Patents by Inventor Yoshitaka Ishimaru
Yoshitaka Ishimaru 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: 10830300Abstract: A vehicle drum brake including: a pair of brake shoes arranged to be expanded on a backing plate; a first parking lever disposed to rotate around a predetermined mounting shaft positioned at one end portion of one of the brake shoes; a second parking lever made up of a member different from the first parking lever, disposed to rotate around the mounting shaft, and coupled to and rotated together with the first parking lever; and a strut including a first strut member engaged with the first and second parking levers, the first and second parking levers are coupled to each other by a coupling pin so as to be engaged with the first strut member at the same time.Type: GrantFiled: May 23, 2017Date of Patent: November 10, 2020Assignees: HOSEI BRAKE INDUSTRY CO., LTD., ADVICS CO., LTD.Inventors: Satoru Shintani, Koji Mori, Kenichi Myojo, Hiroshi Hasegawa, Yoshitaka Ishimaru, Keiichi Tsurumi
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Publication number: 20190293136Abstract: A vehicle drum brake including: a pair of brake shoes arranged to be expanded on a backing plate; a first parking lever disposed to rotate around a predetermined mounting shaft positioned at one end portion of one of the brake shoes; a second parking lever made up of a member different from the first parking lever, disposed to rotate around the mounting shaft, and coupled to and rotated together with the first parking lever; and a strut including a first strut member engaged with the first and second parking levers, the first and second parking levers are coupled to each other by a coupling pin so as to be engaged with the first strut member at the same time.Type: ApplicationFiled: May 23, 2017Publication date: September 26, 2019Applicants: HOSEI BRAKE INDUSTRY CO., LTD., ADVICS CO., LTD.Inventors: Satoru SHINTANI, Koji MORI, Kenichi MYOJO, Hiroshi HASEGAWA, Yoshitaka ISHIMARU, Keiichi TSURUMI
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Patent number: 9822832Abstract: A disc brake device includes flat springs assembled in a support body and holding the brake pad back plates. The flat springs have a C-shaped part provided with: a connection surface part comprising a pad-receiving surface part; an outer circumferential surface part extending along the rotor circumferential direction from the end region of the connection surface part in the rotor radially outward direction; and an inner circumferential surface part extending along the rotor circumferential direction from the end region of the connection surface part in the rotor radially inward direction. Each flat spring also has a tongue-shaped part that: extends towards the connection surface part from the tip region of the inner circumferential surface part in the rotor circumferential direction; elastically engages an inner circumferential wall of a recess at a tip region of the tongue-shaped part; and biases the pad-receiving surface part towards a base wall of the recess.Type: GrantFiled: April 24, 2014Date of Patent: November 21, 2017Assignee: ADVICS CO., LTD.Inventors: Yuichi Takeo, Yoshitaka Ishimaru, Yosuke Kamiya, Yohei Komizo
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Publication number: 20160084329Abstract: A disc brake device includes flat springs assembled in a support body and holding the brake pad back plates. The flat springs have a C-shaped part provided with: a connection surface part comprising a pad-receiving surface part; an outer circumferential surface part extending along the rotor circumferential direction from the end region of the connection surface part in the rotor radially outward direction; and an inner circumferential surface part extending along the rotor circumferential direction from the end region of the connection surface part in the rotor radially inward direction. Each flat spring also has a tongue-shaped part that: extends towards the connection surface part from the tip region of the inner circumferential surface part in the rotor circumferential direction; elastically engages an inner circumferential wall of a recess at a tip region of the tongue-shaped part; and biases the pad-receiving surface part towards a base wall of the recess.Type: ApplicationFiled: April 24, 2014Publication date: March 24, 2016Applicant: ADVICS CO., LTD.Inventors: Yuichi TAKEO, Yoshitaka ISHIMARU, Yosuke KAMIYA, Yohei KOMIZO
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Patent number: 7637332Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: GrantFiled: December 18, 2007Date of Patent: December 29, 2009Assignee: Kanzaki Kokyukoki Mfg., Co., Ltd.Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Patent number: 7516685Abstract: There is provided a PTO transmission structure including a PTO driving shaft operatively connected to a driving source, a PTO driven shaft arranged in a downstream side in a transmission direction of the PTO driving shaft, a PTO clutch unit for selectively performing power transmission/power interruption from the PTO driving shaft to the PTO driven shaft, and a transmission case for supporting the PTO driving shaft and the PTO driven shaft and for accommodating the PTO clutch unit. The transmission case has a case main body which includes a first wall having a first hole for supporting the PTO driving shaft, and a second wall having a second hole for supporting the PTO driven shaft, the second wall being spaced apart from the first wall so as to define a first accommodating space to position the PTO clutch unit between the first wall and the second wall.Type: GrantFiled: February 3, 2005Date of Patent: April 14, 2009Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Tomoyuki Ebihara, Rei Maeda, Hirohiko Kawada, Toshiyuki Hasegawa, Yoshitaka Ishimaru, Tomoyuki Tsuji
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Patent number: 7422077Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission disposed between a differential gear unit and an HST and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: GrantFiled: March 20, 2006Date of Patent: September 9, 2008Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Patent number: 7398853Abstract: In a frame structure of a vehicle that includes a flywheel housing, an intermediate housing and a transmission case that are connected to each other along a longitudinal axis of the vehicle to constitute a vehicle frame, the intermediate housing has a hollow shape with a first end and a second end located along the longitudinal axis of the vehicle, the first end having an abutting surface against which the second end of the flywheel housing abuts, a support surface located radially inwardly of the abutting surface so as to support the forward/rearward movement switching unit, and an opening surrounded by the support surface, the opening serving as a first-end opening of the intermediate housing along the longitudinal axis of the vehicle. The abutting surface and the support surface along the longitudinal axis of the vehicle are located so that at least a portion of the forward/rearward movement switching unit is accommodated within the flywheel housing.Type: GrantFiled: December 10, 2003Date of Patent: July 15, 2008Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Kazuhiko Ohtsuki, Toshiyuki Hasegawa, Atsuo Yoshina, Yoshitaka Ishimaru
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Publication number: 20080152517Abstract: A multiple pump unit is used for operating a plurality of actuators, and includes a plurality of pump shafts and a plurality of hydraulic pumps. The plurality of pump shafts is driven by an electric motor. The plurality of hydraulic pumps is driven by the plurality of pump shafts. Pressurized oil for operating the plurality of actuators is fed out from the plurality of hydraulic pumps.Type: ApplicationFiled: December 20, 2007Publication date: June 26, 2008Applicant: KANZAKI KOKYUKOKI MFG. CO., LTD.Inventors: Norihiro ISHII, Yoshitaka ISHIMARU
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Publication number: 20080098851Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: ApplicationFiled: December 18, 2007Publication date: May 1, 2008Applicant: Kanzaki Kokyukoki Mfg., Co., Ltd.Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Patent number: 7275372Abstract: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supportinType: GrantFiled: November 29, 2006Date of Patent: October 2, 2007Inventors: Yoshitaka Ishimaru, Shigenori Sakikawa, Shinya Sakakura
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Publication number: 20070072728Abstract: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supportinType: ApplicationFiled: November 29, 2006Publication date: March 29, 2007Inventors: Yoshitaka Ishimaru, Shigenori Sakikawa, Shinya Sakakura
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Patent number: 7150693Abstract: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supportinType: GrantFiled: September 17, 2004Date of Patent: December 19, 2006Inventors: Yoshitaka Ishimaru, Shigenori Sakikawa, Shinya Sakakura
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Patent number: 7140457Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: GrantFiled: July 19, 2004Date of Patent: November 28, 2006Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Publication number: 20060196709Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: ApplicationFiled: March 20, 2006Publication date: September 7, 2006Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Publication number: 20050172740Abstract: There is provided a PTO transmission structure including a PTO driving shaft operatively connected to a driving source, a PTO driven shaft arranged in a downstream side in a transmission direction of the PTO driving shaft, a PTO clutch unit for selectively performing power transmission/power interruption from the PTO driving shaft to the PTO driven shaft, and a transmission case for supporting the PTO driving shaft and the PTO driven shaft and for accommodating the PTO clutch unit. The transmission case has a case main body which includes a first wall having a first hole for supporting the PTO driving shaft, and a second wall having a second hole for supporting the PTO driven shaft, the second wall being spaced apart from the first wall so as to define a first accommodating space to position the PTO clutch unit between the first wall and the second wall.Type: ApplicationFiled: February 3, 2005Publication date: August 11, 2005Inventors: Tomoyuki Ebihara, Rei Maeda, Hirohiko Kawada, Toshiyuki Hasegawa, Yoshitaka Ishimaru, Tomoyuki Tsuji
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Publication number: 20050039451Abstract: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supportinType: ApplicationFiled: September 17, 2004Publication date: February 24, 2005Inventors: Yoshitaka Ishimaru, Shigenori Sakikawa, Shinya Sakakura
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Publication number: 20040262054Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal.Type: ApplicationFiled: July 19, 2004Publication date: December 30, 2004Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Patent number: 6830116Abstract: A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power.Type: GrantFiled: April 9, 2003Date of Patent: December 14, 2004Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Yoshitaka Ishimaru, Shusuke Nemoto, Shigenori Sakikawa, Kenichi Takada
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Patent number: 6802183Abstract: A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supportinType: GrantFiled: June 18, 2003Date of Patent: October 12, 2004Inventors: Yoshitaka Ishimaru, Shigenori Sakikawa, Shinya Sakakura