Patents by Inventor Shuji Ichijo
Shuji Ichijo 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: 9353830Abstract: A link-plate chain for a continuously variable transmission, having a plurality of link plates interconnected in a chain circumferential direction and a chain transverse direction to be wound around an input pulley and an output pulley, by a plurality of rocker pins inserted to extend in the traverse direction through pin holes formed in the link plates, and attached with retainer pins for preventing detachment of the link plates from the rocker pins at ends in the transverse direction of the rocker pins, wherein: the retainer pins of the inside rocker pins sandwiched between the outer side rocker pins in the longitudinal direction among the rocker pins inserted through the link plates located at outermost ends in the transverse direction are configured to be attached more outward in the transverse direction than the retainer pins of the front and rear end side rocker pins.Type: GrantFiled: March 12, 2015Date of Patent: May 31, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Shuji Ichijo, Takashi Nakamura
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Publication number: 20150267775Abstract: A link-plate chain for a continuously variable transmission, having a plurality of link plates interconnected in a chain circumferential direction and a chain transverse direction to be wound around an input pulley and an output pulley, by a plurality of rocker pins inserted to extend in the traverse direction through pin holes formed in the link plates, and attached with retainer pins for preventing detachment of the link plates from the rocker pins at ends in the transverse direction of the rocker pins, wherein: the retainer pins of the inside rocker pins sandwiched between the outer side rocker pins in the longitudinal direction among the rocker pins inserted through the link plates located at outermost ends in the transverse direction are configured to be attached more outward in the transverse direction than the retainer pins of the front and rear end side rocker pins.Type: ApplicationFiled: March 12, 2015Publication date: September 24, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Shuji Ichijo, Takashi Nakamura
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Patent number: 9021851Abstract: An oil hole penetrating through a partition wall of a pulley cover of a continuously variable transmission is formed in a direction perpendicular to an axis of the pulley cover. The pulley cover, having first and second hydraulic oil chambers through which a movable pulley half of a pulley of the continuously variable transmission is biased toward a fixed pulley half thereof, is manufactured in the step of machining a metal sheet. The manufacturing step includes a first step of press-forming the annular partition wall of the pulley cover, a second step of opening the oil hole in the partition wall, the oil hole allowing communication between the first and second hydraulic oil chambers, and a third step of press-forming the peripheral wall of the second hydraulic oil chamber at an outer side, in a radial direction, of the partition wall.Type: GrantFiled: May 23, 2012Date of Patent: May 5, 2015Assignees: Honda Motor Co., Ltd., G-Tekt CorporationInventors: Souichirou Sumida, Shuji Ichijo, Toru Yagasaki, Yukio Yuzawa, Kazuhiko Isoe
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Publication number: 20120304726Abstract: An oil hole penetrating through a partition wall of a pulley cover of a continuously variable transmission is formed in a direction perpendicular to an axis of the pulley cover. The pulley cover, having first and second hydraulic oil chambers through which a movable pulley half of a pulley of the continuously variable transmission is biased toward a fixed pulley half thereof, is manufactured in the step of machining a metal sheet. The manufacturing step includes a first step of press-forming the annular partition wall of the pulley cover, a second step of opening the oil hole in the partition wall, the oil hole allowing communication between the first and second hydraulic oil chambers, and a third step of press-forming the peripheral wall of the second hydraulic oil chamber at an outer side, in a radial direction, of the partition wall.Type: ApplicationFiled: May 23, 2012Publication date: December 6, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Souichirou Sumida, Shuji Ichijo, Toru Yagasaki, Yukio Yuzawa, Kazuhiko Isoe
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Patent number: 6763743Abstract: A flywheel device for a prime mover can be made compact in axial size and has an effectively increased inertial mass. The flywheel device includes a drive plate and a mass ring. The drive plate has an annular projection and is attached to a crankshaft concentric with the crankshaft. The mass ring has an annular recess and is concentrically attached to the drive plate by the annular recess being fitted on the annular projection of the drive plate. The flywheel device transmits torque from an engine as the prime mover to the input shaft of an automatic transmission while reducing variation in the torque.Type: GrantFiled: April 17, 2002Date of Patent: July 20, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Naoto Watanabe, Shuji Ichijo, Makoto Sumi, Hiroshi Saotome
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Patent number: 6655232Abstract: A hydraulic controller comprises a first hydraulic control valve 60, which is mounted on an end face S1 of a first housing unit H1, an oil pump 50, which is mounted on the first hydraulic control valve 60, and an input shaft 1 of a transmission, which shaft is provided rotatably in a transmission housing. The oil pump 50 comprises an outer rotor 52 and an inner rotor 53 in a pump casing 51 and 54, which is mounted on the valve body of the first hydraulic control valve 60. The input shaft 1, which is inserted into the pump casing and fit into the inner rotor 53, rotates and drives the inner rotor. The oil pump 50 sucks oil from the bottom of the transmission housing and supplies it through the mounted part into the first hydraulic control valve 60.Type: GrantFiled: April 19, 2002Date of Patent: December 2, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Atsushi Fujikawa, Shuji Ichijo, Yukihiko Fukushima, Makoto Sumi, Mitsuro Ohtaki, Katsuyuki Narai, Takashi Hasegawa, Shuichi Fujimoto
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Publication number: 20020170380Abstract: There is provided a flywheel device for a prime mover, which can be made compact in the axial size thereof and have an effectively increased inertial mass. The flywheel device is comprised of a drive plate and a mass ring. The drive plate has an annular projection and is attached to a crankshaft in a manner concentric with the crankshaft. The mass ring has an annular recess and is concentrically attached to the drive plate by the annular recess being fitted on the annular projection of the drive plate. The flywheel device transmits torque from an engine as the prime mover to the input shaft of an automatic transmission while reducing variation in the torque.Type: ApplicationFiled: April 17, 2002Publication date: November 21, 2002Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Naoto Watanabe, Shuji Ichijo, Makoto Sumi, Hiroshi Saotome
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Publication number: 20020170383Abstract: A hydraulic controller comprises a first hydraulic control valve 60, which is mounted on an end face S1 of a first housing unit H1, an oil pump 50, which is mounted on the first hydraulic control valve 60, and an input shaft 1 of a transmission, which shaft is provided rotatably in a transmission housing. The oil pump 50 comprises an outer rotor 52 and an inner rotor 53 in a pump casing 51 and 54, which is mounted on the valve body of the first hydraulic control valve 60. The input shaft 1, which is inserted into the pump casing and fit into the inner rotor 53, rotates and drives the inner rotor. The oil pump 50 sucks oil from the bottom of the transmission housing and supplies it through the mounted part into the first hydraulic control valve 60.Type: ApplicationFiled: April 19, 2002Publication date: November 21, 2002Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Atsushi Fujikawa, Shuji Ichijo, Yukihiko Fukushima, Makoto Sumi, Mitsuro Ohtaki, Katsuyuki Narai, Takashi Hasegawa, Shuichi Fujimoto