Patents by Inventor Hisakazu Kato

Hisakazu Kato 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).

  • Patent number: 11002570
    Abstract: A fixed element is provided to be used in a position detection device for detecting a position of a movable element that moves on the fixed element. The fixed element includes a substrate, a plurality of first electrodes and a second electrode. The substrate has as first surface, a second surface and a low-dielectric constant area. The second surface faces in an opposite direction to the first surface. The low-dielectric constant area has a lower-dielectric constant than other portions of the substrate. The first electrodes are disposed on the first surface of the substrate. The first electrodes include three or more phases arranged one-dimensionally in a repeating pattern in a movement direction of the movable element. The second electrode is disposed on the first surface of the substrate and is arranged in the movement direction of the movable element adjacent the first electrodes.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 11, 2021
    Assignee: YAMAHA CORPORATION
    Inventors: Taku Ueda, Yoshihiro Suzuki, Yoshikatsu Matsubara, Yoshihiro Natsume, Hisakazu Kato
  • Publication number: 20200398018
    Abstract: The present invention relates to a CPAP system includes a fan that suctions air and delivers the air; a sensor that measures the pressure or flow rate of air; a case having the fan and the sensor built therein and having an air inflow port and an air outflow port t; a motor drive unit that controls a rotation speed of a motor, which rotates the fan on the basis of the pressure or the flow rate, by a PWM signal; a valve that regulates a pressure or flow rate of air supplied from the air outflow port via a tube to a mask worn on a patient; and a valve drive unit that opens and closes the valve on the basis of the PWM signal, The valve drive unit includes a synthesis unit that synthesizes three-phase signals for driving the motor, and a control unit that controls a closing speed of the valve and an opening degree of the valve.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Inventors: Yoichi ENDO, Makoto SUZUKI, Hisakazu KATO
  • Publication number: 20190025090
    Abstract: A fixed element is provided to be used in a position detection device for detecting a position of a movable element that moves on the fixed element. The fixed element includes a substrate, a plurality of first electrodes and a second electrode. The substrate has as first surface, a second surface and a low-dielectric constant area. The second surface faces in an opposite direction to the first surface. The to low-dielectric constant area has a lower-dielectric constant than other portions of the substrate. The first electrodes are disposed on the first surface of the substrate. The first electrodes include three or more phases arranged one-dimensionally in a repeating pattern in a movement direction of the movable element. The second electrode is disposed on the first surface of the substrate and is arranged in the movement direction of the movable element adjacent the first electrodes.
    Type: Application
    Filed: September 18, 2018
    Publication date: January 24, 2019
    Inventors: Taku UEDA, Yoshihiro SUZUKI, Yoshikatsu MATSUBARA, Yoshihiro NATSUME, Hisakazu KATO
  • Patent number: 5561467
    Abstract: High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modulate at least a first sub-carrier signal. The first sub-carrier is frequency interleaved onto the standard broadcast signal. Vertical high resolution components are time compressed and time division multiplexed onto top and bottom portions of the standard broadcast signal. The modified broadcast signal can be decoded by a standard receiver to display a standard resolution video image, while receivers designed to decode the modified signal can time division demultiplex the vertical high resolution components and demodulate the horizontal high resolution components, combine these components with the standard components, and generate a high definition video image.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: October 1, 1996
    Assignee: Nippon Hoso Kyokai
    Inventors: Yoshio Takeuchi, Makoto Okui, Isao Kondo, Yasuaki Kanatsugu, Junji Kumada, Taiichiro Kurita, Kazuhiko Shibuya, Taiji Nishizawa, Yutaka Tanaka, Minoru Honda, Ryoichi Yajima, Shoichi Suzuki, Hisakazu Kato, Hiroyuki Hamazumi, Kazumasa Enami, Seiichi Gohshi, Yoshinori Izumi, Haruo Okuda, Ichiro Yuyama, Sumio Yano, Makoto Tadenuma
  • Patent number: 5151779
    Abstract: A signal transmission system for high definition television that can handle a second television signal which is superior in quality to a first television signal such as an NTSC (National Television System Committee) television signal. The transmitting end of the system transmits a first television signal including a video signal, audio signals, etc., through a main transmission line, as well as a third television signal including a high definition components obtained as the difference between the second and the first television signal through an auxiliary transmission line. The receiving end of the system receives and synthesizes the first television signal transmitted through the main transmission line and the third television signal transmitted through the auxiliary transmission line to produce the second television signal.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: September 29, 1992
    Assignee: Nippon Hoso Kyokai
    Inventors: Yasuaki Kanatsugu, Taiichiro Kurita, Taiji Nishizawa, Yutaka Tanaka, Ryoichi Yajima, Shoichi Suzuki, Hisakazu Kato, Kazumasa Enami, Haruo Okuda, Satoru Koizumi, Hideki Suganami, Toshiyuki Takegahara, Kaoru Watanabe
  • Patent number: 4761561
    Abstract: In a pattern generating system for scanning a pattern on a surface of a workpiece with a laser beam modulated by drawing data so as to form a pattern corresponding to design pattern data, a plurality of through holes are formed at predetermined positions of the workpiece. Beams transmitted through the through holes are directed to a sensor for generating a detection output representing positions of the transmitted beams. A computer generates position data of the through holes on the basis of the detection output and calculates a positional error and a deformation amount of the workpiece. A correcting device corrects the drawing on the basis of the positional error and the deformation amount.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: August 2, 1988
    Assignee: Nippon Kogaku K.K.
    Inventors: Yoshihisa Fujiwara, Akikazu Tanimoto, Hisakazu Kato, Manabu Hosoya, Shinji Miura, Fuyuhiko Inoue, Yuichi Aoki
  • Patent number: 3947943
    Abstract: A machine comprises a wire station for supplying various wires, a harness board on which a cable harness is to be formed, and a harness laying head movable relative to the harness board for receiving selected one of the wires from the wire station laying the selected wire on the harness board. The wire station comprises a plurality of wire clampers for releasably clamping the respective wires with their free ends protruding approximately a predetermined length towards the harness laying head.
    Type: Grant
    Filed: July 1, 1974
    Date of Patent: April 6, 1976
    Assignee: Nippon Electric Company Limited
    Inventors: Takamasa Kokubo, Mikio Sakai, Tomohide Inada, Takashi Nakanishi, Hiroshi Seki, Hazime Yaegashi, Kouji Izumi, Morio Matsumura, Takao Nomura, Hisakazu Kato