Patents by Inventor Kenichi Iso
Kenichi Iso 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: 11919084Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder. A plurality of particles of the metal powder are exposed from the resin material and make contact with one another on the outer surface of the element.Type: GrantFiled: August 18, 2022Date of Patent: March 5, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Keita Muneuchi, Eiji Iso, Isao Ida, Kenichi Araki, Noriko Shimizu, Takashi Tomohiro
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Patent number: 11580362Abstract: According to one aspect of an embodiment a learning apparatus includes a first acquiring unit that acquires first output information that is output by an output layer when predetermined input information is input to a model that includes an input layer, a plurality of intermediate layers, and the output layer. The learning apparatus includes a second acquiring unit that acquires intermediate output information that is based on pieces of intermediate information that are output by the plurality of intermediate layers when the input information is input to the model. The learning apparatus includes a learning unit that learns the model based on the first output information and the intermediate output information.Type: GrantFiled: September 13, 2018Date of Patent: February 14, 2023Assignee: YAHOO JAPAN CORPORATIONInventors: Tran Dung, Kenichi Iso
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Publication number: 20190385590Abstract: A generating device according to the present application includes an obtaining unit and a first generating unit. The obtaining unit obtains training data including an acoustic feature value of a first observation signal, a late reverberation component corresponding to the first observation signal, and a phoneme label associated with the first observation signal. The first generating unit generates an acoustic model to identify a phoneme label corresponding to a second observation signal based on the training data obtained by the obtaining unit.Type: ApplicationFiled: February 25, 2019Publication date: December 19, 2019Applicant: YAHOO JAPAN CORPORATIONInventors: Motoi OMACHI, Tran DUNG, Kenichi ISO, Yuya FUJITA
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Publication number: 20190122099Abstract: According to one aspect of an embodiment a learning apparatus includes a first acquiring unit that acquires first output information that is output by an output layer when predetermined input information is input to a model that includes an input layer, a plurality of intermediate layers, and the output layer. The learning apparatus includes a second acquiring unit that acquires intermediate output information that is based on pieces of intermediate information that are output by the plurality of intermediate layers when the input information is input to the model. The learning apparatus includes a learning unit that learns the model based on the first output information and the intermediate output information.Type: ApplicationFiled: September 13, 2018Publication date: April 25, 2019Applicant: YAHOO JAPAN CORPORATIONInventors: Tran DUNG, Kenichi ISO
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Patent number: 10259902Abstract: According to the present invention, there is provided a resol phenolic resin for a friction material wherein the resol phenolic resin has a structural unit A represented by Formula (1) and a structural unit B represented by Formula (2): wherein in Formula (1), m represents an integer of 1 or more; in a case where m is 1, R represents a methylol group; and in a case where m is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group; and wherein in Formula (2), n represents an integer of 1 or more; in a case where n is 1, R represents a methylol group; and in a case where n is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group.Type: GrantFiled: March 31, 2016Date of Patent: April 16, 2019Assignee: SUMITOMO BAKELITE COMPANY LIMITEDInventors: Hajime Mifuka, Tadashige Hirano, Kenichi Iso
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Patent number: 9567545Abstract: A grease composition for EV/HEV driving motor bearing, containing a diurea thickener of the following formula (A): wherein R1, R2 and R3 are defined, with the ratio of the number of moles of the straight-chain or branched alkyl group having 16 to 20 carbon atoms to the total number of moles of the cyclohexyl group and the straight-chain or branched alkyl group having 16 to 20 carbon atoms, expressed as [((the number of alkyl group)/(the number of cyclohexyl group+the number of alkyl group))×100] being 60 to 80%, and a base oil which has a kinematic viscosity at 40° C. of 15 to 50 mm2/s and includes a trimethylolpropane ester oil in an amount of 80 mass % or more based on the total base oil mass. The grease composition can exhibit a long bearing lubrication life at high temperature and high speed, and satisfactory low-temperature flowability.Type: GrantFiled: July 27, 2012Date of Patent: February 14, 2017Assignees: NSK LTD., KYODO YUSHI CO., LTD.Inventors: Hironori Mizuki, Takeshi Maejima, Kenichi Iso, Kazunori Nakagawa, Yutaka Imai, Ryo Aida
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Publication number: 20160289367Abstract: According to the present invention, there is provided a resol phenolic resin for a friction material wherein the resol phenolic resin has a structural unit A represented by Formula (1) and a structural unit B represented by Formula (2): wherein in Formula (1), m represents an integer of 1 or more; in a case where m is 1, R represents a methylol group; and in a case where m is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group; and wherein in Formula (2), n represents an integer of 1 or more; in a case where n is 1, R represents a methylol group; and in a case where n is 2 or more, R's independently represent a hydrogen atom or a methylol group and at least one R is a methylol group.Type: ApplicationFiled: March 31, 2016Publication date: October 6, 2016Applicants: SUMITOMO BAKELITE CO., LTD., NSK-WARNER K.K.Inventors: Hajime Mifuka, Tadashige Hirano, Kenichi Iso
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Publication number: 20140142012Abstract: A grease composition for EV/HEV driving motor bearing, containing a diurea thickener of the following formula (A): wherein R1, R2 and R3 are defined, with the ratio of the number of moles of the straight-chain or branched alkyl group having 16 to 20 carbon atoms to the total number of moles of the cyclohexyl group and the straight-chain or branched alkyl group having 16 to 20 carbon atoms, expressed as [((the number of alkyl group)/(the number of cyclohexyl group+the number of alkyl group))×100] being 60 to 80%, and a base oil which has a kinematic viscosity at 40° C. of 15 to 50 mm2/s and includes a trimethylolpropane ester oil in an amount of 80 mass % or more based on the total base oil mass. The grease composition can exhibit a long bearing lubrication life at high temperature and high speed, and satisfactory low-temperature flowability.Type: ApplicationFiled: July 27, 2012Publication date: May 22, 2014Applicants: KYODO YUSHI CO., LTD., NSK LTD.Inventors: Hironori Mizuki, Takeshi Maejima, Kenichi Iso, Kazunori Nakagawa, Yutaka Imai, Ryo Aida
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Patent number: 8303192Abstract: A resin snap cage 4 comprises a resin-made circular main part 10, a plurality of pockets 11 provided in one axial end face of the circular main part 10, and a circular reinforcing member 12 installed concentrically at the other end face in an axial direction of the circular main part 10. While this reinforcing member 12 is circular along the circular main part 10, a sectional shape in a plane parallel to an axial direction is a rectangle. The reinforcing member 12 is embedded in a recessed portion formed at the other end face in an axial direction of the circular main part 10 to be integrated, an outside diameter surface 12a, an inside diameter surface 12b, and a pocket-side surface 12c of the reinforcing member 12 are covered with the circular main part 10, and a surface 12d thereof opposite to the pocket side is exposed.Type: GrantFiled: November 20, 2006Date of Patent: November 6, 2012Assignee: NSK Ltd.Inventors: Takiyoshi Yamada, Takahiko Uchiyama, Kenichi Iso, Junji Ono, Masahiro Harunaga, Kinji Yukawa, Makoto Yasuda, Jianjun Zhan, Nariaki Aihara
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Patent number: 8007181Abstract: A grease composition having an apparent viscosity at ?30° C. of 5 to 200 Pa·s is sealed in a rolling bearing which retains a plurality of rolling elements between an inner ring and an outer ring in such a way that the rolling elements can freely roll. Thereby, there is provided a rolling bearing which has a satisfactory lubricating performance and generates less abnormal noise even under a low temperature of around ?40° C.Type: GrantFiled: July 19, 2005Date of Patent: August 30, 2011Assignee: NSK Ltd.Inventors: Kenichi Iso, Yujiro Toda, Yoichi Imamura
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Publication number: 20090220181Abstract: A resin snap cage 4 comprises a resin-made circular main part 10, a plurality of pockets 11 provided in one axial end face of the circular main part 10, and a circular reinforcing member 12 installed concentrically at the other end face in an axial direction of the circular main part 10. While this reinforcing member 12 is circular along the circular main part 10, a sectional shape in a plane parallel to an axial direction is a rectangle. The reinforcing member 12 is embedded in a recessed portion formed at the other end face in an axial direction of the circular main part 10 to be integrated, an outside diameter surface 12a, an inside diameter surface 12b, and a pocket-side surface 12c of the reinforcing member 12 are covered with the circular main part 10, and a surface 12d thereof opposite to the pocket side is exposed.Type: ApplicationFiled: November 20, 2006Publication date: September 3, 2009Applicant: NSK LTD.Inventors: Takiyoshi Yamada, Takahiko Uchiyama, Kenichi Iso, Junji Ono, Masahiro Harunaga, Kinji Yukawa, Makoto Yasuda, Jianjun Zhan, Nariaki Aihara
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Patent number: 7402550Abstract: A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.Type: GrantFiled: July 28, 2004Date of Patent: July 22, 2008Assignee: NSK Ltd.Inventor: Kenichi Iso
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Publication number: 20070206892Abstract: A grease composition having an apparent viscosity at ?30° C. of 5 to 200 Pa·s is sealed in a rolling bearing which retains a plurality of rolling elements between an inner ring and an outer ring in such a way that the rolling elements can freely roll. Thereby, there is provided a rolling bearing which has a satisfactory lubricating performance and generates less abnormal noise even under a low temperature of around ?40° C.Type: ApplicationFiled: July 19, 2005Publication date: September 6, 2007Applicant: NSK, LTD.Inventors: Kenichi Iso, Yujiro Toda, Yoichi Imamura
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Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
Patent number: 7265080Abstract: The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.Type: GrantFiled: May 20, 2003Date of Patent: September 4, 2007Assignee: NSK Ltd.Inventors: Kenichi Iso, Hirotoshi Miyajima, Katsuaki Denpou, Yujiro Toda, Masahiko Yamazaki, Michiharu Naka, Yasunobu Fujita -
Publication number: 20070173420Abstract: As a grease composition maintaining a low torque over a wide temperature range and further hardly inducing white texture flaking, the present invention provides a grease composition comprising a base oil having a dynamic viscosity at 40° C. of 20 to 50 mm2/s, a urea compound as a thickening agent in an amount of 8 to 30% by weight with respect to total weight of the grease, at least one antirust additive selected from carboxylic acids, carboxylate salts, and ester-based antirust additives in an amount of 0.1 to 10% by weight per single additive with respect to total weight of the grease and in an amount of 0.1 to 15% by weight in total of the additive with respect to total weight of the grease, and a rolling device comprising the grease composition which works with a low torque, hardly induces white texture flaking, and is excellent in durability.Type: ApplicationFiled: February 23, 2004Publication date: July 26, 2007Inventor: Kenichi Iso
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Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
Publication number: 20060252655Abstract: The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.Type: ApplicationFiled: July 6, 2006Publication date: November 9, 2006Inventors: Kenichi Iso, Hirotoshi Miyajima, Katsuaki Denpou, Yujiro Toda, Masahiko Yamazaki, Michiharu Naka, Yasunobu Fujita -
Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
Publication number: 20060252654Abstract: The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.Type: ApplicationFiled: July 6, 2006Publication date: November 9, 2006Inventors: Kenichi Iso, Hirotoshi Miyajima, Katsuaki Denpou, Yujiro Toda, Masahiko Yamazaki, Michiharu Naka, Yasunobu Fujita -
Publication number: 20060230856Abstract: A ball screw (1) as a linear motion device according to the invention has retaining pieces (21) each having two concave surfaces (23) facing adjacent ones of rolling elements (9) respectively. Each of the retaining pieces (21) is disposed between adjacent ones of the rolling elements (9). A carbonitrided layer containing residual austenite of 15-40% by volume is provided in the surface layer of each of the rolling elements (9).Type: ApplicationFiled: May 15, 2006Publication date: October 19, 2006Inventors: Shigeru Okita, Hideyuki Uyama, Susumu Tanaka, Kenichi Iso
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Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
Publication number: 20050261141Abstract: The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.Type: ApplicationFiled: May 20, 2003Publication date: November 24, 2005Inventors: Kenichi Iso, Hirotoshi Miyajima, Katsuaki Denpou, Yujiro Toda, Masahiko Yamazaki, Michiharu Naka, Yasunobu Fujita -
Publication number: 20050250653Abstract: A grease composition comprising a lubricating base oil, at least one diurea compound represented by one of the general formulas (1) to (3) below, a naphthenic acid salt, and succinic acid or a derivative thereof, wherein each of the proportions of the diurea compounds represented by general formulas (1) to (3) satisfies the conditions represented by inequalities (4) and (5) below, and each of the proportions of the naphthenic acid salt and the succinic acid or its derivative is 0.1-10% by mass based on the total amount of the grease composition. [wherein R1 represents a C7-12 aromatic ring-containing hydrocarbon group, R2 represents a C6-15 divalent hydrocarbon group, and R3 represents a cyclohexyl group or a C7-12 alkylcyclohexyl group] 5?W1+W2+W3?35??(4) 0?(W1+0.5×W2)/(W1+W2+W3)?0.55??(5) [wherein W1, W2 and W3 represent the proportions of diurea compounds represented by general formulas (1) to (3), respectively, based on the total amount of the grease composition (% by mass)].Type: ApplicationFiled: May 28, 2003Publication date: November 10, 2005Inventors: Kenichi Iso, Michiharu Naka, Kiyomi Sakamoto, Hirotsugu Kinoshita