Patents by Inventor Kentaro Yamaguchi
Kentaro Yamaguchi 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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Patent number: 11232898Abstract: A 0.5-displacement region in which a first wire and a second wire are displaced by 0.5 turns from each other, and a 1.5-displacement region in which the first wire and the second wire are displaced by 1.5 turns in an opposite direction to a 0.5-displacement region are distributed along an axis direction on a winding core portion. The sum of the number of turns of the second wire located in the 0.5-displacement region being twice or more and five times or less than the sum of the number of turns of the second wire located in the 1.5-displacement region.Type: GrantFiled: December 20, 2018Date of Patent: January 25, 2022Assignee: Murata Manufacturing Co., Ltd.Inventors: Masashi Miyamoto, Shigeto Yamamoto, Kentaro Yamaguchi
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Patent number: 11232904Abstract: A taping reel with a plurality of coil components packed in the tape reel, comprising a tape including a plurality of pockets arranged along a longitudinal direction and each having one of the coil components stored therein, and a reel around which the tape is wound. The coil components each include a core including a winding core part, and a coil wound around the winding core part and including a plurality of wires. The coil includes a twisted wire portion in which the plurality of wires is twisted together. The plurality of coil components includes first coil components having the twisting direction of the twisted wire portion opposite to the twisting direction of the twisted wire portion of other coil components.Type: GrantFiled: July 7, 2020Date of Patent: January 25, 2022Assignee: Murata Manufacturing Co., Ltd.Inventors: Takashi Sukegawa, Masashi Miyamoto, Ryota Hashimoto, Kentaro Yamaguchi, Chihiro Yamaguchi
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Patent number: 11208608Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1, 1, 1, 2-tetrafluoroethane, a mixture of pentafluoroethane, 1, 1, 1, 2-tetrafluoroethane, and 1, 1, 1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.Type: GrantFiled: October 20, 2017Date of Patent: December 28, 2021Assignee: ENEOS CORPORATIONInventors: Kentaro Yamaguchi, Akira Tada, Tatsuki Nakajima, Takeshi Okido, Hidetoshi Ogata
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Publication number: 20210272742Abstract: A terminal electrode has a flat surface to which an end portion of a wire is connected, a low surface lower in a thickness direction of the terminal electrode than the flat surface, and a shift surface connects the flat surface and the low surface and increases a height in the thickness direction from the low surface to the flat surface. The wire has a first portion, a second portion and a third portion opposing the flat surface, the shift surface and the low surface, respectively. The first portion has a flattened cross-sectional shape, and the second portion has a semi-flattened cross-sectional shape.Type: ApplicationFiled: May 17, 2021Publication date: September 2, 2021Applicant: Murata Manufacturing Co., Ltd.Inventors: Akio IGARASHI, Kentaro YAMAGUCHI
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Publication number: 20210265169Abstract: An etching method includes: (a) etching a substrate including an etching target film and a mask formed on the etching target film to form a recess that reaches the etching target film; (b) forming a protective film having a thickness corresponding to one molecular layer on a surface of the recess using a first gas; (c) etching the etching target film with plasma generated from a second gas while leaving the protective film on a side wall of the recess; and (d) repeating (b) and (c).Type: ApplicationFiled: February 19, 2021Publication date: August 26, 2021Applicant: TOKYO ELECTRON LIMITEDInventors: Kentaro YAMAGUCHI, Yusuke TAKINO
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Patent number: 11087918Abstract: A 0.5-displacement region in which a first wire and a second wire are displaced by 0.5 turns from each other, and a 1.5-displacement region in which the first wire and the second wire are displaced by 1.5 turns in an opposite direction to a 0.5-displacement region are distributed along an axis direction on a winding core portion. The sum of the number of turns of the second wire located in the 0.5-displacement region being twice or more and five times or less than the sum of the number of turns of the second wire located in the 1.5-displacement region.Type: GrantFiled: December 7, 2017Date of Patent: August 10, 2021Assignee: Murata Manufacturing Co., Ltd.Inventors: Masashi Miyamoto, Shigeto Yamamoto, Kentaro Yamaguchi
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Patent number: 11062838Abstract: A terminal electrode has a flat surface to which an end portion of a wire is connected, a low surface lower in a thickness direction of the terminal electrode than the flat surface, and a shift surface connects the flat surface and the low surface and increases a height in the thickness direction from the low surface to the flat surface. The wire has a first portion, a second portion and a third portion opposing the flat surface, the shift surface and the low surface, respectively. The first portion has a flattened cross-sectional shape, and the second portion has a semi-flattened cross-sectional shape.Type: GrantFiled: June 12, 2018Date of Patent: July 13, 2021Assignee: Murata Manufacturing Co., Ltd.Inventors: Akio Igarashi, Kentaro Yamaguchi
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Patent number: 11001779Abstract: The present invention, in one aspect, provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, and R3 and R4 each independently represent a hydrogen atom or an alkyl group, the refrigerating machine oil being used with a refrigerant including an unsaturated hydrofluorocarbon.Type: GrantFiled: September 14, 2017Date of Patent: May 11, 2021Assignee: ENEOS CORPORATIONInventors: Yohei Shono, Kentaro Yamaguchi, Yuya Mizutani, Takeshi Okido, Hidetoshi Ogata
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Patent number: 10976267Abstract: The present invention is a method for analyzing diffraction data obtained using a crystal structure analysis sample, the sample comprising a single crystal of a porous compound, and a compound for which a structure is to be determined. The method comprising: a step (I) that selects a space group that is identical to a space group of the single crystal of the porous compound, or a space group that has a symmetry lower than that, to be a space group of the crystal structure analysis sample; a step (II) that determines an initial structure of the crystal structure analysis sample using diffraction data with respect to a crystal structure of the single crystal of the porous compound as initial values; and a step (III) that refines the initial structure determined.Type: GrantFiled: July 30, 2015Date of Patent: April 13, 2021Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Makoto Fujita, Yasuhide Inokuma, Kentaro Yamaguchi
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Patent number: 10913918Abstract: The present invention provides a refrigerating machine oil comprising: a lubricating base oil; and 40 mass % or less of a polymer, based on a total amount of the refrigerating machine oil, the polymer having a structural unit represented by the following formula (I) and a weight average molecular weight of from 500 to 100000. [In formula (I), Ra, Rb and Rc each independently represents a hydrogen atom or a hydrocarbon group, and Rd represents an oxygen-containing organic group or a C1-18 hydrocarbon group.Type: GrantFiled: April 14, 2017Date of Patent: February 9, 2021Assignee: ENEOS CORPORATIONInventors: Hiroko Shimpo, Kentaro Yamaguchi, Hidetoshi Ogata, Takeshi Okido
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Publication number: 20210020409Abstract: A plasma processing method includes: placing a substrate on a substrate support provided in a chamber of a capacitively coupled plasma processing apparatus where the substrate includes a silicon-containing film and a mask provided on the silicon-containing film and having an opening having a longitudinal direction; and supplying an inert gas into the chamber; and selectively performing one of supplying a first radio-frequency power to an upper electrode of the plasma processing apparatus to generate plasma from the inert gas and supplying a second radio-frequency power to a lower electrode of the plasma processing apparatus included in the substrate support, and applying a negative bias voltage to the upper electrode to cause positive ions from the plasma to collide with the upper electrode and release a silicon-containing material from the upper electrode, thereby depositing the silicon-containing material on the substrate.Type: ApplicationFiled: July 25, 2019Publication date: January 21, 2021Applicant: Tokyo Electron LimitedInventors: Kosuke OGASAWARA, Kentaro YAMAGUCHI, Takanori BANSE
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Publication number: 20210009884Abstract: One aspect of the present invention is a refrigerating machine including a refrigerant circulation system including a compressor, a condenser, an expansion mechanism, and an evaporator, and the refrigerant circulation system being filled with a refrigerant and a refrigerating machine oil, wherein the refrigerating machine oil contains: a first base oil having a compatible region with the refrigerant in a range of a temperature of 30° C. or lower and an oil ratio of 1 to 80% by mass; and a second base oil having a kinematic viscosity at 40° C. lower than the first base oil and having a narrower compatible region with the refrigerant than the first base oil.Type: ApplicationFiled: April 2, 2019Publication date: January 14, 2021Applicant: ENEOS CorporationInventors: Kentaro YAMAGUCHI, Yuya MIZUTANI, Satoshi NAGAI, Hidetoshi OGATA
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Patent number: 10836975Abstract: The present invention provides a refrigerating machine oil comprising: a base oil; a compound represented by the following formula (1): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, R3 represents a divalent hydrocarbon group and R4 represents a hydrogen atom or a monovalent hydrocarbon group; and an epoxy compound.Type: GrantFiled: October 23, 2015Date of Patent: November 17, 2020Assignee: ENEOS CorporationInventors: Hitoshi Takahashi, Kentaro Yamaguchi, Souichirou Konno, Fumiyuki Nara
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Publication number: 20200335278Abstract: A taping reel with a plurality of coil components packed in the tape reel, comprising a tape including a plurality of pockets arranged along a longitudinal direction and each having one of the coil components stored therein, and a reel around which the tape is wound. The coil components each include a core including a winding core part, and a coil wound around the winding core part and including a plurality of wires. The coil includes a twisted wire portion in which the plurality of wires is twisted together. The plurality of coil components includes first coil components having the twisting direction of the twisted wire portion opposite to the twisting direction of the twisted wire portion of other coil components.Type: ApplicationFiled: July 7, 2020Publication date: October 22, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Takashi SUKEGAWA, Masashi MIYAMOTO, Ryota HASHIMOTO, Kentaro YAMAGUCHI, Chihiro YAMAGUCHI
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Patent number: 10763040Abstract: A taping reel with a plurality of coil components packed in the tape reel, comprising a tape including a plurality of pockets arranged along a longitudinal direction and each having one of the coil components stored therein, and a reel around which the tape is wound. The coil components each include a core including a winding core part, and a coil wound around the winding core part and including a plurality of wires. The coil includes a twisted wire portion in which the plurality of wires is twisted together. The plurality of coil components includes first coil components having the twisting direction of the twisted wire portion opposite to the twisting direction of the twisted wire portion of other coil components.Type: GrantFiled: May 24, 2019Date of Patent: September 1, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Takashi Sukegawa, Masashi Miyamoto, Ryota Hashimoto, Kentaro Yamaguchi, Chihiro Yamaguchi
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Publication number: 20200227979Abstract: A rotary electric machine of the embodiment includes a stator including a cylindrical stator core, and a coil mounted on the stator core, and a rotor disposed radially inward of the stator, wherein the rotor includes a rotor core having a rotor internal flow path through which a refrigerant is able to flow by axial center cooling, and an end surface plate disposed at an end of the rotor core in an axial direction, and the end surface plate includes a refrigerant flow hole configured to communicate with the rotor internal flow path, and a surface treatment portion disposed at least between the refrigerant flow hole and an outer peripheral edge of the end surface plate, and a surface tension of the surface treatment portion is smaller than that of the end surface plate.Type: ApplicationFiled: January 9, 2020Publication date: July 16, 2020Inventors: Tadashi Yamaguchi, Toru Kishi, Shigeji Nakano, Motoshi Togasaki, Kentaro Yamaguchi
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Publication number: 20200199476Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane, a mixture of pentafluoroethane, 1,1,1,2-tetrafluoroethane, and 1,1,1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.Type: ApplicationFiled: October 20, 2017Publication date: June 25, 2020Applicant: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Kentaro YAMAGUCHI, Akira TADA, Tatsuki NAKAJIMA, Takeshi OKIDO, Hidetoshi OGATA
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Publication number: 20200088722Abstract: Disclosed are a PIVKA-II measurement method that achieves better serum-plasma correlation than conventional methods, and a reagent and a kit therefor. The PIVKA-II measurement method according to the present invention comprises measuring PIVKA-II in a sample by an immunoassay using a mixture of an anti-F1 antibody that specifically binds to prothrombin fragment F1 or an antigen-binding fragment thereof and an anti-F2 antibody that specifically binds to prothrombin fragment F2 or an antigen-binding fragment thereof; and an anti-PIVKA-II antibody that specifically binds to PIVKA-II or an antigen-binding fragment thereof.Type: ApplicationFiled: November 26, 2019Publication date: March 19, 2020Applicants: FUJIREBIO INC., SEKISUI MEDICAL CO., LTD.Inventors: Kentaro YAMAGUCHI, Katsumi AOYAGI, Azusa TERAO
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Publication number: 20200035433Abstract: An electromagnetic relay has a contact device and an electromagnet device. An electromagnetic relay has stators which are a pair of rod-like members, and a mover. The mover may face the side of the stator. A housing supports the stator and accommodates the mover. A yoke is fixed to the housing so as to face the movable facing surface and contains a soft magnetic material.Type: ApplicationFiled: May 31, 2019Publication date: January 30, 2020Applicants: DENSO CORPORATION, ANDEN CO., LTD.Inventors: Yoshitaka NISHIGUCHI, Takahiro SOKI, Masanao SUGISAWA, Kentaro YAMAGUCHI
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Patent number: 10539559Abstract: Disclosed are a PIVKA-II measurement method that achieves better serum-plasma correlation than conventional methods, and a reagent and a kit therefor. The PIVKA-II measurement method according to the present invention comprises measuring PIVKA-II in a sample by an immunoassay using a mixture of an anti-F1 antibody that specifically binds to prothrombin fragment F1 or an antigen-binding fragment thereof and an anti-F2 antibody that specifically binds to prothrombin fragment F2 or an antigen-binding fragment thereof; and an anti-PIVKA-II antibody that specifically binds to PIVKA-II or an antigen-binding fragment thereof.Type: GrantFiled: August 6, 2013Date of Patent: January 21, 2020Assignees: FUJIREBIO INC., SEKISUI MEDICAL CO., LTD.Inventors: Kentaro Yamaguchi, Katsumi Aoyagi, Azusa Terao