Patents by Inventor Kenichi Hirosaki
Kenichi Hirosaki 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: 11235536Abstract: A protrusion on a first member made of synthetic resin wherein a laser beam is applied to a side surface of the protrusion in a state in which a top surface of the protrusion of the first member is abutted against a second member made of synthetic resin, so as to melt at least the entire top surface of the protrusion and melt a portion of the second member in contact with the protrusion by heat of the melted top surface of the protrusion, followed by solidification of the melted portions, whereby the first member and the second member are welded together.Type: GrantFiled: August 13, 2018Date of Patent: February 1, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, ISHIKAWA PREFECTURE, TORAY INDUSTRIES, INC., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, SUZUKI MOTOR CORPORATION, TEIJIN LIMITEDInventors: Takayuki Mori, Kenichi Hirosaki, Wataru Okumura, Daisuke Mori, Yoshihiro Iwano, Kazuaki Amaoka
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Publication number: 20210162678Abstract: A protrusion on a first member made of synthetic resin wherein a laser beam is applied to a side surface of the protrusion in a state in which a top surface of the protrusion of the first member is abutted against a second member made of synthetic resin, so as to melt at least the entire top surface of the protrusion and melt a portion of the second member in contact with the protrusion by heat of the melted top surface of the protrusion, followed by solidification of the melted portions, whereby the first member and the second member are welded together.Type: ApplicationFiled: August 13, 2018Publication date: June 3, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, TORAY INDUSTRIES, INC., ISHIKAWA PREFECTURE, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, SUZUKI MOTOR CORPORATION, TEIJIN LIMITEDInventors: Takayuki MORI, Kenichi HIROSAKI, Wataru OKUMURA, Daisuke MORI, Yoshihiro IWANO, Kazuaki AMAOKA
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Patent number: 9099640Abstract: Electrodes (7, 8, 9), having curved sections in the shape of the outline thereof, are disposed in areas of a rectangular plate-shaped piezoelectric transducer element (1) in which the strain in the natural mode of vibration is large. The electrodes (7, 8) which excite a bending vibration are disposed in areas in which the strain in the bending natural mode is at least a predetermined value, and the outline curved sections of the electrodes (7, 8) are shaped so as to follow along strain contours (3, 4), and the electrode (9) which excites a stretching vibration is disposed in an area in which the strain in the stretching natural mode is at least a predetermined value, thus providing a transducer for an ultrasonic motor which aims to reduce transducer loss (increasing vibration efficiency), and improve transducer durability and reliability.Type: GrantFiled: January 26, 2011Date of Patent: August 4, 2015Assignees: ISHIKAWA PREFECTURE, NIKKO COMPANY, TOKYO INSTITUTE OF TECHNOLOGYInventors: Masahiro Takano, Kenichi Hirosaki, Yuta Yoshida, Takuya Nagata, Shou Makino, Satoru Ichimura, Takashi Yoshida, Masayuki Ishida, Hiroshi Kawai, Mikio Takimoto, Kentaro Nakamura
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Patent number: 8531091Abstract: A holding device for a piezoelectric vibrator including a support member (11) for separately accommodating a piezoelectric vibrator (1), a first plate spring member (13) which extends from a proximal end fixedly bonded to one side of the support member (11) so as to sandwich opposing sides of the piezoelectric vibrator (1) and is folded back to be fixedly bonded to the piezoelectric vibrator, and a second plate spring member (18) which extends from a proximal end fixedly bonded to another side of the support member (11) so as to sandwich the opposing sides of the piezoelectric vibrator (1) and is folded back to be fixedly bonded to the piezoelectric vibrator. The first plate spring member (13) and the second plate spring member (18) are integrated at portions fixedly bonded to the piezoelectric vibrator (1).Type: GrantFiled: October 30, 2008Date of Patent: September 10, 2013Assignees: Nikko Company, Ishikawa PrefectureInventors: Takashi Yoshida, Mikio Takimoto, Masahiro Takano, Kenichi Hirosaki
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Publication number: 20120314269Abstract: A piezoelectric actuator mechanism including: a screw-driven feeding mechanism that has a feed screw (11) and a feed screw nut (14); a disc-shaped rotor (17) mounted on the rear-end face of the feed screw nut (14); an ultrasonic motor (18) having a piezoelectric vibrator (19) that comes in contact with the circumference face of the rotor (17); and a driven mounting portion that is pressed against the leading end of the feed screw 11 by spring force, and displaced and positioned by the feeding operation of the feed screw. The driven mounting portion can be made to be a mirror holder (1) for use in an optical system, or a movable table (21) of a linear stage.Type: ApplicationFiled: January 26, 2011Publication date: December 13, 2012Applicants: ISHIKAWA PREFECTURE, TOKYO INSTITUTE OF TECHNOLOGY, NIKKO COMPANY, SIGMA KOKI CO., LTDInventors: Masahiro Takano, Kenichi Hirosaki, Ryuji Shintani, Yuta Yoshida, Toshiharu Minamikawa, Kouichi Nakano, Takuya Nagata, Shou Makino, Satoru Ichimura, Takashi Yoshida, Masayuki Ishida, Hiroshi Kawai, Mikio Takimoto, Kentaro Nakamura
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Publication number: 20120293043Abstract: Electrodes (7, 8, 9), having curved sections in the shape of the outline thereof, are disposed in areas of a rectangular plate-shaped piezoelectric transducer element (1) in which the strain in the natural mode of vibration is large. The eletrodes (7, 8) which excite a bending vibration are disposed in areas in which the strain in the bending natural mode is at least a predetermined value, and the outline curved sections of the electrodes (7, 8) are shaped so as to follow along strain contours (3, 4), and the electrode (9) which excites a stretching vibration is disposed in an area in which the strain in the stretching natural mode is at least a predetermined value, thus providing a transducer for an ultrasonic motor which aims to reduce transducer loss (increasing vibration efficiency), and improve transducer durability and reliability.Type: ApplicationFiled: January 26, 2011Publication date: November 22, 2012Applicants: ISHIKAWA PREFECTURE, TOKYO INSTITUTE OF TECHNOLOGY, NIKKO COMPANY, SIGMA KOKI CO., LTDInventors: Masahiro Takano, Kenichi Hirosaki, Yuta Yoshida, Takuya Nagata, Shou Makino, Satoru Ichimura, Takashi Yoshida, Masayuki Ishida, Hiroshi Kawai, Mikio Takimoto, Kentaro Nakamura
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Publication number: 20110133606Abstract: An object is to provide a holding device for a piezoelectric vibrator, which eliminates vibration energy loss and a change in vibration characteristics, and is capable of supplying stable output with high efficiency. The holding device for a piezoelectric vibrator of the present invention includes: a support member (11) of a frame shape or a box shape for separately accommodating a piezoelectric vibrator (1); and a plate spring structure (12) interposed between sides of the support member (11) and the piezoelectric vibrator (1).Type: ApplicationFiled: October 30, 2008Publication date: June 9, 2011Applicants: NIKKO COMPANY, ISHIKAWA PREFECTUREInventors: Takashi Yoshida, Mikio Takimoto, Masahiro Takano, Kenichi Hirosaki