includes: a bit holding portion which detachably holds a driver bit and is configured to rotate in a circumferential direction of the driver bit and move in an axial direction of the driver bit; a first motor configured to rotate the bit holding portion; a second motor configured to move the bit holding portion along the axial direction; and a control unit configured to control a position of the bit holding portion along the axial direction by the number of rotations of the second motor. The control unit is configured to control a moving speed of a screw moved by rotation of the first motor or a rotation speed of the first motor.Type: GrantFiled: September 12, 2022Date of Patent: October 1, 2024Assignee: Max Co., Ltd.Inventors: Yusuke Osawa, Kazuya Takeuchi
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Publication number: 20240322162Abstract: A negative electrode active material for non-aqueous electrolyte secondary battery, the material including a negative electrode active material particle, wherein the particle contains a silicon compound particle containing a silicon compound containing oxygen, at least part of a surface of the compound particle is coated with carbon layer, the compound particle contains Li2SiO3 as a Li silicate, the Li2SiO3 is a material wherein at least a part of the Li2SiO3 is to change into Li4SiO4 by charging and discharging the particle once or more, and an abundance ratio of the Li2SiO3 is higher than that of the Li4SiO4 before charging and discharging the particle, and the abundance ratio of the Li4SiO4 is higher than that of the Li2SiO3 after charge and discharge at 100 times. Provided is a material that can achieve increase in battery capacity with improvement of initial efficiency, sufficient battery cycle characteristics, and input characteristics.Type: ApplicationFiled: December 7, 2021Publication date: September 26, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takakazu HIROSE, Takumi MATSUNO, Yusuke OSAWA, Reiko SAKAI, Hiroyuki KOIDE
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Patent number: 12074319Abstract: The inventive negative electrode active material for a non-aqueous electrolyte secondary battery contains negative electrode active material particles which include silicon compound (SiOx: 0.5?x?1.6) particles. The negative electrode active material particles are at least partially coated with a carbon material, contain one or more selected from Li2SiO3 and Li2Si2O5, and satisfy Ib/Ia?4.8 and Ic/Ia?6.0 in an X-ray diffraction measurement using a Cu-K? line. Ia represents an intensity of a peak around 2?=28.4° attributable to Si obtained by the X-ray diffraction. Ib represents a peak intensity of a peak attributable to Li2SiO3 obtained by the X-ray diffraction. Ic represents a peak intensity of a peak attributable to Li2Si2O5 obtained by the X-ray diffraction.Type: GrantFiled: December 26, 2019Date of Patent: August 27, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohta Takahashi, Yusuke Osawa, Takakazu Hirose, Yoshiyasu Yamada, Takumi Matsuno