Patents by Inventor Jin Fukumitsu
Jin Fukumitsu 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: 20230315070Abstract: Included are a first feature quantity conversion unit that converts a plurality of pieces of acquired actual defective product data respectively into actual feature quantities, a predicted feature quantity generation unit that generates a predicted feature quantity group by learning of a feature quantity generation model, a pseudo defective product data generation unit that generates a pseudo defective product data group by learning of an image generation model, a second feature quantity conversion unit that converts the pseudo defective product data group to acquire as a pseudo feature quantity group, a feature quantity distribution comparison unit that compares distributions between the predicted feature quantity group and the pseudo feature quantity group to calculate a feature quantity error as a residual error, and a pseudo defective product data quality determination unit that determines the quality of the generated pseudo defective product data group, based on the feature quantity error.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Inventors: Toshikazu KARUBE, Masahiro KAMIMURA, Jin FUKUMITSU
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Patent number: 9914177Abstract: A round hole machining method and a round-hole machining device in which machining can be accurately performed regardless of the wear of an edge tool. A non-round hole machining device includes: a machining load data acquisition section for obtaining machining load data corresponding to a machining load acting on the cutting edge of a cutting tool when boring a bore in a cylinder block; a machined shape prediction section for predicting a machined shape of the workpiece by utilizing the obtained machining load data and elastic deformation amounts at respective positions on the workpiece; and a motor control section for machining the workpiece so as to form an inverted shape, that is, a shape formed by inverting the predicted machined shape with respect to a target shape.Type: GrantFiled: July 29, 2014Date of Patent: March 13, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Kenji Mori, Jin Fukumitsu, Akihiro Nemoto, Takuro Kidani
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Patent number: 9862034Abstract: A round hole machining method and a round-hole machining device in which machining can be accurately performed regardless of a residual stress caused by casting. An out-of-round hole machining device, which carries out inner diameter machining for a bore in a cast cylinder block includes the following: a stress deformation amount correspondence table that stores, for each portion of the cylinder block, a stress deformation amount based on stress that resides in the cylinder block during casting; a machining shape prediction section that predicts the machining shape on the basis of the stress deformation amount read from the stress deformation amount correspondence table; and a motor control unit that reverses the predicted machining shape with respect to a target shape and carries out reverse machining on a workpiece.Type: GrantFiled: July 29, 2014Date of Patent: January 9, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Jin Fukumitsu, Kenji Mori, Akihiro Nemoto, Takuro Kidani
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Publication number: 20160167138Abstract: A round hole machining method and a round-hole machining device in which machining can be accurately performed regardless of a residual stress caused by casting. An out-of-round hole machining device, which carries out inner diameter machining for a bore in a cast cylinder block includes the following: a stress deformation amount correspondence table that stores, for each portion of the cylinder block, a stress deformation amount based on stress that resides in the cylinder block during casting; a machining shape prediction section that predicts the machining shape on the basis of the stress deformation amount read from the stress deformation amount correspondence table; and a motor control unit that reverses the predicted machining shape with respect to a target shape and carries out reverse machining on a workpiece.Type: ApplicationFiled: July 29, 2014Publication date: June 16, 2016Applicant: Honda Motor Co., Ltd.Inventors: Jin Fukumitsu, Kenji Mori, Akihiro Nemoto, Takuro Kidani
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Publication number: 20160170401Abstract: A round hole machining method and a round-hole machining device in which machining can be accurately performed regardless of the wear of an edge tool. A non-round hole machining device includes: a machining load data acquisition section for obtaining machining load data corresponding to a machining load acting on the cutting edge of a cutting tool when boring a bore in a cylinder block; a machined shape prediction section for predicting a machined shape of the workpiece by utilizing the obtained machining load data and elastic deformation amounts at respective positions on the workpiece; and a motor control section for machining the workpiece so as to form an inverted shape, that is, a shape formed by inverting the predicted machined shape with respect to a target shape.Type: ApplicationFiled: July 29, 2014Publication date: June 16, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Kenji Mori, Jin Fukumitsu, Akihiro Nemoto, Takuro Kidani
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Patent number: 8764521Abstract: A plurality of grind-stone-mounts 12 each having a grind stone 15 on its outer side are attached to a holder 11 of a honing head 10 expandably along a radial direction. Each of the grind-stone-mounts 12 is provided with a support part 13 disposed inside along the radial direction, and a grind part 14 including the grind stone 15 and disposed outside along the radial direction. The grind part 14 is swingably attached to the support part 13 through one or more spring members 16 disposed at intervals along an axial direction of the holder 11.Type: GrantFiled: July 1, 2010Date of Patent: July 1, 2014Assignee: Honda Motor Co., Ltd.Inventors: Kazushi Sogawa, Hideo Fujiwara, Kazuya Kodama, Jin Fukumitsu
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Patent number: 8424426Abstract: A non-round hole boring device capable of machining a work in a desired cross sectional shape by a simple configuration. The non-round hole boring device (1) comprises cylindrical arbors (11, 21), shafts (12, 22) stored in the arbors (11, 21), respectively, a cutting tool (13) attached to the outer peripheral surface of the arbor (11), a cam (121) formed on the shaft (12) and pressing the cutting tool (13), a first rotary encoder (252), a second rotary encoder (241), an arbor motor (23) for rotatingly driving the arbors (11, 21), a shaft motor (24) for rotatingly driving the shafts (12, 22), and a controller (40). The controller (40) advances or retards the phases of the rotating angles of the shafts (12, 22) relative to the phases of the rotating angles of the arbors (11, 21), respectively, while rotating the arbors (11, 21) and the shafts (12, 22) in synchronism with each other, respectively.Type: GrantFiled: March 4, 2009Date of Patent: April 23, 2013Assignee: Honda Motor Co., Ltd.Inventors: Masao Kume, Jin Fukumitsu, Naoya Matsunaga, Keisuke Takahashi
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Publication number: 20120094583Abstract: A plurality of grind-stone-mounts 12 each having a grind stone 15 on its outer side are attached to a holder 11 of a honing head 10 expandably along a radial direction. Each of the grind-stone-mounts 12 is provided with a support part 13 disposed inside along the radial direction, and a grind part 14 including the grind stone 15 and disposed outside along the radial direction. The grind part 14 is swingably attached to the support part 13 through one or more spring members 16 disposed at intervals along an axial direction of the holder 11.Type: ApplicationFiled: July 1, 2010Publication date: April 19, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Kazushi Sogawa, Hideo Fujiwara, Kazuya Kodama, Jin Fukumitsu
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Publication number: 20110023667Abstract: A non-round hole boring device capable of machining a work in a desired cross sectional shape by a simple configuration. The non-round hole boring device (1) comprises cylindrical arbors (11, 21), shafts (12, 22) stored in the arbors (11, 21), respectively, a cutting tool (13) attached to the outer peripheral surface of the arbor (11), a cam (121) formed on the shaft (12) and pressing the cutting tool (13), a first rotary encoder (252), a second rotary encoder (241), an arbor motor (23) for rotatingly driving the arbors (11, 21), a shaft motor (24) for rotatingly driving the shafts (12, 22), and a controller (40). The controller (40) advances or retards the phases of the rotating angles of the shafts (12, 22) relative to the phases of the rotating angles of the arbors (11, 21), respectively, while rotating the arbors (11, 21) and the shafts (12, 22) in synchronism with each other, respectively.Type: ApplicationFiled: March 3, 2009Publication date: February 3, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Masao Kume, Jin Fukumitsu, Naoya Matsunaga, Keisuke Takahashi