Patents by Inventor Daisuke Hamasaki
Daisuke Hamasaki 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: 20240120412Abstract: Provided is a semiconductor device comprising a semiconductor substrate provided with a drift region of a first conductivity type, wherein the substrate includes: an active portion; and a trench portion provided in the active portion at an upper surface of the substrate, the active portion includes: a first region in which trench portions including the trench portion are arrayed at a first trench interval in an array direction; and a second region in which trench portions including the trench portion are arrayed at a second trench interval greater than the first trench interval in the array direction, the first region includes a first bottom region of a second conductivity type provided over bottoms of at least two trench portions of the trench portions, and the second region includes a second bottom region of the second conductivity type provided at a bottom of one trench portion of the trench portions.Type: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Inventors: Seiji NOGUCHI, Yosuke SAKURAI, Yoshihiro IKURA, Ryutaro HAMASAKI, Daisuke OZAKI
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Patent number: 11181048Abstract: A throttle device, comprising: a throttle valve (13) disposed in a plurality of intake passages (12) of a throttle body (11); a throttle shaft (14) supporting the throttle valve (13); a motor (15) for driving the throttle valve (13) to open and close through the throttle shaft (14); a rotation transmission mechanism (20) interposed between the motor (15) and the throttle shaft (14); and a position sensor to detect a displacement in the rotation transmission mechanism (20). The rotation transmission mechanism (20) includes a pinion (21) driven by the motor (15) and a control gear (23) interlocked with the pinion (21) and integrally connected to the throttle shaft (14). The position sensor (30) to detect an angular displacement of the control gear (23) and the rotation transmission mechanism (20) are disposed between the plurality of intake passages 12.Type: GrantFiled: January 17, 2019Date of Patent: November 23, 2021Assignee: MIKUNI CORPORATIONInventor: Daisuke Hamasaki
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Patent number: 10895204Abstract: A throttle device, including: a throttle valve (13) disposed in a plurality of intake passages (12) of a throttle body (11); a throttle shaft (14) supporting the throttle valve (13); a motor (15) for driving the throttle valve (13) to open and close through the throttle shaft (14); a rotation transmission mechanism (20) interposed between the motor (15) and the throttle shaft (14); and a position sensor to detect a displacement in the rotation transmission mechanism (20). The rotation transmission mechanism (20) is disposed at a position where the first and the second throttle bodies (11f, 11s) are adjacent, the motor (15) is disposed within an installation width Ws of either one of the first and the second throttle bodies (11f, 11s), and the throttle opening degree sensor (30) is disposed within an installation width Wt of the other one of the first and the second throttle bodies (11f, 11s).Type: GrantFiled: January 17, 2019Date of Patent: January 19, 2021Assignee: Mikuni CorporationInventor: Daisuke Hamasaki
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Publication number: 20190277203Abstract: A throttle device, including: a throttle valve (13) disposed in a plurality of intake passages (12) of a throttle body (11); a throttle shaft (14) supporting the throttle valve (13); a motor (15) for driving the throttle valve (13) to open and close through the throttle shaft (14); a rotation transmission mechanism (20) interposed between the motor (15) and the throttle shaft (14); and a position sensor to detect a displacement in the rotation transmission mechanism (20). The rotation transmission mechanism (20) is disposed at a position where the first and the second throttle bodies (11f, 11s) are adjacent, the motor (15) is disposed within an installation width Ws of either one of the first and the second throttle bodies (11f, 11s), and the throttle opening degree sensor (30) is disposed within an installation width Wt of the other one of the first and the second throttle bodies (11f, 11s).Type: ApplicationFiled: January 17, 2019Publication date: September 12, 2019Applicant: Mikuni CorporationInventor: Daisuke HAMASAKI
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Publication number: 20190226408Abstract: A throttle device, comprising: a throttle valve (13) disposed in a plurality of intake passages (12) of a throttle body (11); a throttle shaft (14) supporting the throttle valve (13); a motor (15) for driving the throttle valve (13) to open and close through the throttle shaft (14); a rotation transmission mechanism (20) interposed between the motor (15) and the throttle shaft (14); and a position sensor to detect a displacement in the rotation transmission mechanism (20). The rotation transmission mechanism (20) includes a pinion (21) driven by the motor (15) and a control gear (23) interlocked with the pinion (21) and integrally connected to the throttle shaft (14). The position sensor (30) to detect an angular displacement of the control gear (23) and the rotation transmission mechanism (20) are disposed between the plurality of intake passages 12.Type: ApplicationFiled: January 17, 2019Publication date: July 25, 2019Applicant: MIKUNI CORPORATIONInventor: Daisuke HAMASAKI
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Patent number: 7861687Abstract: A compact multiple throttle device where multiple throttle shafts are driven by a single drive force. A throttle device includes a first throttle shaft to which a first throttle body and a third throttle body are fixed and also includes a second throttle shaft to which a second throttle body and a fourth throttle body are fixed. The first throttle shaft and the second throttle shaft are parallel to each other. The third throttle body and the fourth throttle body are integrally coupled to each other in a gear case. In the inside of the gear case, a motor for driving the first throttle shaft and the second throttle shaft is arranged. Further, first to sixth gears for transmitting drive force of the motor to the first throttle shaft and the second throttle shaft are included.Type: GrantFiled: January 29, 2010Date of Patent: January 4, 2011Assignee: Mikuni CorporationInventors: Daisuke Hamasaki, Atsushi Osanai
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Publication number: 20100132663Abstract: A compact multiple throttle device where multiple throttle shafts are driven by a single drive force. A throttle device includes a first throttle shaft to which a first throttle body and a third throttle body are fixed and also includes a second throttle shaft to which a second throttle body and a fourth throttle body are fixed. The first throttle shaft and the second throttle shaft are parallel to each other. The third throttle body and the fourth throttle body are integrally coupled to each other in a gear case. In the inside of the gear case, a motor for driving the first throttle shaft and the second throttle shaft is arranged. Further, first to sixth gears for transmitting drive force of the motor to the first throttle shaft and the second throttle shaft are included.Type: ApplicationFiled: January 29, 2010Publication date: June 3, 2010Applicant: MIKUNI CORPORATIONInventors: Daisuke Hamasaki, Atsushi Osanai