Patents by Inventor Hiroshi Takagi
Hiroshi Takagi 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: 10411585Abstract: An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus.Type: GrantFiled: June 8, 2014Date of Patent: September 10, 2019Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.Inventors: Taisuke Katayama, Eiji Yamamoto, Kenji Mitsuda, Hiroshi Takagi, Thomas Bryan Sasada
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Publication number: 20190270377Abstract: A work vehicle is disclosed that includes an elastic support mechanism for supporting an exhaust muffler. The elastic support mechanism includes a support platform member, an elastic cylindrical members and an bar-shaped member. The support platform member is supported by a rear-linking frame bar to adjust a position of the support platform member along one of lateral and longitudinal directions of the body frame. An elastic cylindrical member supported by one of the support platform member and the exhaust muffler. The elastic cylindrical member has an axis extending along the other of the lateral and longitudinal directions, and is supported at a single position, in a direction of the axis, of said one of the support platform member and the exhaust muffler. A bar-shaped member supported by the other of the support platform member and the exhaust muffler is fitted into the elastic cylindrical member to be supported by the elastic cylindrical member.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Inventors: Yoshinori Oyama, Kimihiro Kai, Hiroshi Takagi, Toshiki Ono, Kohta Nakao, Takafumi Komatsu, Kensuke Okabe, Yuki Nakaoka
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Patent number: 10343513Abstract: A work vehicle is disclosed that includes an elastic support mechanism for supporting an exhaust muffler. The elastic support mechanism includes a support platform member, an elastic cylindrical members and an bar-shaped member. The support platform member is supported by a rear-linking frame bar to adjust a position of the support platform member along one of lateral and longitudinal directions of the body frame. An elastic cylindrical member supported by one of the support platform member and the exhaust muffler. The elastic cylindrical member has an axis extending along the other of the lateral and longitudinal directions, and is supported at a single position, in a direction of the axis, of said one of the support platform member and the exhaust muffler. A bar-shaped member supported by the other of the support platform member and the exhaust muffler is fitted into the elastic cylindrical member to be supported by the elastic cylindrical member.Type: GrantFiled: December 4, 2017Date of Patent: July 9, 2019Assignee: Kubota CorporationInventors: Yoshinori Oyama, Kimihiro Kai, Hiroshi Takagi, Toshiki Ono, Kohta Nakao, Takafumi Komatsu, Kensuke Okabe, Yuki Nakaoka
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Patent number: 10323694Abstract: A work vehicle including: a transmission unit that is provided with, on a shaft that is provided in a power transmission path leading from an input shaft to a power transmission shaft but is not a speed change shaft, a gear member that has an engagement recess, and a claw member having an engaging claw that engages with the engagement recess and to which rotational power is transmitted. There are gaps in a rotational direction between the engaging claw and both ends, in the rotational direction, of the engagement recess.Type: GrantFiled: June 14, 2017Date of Patent: June 18, 2019Assignee: Kubota CorporationInventors: Hiroki Bessho, Jun Yoshida, Hiroshi Takagi
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Patent number: 10018665Abstract: A power conversion apparatus includes a power conversion device connected to a 3-phase AC power source, a first fuse positioned on a first phase of the source between the conversion device and the source, a second fuse positioned on a second phase of the source between the conversion device and the source, a first voltage detection device which detects first voltage between a third phase and the first phase of the source on the conversion device side with respect to the first fuse, a second voltage detection device which detects second voltage between the third and second phases of the source on the conversion device side with respect to the second fuse, and a status detection device connected to the first and second voltage devices such that the status device detects status of the first and second fuses based on comparison between detection result of the first and second voltage.Type: GrantFiled: June 19, 2015Date of Patent: July 10, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji Mitsuda, Hiroshi Takagi
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Publication number: 20180163841Abstract: A work vehicle includes a stepless speed changer device having a drive pulley receiving input of power of an engine, a driven pulley, and an endless rotary body wound around and entrained between the the drive pulley and the driven pulley and an accommodating body having an accommodation space for accommodating the drive pulley, the driven pulley and the endless rotary body. The accommodation space includes an air passage for causing air introduced from the outside to flow from the driven pulley side to the drive pulley side to be eventually discharged to the outside.Type: ApplicationFiled: February 6, 2018Publication date: June 14, 2018Inventors: Hiroki Bessho, Noriyasu Honjo, Jun Yoshida, Hiroshi Takagi
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Publication number: 20180154765Abstract: A work vehicle is disclosed that includes an elastic support mechanism for supporting an exhaust muffler. The elastic support mechanism includes a support platform member, an elastic cylindrical members and an bar-shaped member. The support platform member is supported by a rear-linking frame bar to adjust a position of the support platform member along one of lateral and longitudinal directions of the body frame. An elastic cylindrical member supported by one of the support platform member and the exhaust muffler. The elastic cylindrical member has an axis extending along the other of the lateral and longitudinal directions, and is supported at a single position, in a direction of the axis, of said one of the support platform member and the exhaust muffler. A bar-shaped member supported by the other of the support platform member and the exhaust muffler is fitted into the elastic cylindrical member to be supported by the elastic cylindrical member.Type: ApplicationFiled: December 4, 2017Publication date: June 7, 2018Inventors: Yoshinori Oyama, Kimihiro Kai, Hiroshi Takagi, Toshiki Ono, Kohta Nakao, Takafumi Komatsu, Kensuke Okabe, Yuki Nakaoka
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Patent number: 9909659Abstract: A work vehicle includes a stepless speed changer device having a drive pulley receiving input of power of an engine, a driven pulley, and an endless rotary body wound around and entrained between the drive pulley and the driven pulley and an accommodating body having an accommodation space for accommodating the drive pulley, the driven pulley and the endless rotary body. The accommodation space includes an air passage for causing air introduced from the outside to flow from the driven pulley side to the drive pulley side to be eventually discharged to the outside.Type: GrantFiled: May 18, 2016Date of Patent: March 6, 2018Assignee: Kubota CorporationInventors: Hiroki Bessho, Noriyasu Honjo, Jun Yoshida, Hiroshi Takagi
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Patent number: 9906168Abstract: A power converting apparatus is provided. The power converting apparatus includes a power converter configured to output a voltage to a load, and a controller configured to output a PWM signal which is generated in response to a voltage command to the power converter. The power converter includes a plurality of switching elements driven based on the PWM signal. The controller is configured to generate the PWM signal such that a first period during which a zero voltage is outputted and a second period during which a non-zero voltage is outputted are adjusted according to the voltage command. The controller is allowed to output the PWM signal which is set such that one first period and one or more second periods exist within an updating cycle of the voltage command, to the power converter.Type: GrantFiled: April 27, 2015Date of Patent: February 27, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Taisuke Katayama, Hiroshi Takagi
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Publication number: 20180043926Abstract: Disclosed is a vehicle including a steering wheel arranged offset toward one side in a vehicle body right/left direction, and an electric power steering unit. The electric power steering unit includes a link mechanism operably connected to the steering wheel and extending from a right/left center side of the steering wheel toward a vehicle body right/left center side to be operably connected to a wheel side, an assist device for the link mechanism, a control lever arranged adjacent the vehicle body right/left center in the vicinity of the steering wheel, a rotation shaft operably connected to the control lever to be rotated about a right/left axis that extends in the vehicle body right/left direction, and a control cable operably connected to the rotation shaft. A base end portion of the control cable is more offset toward the one side than the assist device.Type: ApplicationFiled: October 6, 2017Publication date: February 15, 2018Inventors: Hiroshi Takagi, Hiroki Bessho, Takafumi Komatsu, Kensuke Okabe, Takeshi Satozono
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Publication number: 20170370422Abstract: A work vehicle including: a transmission unit that is provided with, on a shaft that is provided in a power transmission path leading from an input shaft to a power transmission shaft but is not a speed change shaft, a gear member that has an engagement recess, and a claw member having an engaging claw that engages with the engagement recess and to which rotational power is transmitted. There are gaps in a rotational direction between the engaging claw and both ends, in the rotational direction, of the engagement recess.Type: ApplicationFiled: June 14, 2017Publication date: December 28, 2017Inventors: Hiroki Bessho, Jun Yoshida, Hiroshi Takagi
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Patent number: 9796406Abstract: Disclosed is a vehicle including a steering wheel arranged offset toward one side in a vehicle body right/left direction, and an electric power steering unit. The electric power steering unit includes a link mechanism operably connected to the steering wheel and extending from a right/left center side of the steering wheel toward a vehicle body right/left center side to be operably connected to a wheel side, an assist device for the link mechanism, a control lever arranged adjacent the vehicle body right/left center in the vicinity of the steering wheel, a rotation shaft operably connected to the control lever to be rotated about a right/left axis that extends in the vehicle body right/left direction, and a control cable operably connected to the rotation shaft. A base end portion of the control cable is more offset toward the one side than the assist device.Type: GrantFiled: May 26, 2016Date of Patent: October 24, 2017Assignee: Kubota CorporationInventors: Hiroshi Takagi, Hiroki Bessho, Takafumi Komatsu, Kensuke Okabe, Takeshi Satozono
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Patent number: 9660193Abstract: It is an object of the present invention to provide a material composition for a bulk-heterojunction-type organic photoelectric conversion layer having high photoelectric conversion efficiency and durability through formation of a stable phase-separated structure by drying in a short time with high productivity and to provide an organic photoelectric conversion element, a method of producing the organic photoelectric conversion element, and a solar cell. The material composition for an organic photoelectric conversion layer contains at least a p-type conjugated polymer semiconductor material being a copolymer having a main chain including an electron-donating group and an electron-withdrawing group, an n-type organic semiconductor material having electron acceptability, and a solvent. The solvent is represented by a general formula (1).Type: GrantFiled: January 10, 2012Date of Patent: May 23, 2017Assignee: KONICA MINOLTA, INC.Inventors: Hiroshi Takagi, Hirohide Ito
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Patent number: 9625710Abstract: The optical element is a long optical element obtained by detaching a long main body part connected to a runner part via a gate part including an optical part from the gate part and chipping the detached main body, the optical part including at least a first optical surface to allow light to pass there through or to reflect light. The first optical surface has a curved surface that is curved on the short direction at least at the longitudinal end, while the first edge of the first optical surface side on the end surface of gate part side in the main body part is curved according to the curved surface example of the first optical surface. The boundary surface between the main body part and the gate part is formed so as to be narrower than the end surface of the gate part side of the main body part.Type: GrantFiled: January 23, 2013Date of Patent: April 18, 2017Assignee: KONICA MINOLTA, INC.Inventors: Atsushi Naito, Hiroshi Takagi, Shinichiro Hara, Toshiyuki Majima, Naoki Kaneko, Takao Arakawa
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Patent number: 9611461Abstract: L-cysteine can be produced inexpensively and efficiently by using a bacterium belonging to the family Enterobacteriaceae modified to reduce activity of O-acetylserine sulfhydrylase B thereof, the bacterium being modified so that the C terminal region of its thiosulfate-binding protein is deleted, and the bacterium having an increased ability to produce L-cysteine in the presence of a sulfate.Type: GrantFiled: March 14, 2014Date of Patent: April 4, 2017Assignee: National University Corporation Nara Institute of Science and TechnologyInventors: Iwao Ohtsu, Takeshi Nakatani, Ai Tamakoshi, Sayo Takahashi, Hiroshi Takagi
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Patent number: 9608213Abstract: A method for manufacturing a functional material including a porous metal complex with nanoparticles included therein, the method including a configuration of adding more than one particle constituent raw material constituting the nanoparticles and a porous metal complex to a solvent, and then synthesizing nanoparticles included in the porous metal complex by heating to a desired temperature. In addition, provided is an electronic component including an electronic component element using a functional material including a porous metal complex with nanoparticles included therein.Type: GrantFiled: June 27, 2014Date of Patent: March 28, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takuo Wakaoka, Koji Murayama, Hiroshi Takagi, Haruya Miyata, Yoshihiko Takano, Yasuaki Kainuma
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Publication number: 20170002920Abstract: A work vehicle includes a stepless speed changer device having a drive pulley receiving input of power of an engine, a driven pulley, and an endless rotary body wound around and entrained between the the drive pulley and the driven pulley and an accommodating body having an accommodation space for accommodating the drive pulley, the driven pulley and the endless rotary body. The accommodation space includes an air passage for causing air introduced from the outside to flow from the driven pulley side to the drive pulley side to be eventually discharged to the outside.Type: ApplicationFiled: May 18, 2016Publication date: January 5, 2017Inventors: Hiroki Bessho, Noriyasu Honjo, Jun Yoshida, Hiroshi Takagi
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Publication number: 20170001658Abstract: Disclosed is a vehicle including a steering wheel arranged offset toward one side in a vehicle body right/left direction, and an electric power steering unit. The electric power steering unit includes a link mechanism operably connected to the steering wheel and extending from a right/left center side of the steering wheel toward a vehicle body right/left center side to be operably connected to a wheel side, an assist device for the link mechanism, a control lever arranged adjacent the vehicle body right/left center in the vicinity of the steering wheel, a rotation shaft operably connected to the control lever to be rotated about a right/left axis that extends in the vehicle body right/left direction, and a control cable operably connected to the rotation shaft. A base end portion of the control cable is more offset toward the one side than the assist device.Type: ApplicationFiled: May 26, 2016Publication date: January 5, 2017Inventors: Hiroshi Takagi, Hiroki Bessho, Takafumi Komatsu, Kensuke Okabe, Takeshi Satozono
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Patent number: 9510601Abstract: The present invention provides yeast having increased resistance to freezing stress in which POG1 gene is inactivated, a method for producing such yeast, and a method for using such yeast in food production.Type: GrantFiled: November 20, 2012Date of Patent: December 6, 2016Assignee: NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hiroshi Takagi, Yu Sasano, Jun Shima, Yutaka Haitani
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Publication number: 20160272952Abstract: L-cysteine can be produced inexpensively and efficiently by using a bacterium belonging to the family Enterobacteriaceae modified to reduce activity of O-acetylserine sulfhydrylase B thereof, the bacterium being modified so that the C terminal region of its thiosulfate-binding protein is deleted, and the bacterium having an increased ability to produce L-cysteine in the presence of a sulfate.Type: ApplicationFiled: March 14, 2014Publication date: September 22, 2016Applicant: National University Corporation Nara Institute of Science and TechnologyInventors: Iwao Ohtsu, Takeshi Nakatani, Ali Tamakoshi, Sayo Takahashi, Hiroshi Takagi