Patents by Inventor Toru Yoshino
Toru Yoshino 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: 8391019Abstract: A connection terminal includes a frame body including first and second support parts positioned to face each other; and a third support part having first and second ends connected to an end of the first support part and an end of the second support part, respectively; first elastic contact pieces provided on the first support part on a first side from which a terminal is to be inserted and having respective first contact parts configured to contact a peripheral surface of the terminal; second elastic contact pieces provided on the second support part on the first side and having respective second contact parts configured to contact the peripheral surface of the terminal and positioned to face the first contact parts; and a third elastic contact piece provided on the frame body on a second side opposite to the first side and configured to contact an end portion of the terminal.Type: GrantFiled: September 3, 2010Date of Patent: March 5, 2013Assignee: Mitsumi Electric Co., Ltd.Inventors: Masatoshi Kuroda, Toru Yoshino, Eiji Yoshida, Hirotaka Yamamoto
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Publication number: 20110058345Abstract: A connection terminal includes a frame body including first and second support parts positioned to face each other; and a third support part having first and second ends connected to an end of the first support part and an end of the second support part, respectively; first elastic contact pieces provided on the first support part on a first side from which a terminal is to be inserted and having respective first contact parts configured to contact a peripheral surface of the terminal; second elastic contact pieces provided on the second support part on the first side and having respective second contact parts configured to contact the peripheral surface of the terminal and positioned to face the first contact parts; and a third elastic contact piece provided on the frame body on a second side opposite to the first side and configured to contact an end portion of the terminal.Type: ApplicationFiled: September 3, 2010Publication date: March 10, 2011Inventors: Masatoshi KURODA, Toru YOSHINO, Eiji YOSHIDA, Hirotaka YAMAMOTO
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Patent number: 7123488Abstract: A DC/DC converter has a transformer having a primary winding, a secondary winding, and an auxiliary winding, a switching transistor connected in series to the primary winding, a control transistor for turning the switching transistor on or off, and a feedback control circuit connected to the control transistor and the auxiliary winding. The feedback control circuit includes a Zener diode having a substantially zero temperature coefficient. The Zener diode has a Zener voltage which lies in a range between 5 volts and 6 volts. In order to cancel a temperature characteristic of the control transistor, the temperature coefficient of the Zener diode is selected.Type: GrantFiled: November 24, 2004Date of Patent: October 17, 2006Assignee: Mitsumi Electric Co., Ltd.Inventors: Masayuki Hirabayashi, Hirotaka Yamamoto, Eiji Yoshida, Toru Yoshino
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Publication number: 20050162872Abstract: A DC/DC converter has a transformer having a primary winding, a secondary winding, and an auxiliary winding, a switching transistor connected in series to the primary winding, a control transistor for turning the switching transistor on or off, and a feedback control circuit connected to the control transistor and the auxiliary winding. The feedback control circuit includes a Zener diode having a substantially zero temperature coefficient. The Zener diode has a Zener voltage which lies in a range between 5 volts and 6 volts. In order to cancel a temperature characteristic of the control transistor, the temperature coefficient of the Zener diode is selected.Type: ApplicationFiled: November 24, 2004Publication date: July 28, 2005Applicant: Mitsumi Electric Co. Ltd.Inventors: Masayuki Hirabayashi, Hirotaka Yamamoto, Eiji Yoshida, Toru Yoshino
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Patent number: 5417313Abstract: A hollow hole is radially formed in a rotor in at least one position on its circumference so that the minimum thickness between an inner surface of the hollow hole and each of the front and rear braking surfaces is selected to be not larger than 3 mm. Alternatively, in a ventilated rotor, at least one of a plurality of holes formed radially in the rotor is shaped into an expanded hole so that the minimum thickness between an inner surface of the hole and each of the front and rear braking surfaces is selected to be not larger than 3 mm. Two rows of small circular holes may be formed in a specific arrangement so as to penetrate a disc rotor. If longitudinal wave vibration is transmitted to the disc rotor, squeals due to an even number order resonance mode, that is, a resonance mode of the second, fourth, sixth order or the like, can be effectively attenuated by specially shaped hollow holes, reduced holes, or two rows of small circular holes formed in a disc rotor.Type: GrantFiled: May 10, 1994Date of Patent: May 23, 1995Assignees: Akebno Brake Industry Co., Ltd., Akebono Research And Development Centre Ltd.Inventors: Mikio Matsuzaki, Toshitaka Izumihara, Toru Yoshino
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Patent number: 5384344Abstract: A friction material containing dust having bismaleimidetriazine as a major ingredient. The dust is effective when contained in amount of 1 to 20 wt. % in the friction material. Compared with conventional friction material containing cashew dust, the generation rate of noise is reduced drastically, while the frictional performance is equivalent or higher.Type: GrantFiled: September 13, 1993Date of Patent: January 24, 1995Assignees: Akebono Brake Industry Co., Ltd., Akebond Research and Development Centre Ltd.Inventors: Nobuo Kamioka, Hiroshi Tokumura, Toru Yoshino
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Patent number: 5238089Abstract: A device for preventing the squeak in a disc brake apparatus in which friction pads comprised of a semi-metallic or a non-asbestos material are pushed onto a disc rotor to perform braking is characterized in that the disc rotor is circumferentially divided by the use of slits or couplings so that the frequency of second-order resonance in the longitudinal vibration of the rotor is higher than 15 kHz and thus inaudible to humans.Type: GrantFiled: August 3, 1992Date of Patent: August 24, 1993Assignees: Akebono Brake Industry Co., Ltd., Akebono Research and Development Centre, Ltd.Inventors: Mikio Matsuzaki, Toru Yoshino, Toshitaka Izumihara
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Patent number: 5231861Abstract: Method of processing brake pads having a lining member mounted on a back plate is disclosed. An exposed surface of the lining member initially having a substantially planar configuration is heated to a warping temperature between substantially 300.degree. C. and substantially 800.degree. C. to be permanently warped the brake pad into a substantially concave configuration. Then the exposed surface of the lining member is ground into a substantially planar configuration, while maintaining the warped condition of the brake pad.Type: GrantFiled: November 21, 1991Date of Patent: August 3, 1993Assignees: Akebono Brake Industry Co., Ltd., Akebono Research and Development Centre Ltd.Inventors: Hiroshi Tokumura, Yukikazu Koyanagi, Toru Yoshino
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Patent number: 4770627Abstract: A combustion control system for an oil burner capable of precisely and positively carrying out adjustment of combustion to accomplish complete combustion during combustion operation when a variation in combustion has been carried out. The combustion control system is constructed to detect the rotation speed of the air fan 34 to detect an actual air feed rate and then determine an appropriate fuel feed rate depending upon the actual air feed rate, so that combustion may be stably and efficiently accomplished.Type: GrantFiled: December 23, 1986Date of Patent: September 13, 1988Assignee: Toyotomi Kogyo Co., Ltd.Inventor: Toru Yoshino