Patents by Inventor Masaru Koishi
Masaru Koishi 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: 8639185Abstract: A communication system includes a transmitter that applies an electric field, obtained by modulating an information signal for wideband communication, to a transmission medium. The transmitter includes a transmission electrode, a transmission circuit that outputs the information signal for the wideband communication, and a first band controller that controls a band of the information signal for the wideband communication. When the transmission medium is in contact with the transmission electrode and the transmission medium and the transmission electrode are capacitively coupled to each other, the first band controller performs control to provide a band that is necessary for a receiver to perform demodulation for the wideband communication, and when the transmission medium is not in contact with the transmission electrode, the first band controller performs control to provide a narrower band than the band that is necessary for the wideband communication.Type: GrantFiled: August 9, 2011Date of Patent: January 28, 2014Assignee: Alps Electric Co., Ltd.Inventors: Hiroyuki Hebiguchi, Shigetoshi Matsuta, Masaru Koishi, Hideyuki Nebiya
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Patent number: 8421452Abstract: A current sensor includes a magnetic detection element having a resistance value changed by applying inductive magnetic field from measurement target current, a magnetic core provided in the vicinity of the magnetic detection element, and a coil generating magnetic field attenuating the inductive magnetic field. A constant level current in a predetermined range of output voltage of the magnetic detection element flows in the coil, and the measurement target current is detected on the basis of the output voltage of the magnetic detection element.Type: GrantFiled: February 3, 2011Date of Patent: April 16, 2013Assignee: Alps Green Devices Co., Ltd.Inventors: Manabu Tamura, Masaru Koishi, Masatoshi Nomura, Hiroyuki Hebiguchi
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Publication number: 20110294420Abstract: A communication system includes a transmitter that applies an electric field, obtained by modulating an information signal for wideband communication, to a transmission medium. The transmitter includes a transmission electrode, a transmission circuit that outputs the information signal for the wideband communication, and a first band controller that controls a band of the information signal for the wideband communication. When the transmission medium is in contact with the transmission electrode and the transmission medium and the transmission electrode are capacitively coupled to each other, the first band controller performs control to provide a band that is necessary for a receiver to perform demodulation for the wideband communication, and when the transmission medium is not in contact with the transmission electrode, the first band controller performs control to provide a narrower band than the band that is necessary for the wideband communication.Type: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Applicant: ALPS ELECTRIC CO., LTD.Inventors: Hiroyuki HEBIGUCHI, Shigetoshi MATSUTA, Masaru KOISHI, Hideyuki NEBIYA
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Publication number: 20110294421Abstract: A communication system according to the present invention includes a transmitter 2 configured to provide an information signal, as an electric field, to a transmission medium 1 and a receiver configured to detect the electric field through the transmission medium 1 and obtain the information signal, and the transmitter 2 includes a resonance unit in which a resonant circuit is formed with two electrodes 221 and 222 individually forming electrostatic capacitances between the transmitter and the transmission medium and an inductor 223 connecting the two electrodes 221 and 222 to each other.Type: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Applicant: ALPS ELECTRIC CO., LTD.Inventors: Hiroyuki HEBIGUCHI, Shigetoshi MATSUTA, Masaru KOISHI, Hideyuki NEBIYA
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Publication number: 20110202295Abstract: A current measuring device includes a conductor in which detection target current flows, at least two magnetic sensors that detect change of magnetic field generated when the detection target current flows in the conductor, and a calculation unit that calculates magnitude of the detection target current from an output of the magnetic sensor. At least two magnetic sensors are provided at different distances from the conductor, and the calculation unit acquires distances between the magnetic sensors and the conductor to calculate magnitude of the detection target current using the distances.Type: ApplicationFiled: February 3, 2011Publication date: August 18, 2011Applicant: ALPS GREEN DEVICES CO., LTD.Inventors: Manabu TAMURA, Masatoshi NOMURA, Masaru KOISHI
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Publication number: 20110199079Abstract: A current sensor includes a magnetic detection element having a resistance value changed by applying inductive magnetic field from measurement target current, a magnetic core provided in the vicinity of the magnetic detection element, and a coil generating magnetic field attenuating the inductive magnetic field. A constant level current in a predetermined range of output voltage of the magnetic detection element flows in the coil, and the measurement target current is detected on the basis of the output voltage of the magnetic detection element.Type: ApplicationFiled: February 3, 2011Publication date: August 18, 2011Applicant: ALPS GREEN DEVICES CO., LTD.Inventors: Manabu TAMURA, Masaru KOISHI, Masatoshi NOMURA, Hiroyuki HEBIGUCHI
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Patent number: 4999003Abstract: A front and rear wheel steering apparatus in a motor vehicle includes a front wheel steering mechanism and a rear wheel steering mechanism which are operatively coupled to front wheels and rear wheels rotatably supported on a vehicle frame for transmitting turning movement of a steering handlebar to the front and rear wheels. While the steering handlebar is being turned from a neutral position to a prescribed angle in one direction, the rear wheels are steered in the same direction as the front wheels, and while the steering handlebar is being turned from the prescribed angle to a maximum angle, the rear wheels are steered in the opposite direction to the front wheels. The front wheel steering angle reaches a maximum value when the steering handlebar is turned to the prescribed angle, and substantially remains at the maximum value even when the steering handlebar is further turned beyond the prescribed angle.Type: GrantFiled: August 17, 1988Date of Patent: March 12, 1991Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaru Koishi, Tomoyuki Yonezawa, Hiroshi Enomoto, Kazushiro Inoue
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Patent number: 4679860Abstract: A wheel assembly for a vehicle includes a hub including a tubular body and a radial flange formed around an outer peripheral surface of the hub body and having opposite radial faces, and a separate rim including an annular body disposed coaxially with the hub body and a radial flange formed around an inner peripheral surface of the rim body and having opposite radial faces, the hub flange and the rim flange being mated together at their one radial faces and releasably fastened together by fastening means. A projection is provided on the hub flange and extends generally radially outwardly of that portion of the inner peripheral surface of the rim body disposed adjacent to the other radial face of the rim flange.Type: GrantFiled: December 3, 1985Date of Patent: July 14, 1987Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaru Koishi, Haruo Shinohara, Shinji Takayanagi
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Patent number: 4667785Abstract: A parking brake device adapted to be attached to a vehicle including a clutch lever on a handlebar such as a three- or four-wheeled buggy, wherein a parking brake is arranged coaxially with respect to the clutch lever; a lock arm is provided, which is formed at its free end with a lock hole for holding a parking brake lever in its braking position; and upper and lower pins are respectively inserted into upper and lower pin holders of a slitted sleeve mounted on the parking brake lever. The upper pin is pushed to engage the lower pin with the clutch lever and rotate therewith the parking brake lever by manipulation of the clutch lever, so that the slit on the parking brake lever is advanced into the free end of the lock arm to hold the parking brake in its braking position by the upper pin fitted into the lock hole in the lock arm.Type: GrantFiled: May 16, 1986Date of Patent: May 26, 1987Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hidetoshi Toyoda, Masaru Koishi