Patents by Inventor Kiyoshi Oikawa

Kiyoshi Oikawa 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: 9314394
    Abstract: A motion assisting device or the like, wherein the asymmetry degree of the motion patterns of human limbs is evaluated according to the variation patterns of the values of a pair of posture variables which vary with the postures in the respective same locations of the limbs. Furthermore, the evaluation result of the degree of the asymmetry can be utilized as the foundation of the motion control of the actuator of the motion assisting device. As a result, the motion of the human limbs can be assisted by the motion assisting device in such a manner that the balance of the motion patterns of the limbs is adjusted.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: April 19, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Hirata, Kiyoshi Oikawa, Masami Saito, Toshinobu Okaji, Yuki Araki
  • Publication number: 20120215140
    Abstract: A motion assisting device or the like, wherein the asymmetry degree of the motion patterns of human limbs is evaluated according to the variation patterns of the values of a pair of posture variables which vary with the postures in the respective same locations of the limbs. Furthermore, the evaluation result of the degree of the asymmetry can be utilized as the foundation of the motion control of the actuator of the motion assisting device. As a result, the motion of the human limbs can be assisted by the motion assisting device in such a manner that the balance of the motion patterns of the limbs is adjusted.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 23, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takashi Hirata, Kiyoshi Oikawa, Masami Saito, Toshinobu Okaji, Yuki Araki
  • Patent number: 7953309
    Abstract: An optical fiber, which has a zero-material dispersion wavelength equal to or greater than 2 ?m, and a high nonlinear susceptibility ?3 equal to or greater than 1×10?12 esu, and uses tellurite glass having sufficient thermal stability for processing into a low loss fiber, employs a PCF structure or HF structure having strong confinement into a core region. This enables light to propagate at a low loss. The size and geometry of air holes formed in the core region, and the spacing between adjacent air holes make it possible to control the zero dispersion wavelength within an optical telecommunication window (1.2-1.7 ?m), and to achieve large nonlinearity with a nonlinear coefficient ? equal to or greater than 500 W?1 km?1.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: May 31, 2011
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Atsushi Mori, Masao Kato, Kouji Enbutsu, Shinichi Aozasa, Kiyoshi Oikawa, Takashi Kurihara, Kazuo Fujiura, Makoto Shimizu, Kouji Shikano
  • Patent number: 7677059
    Abstract: A fabrication method of an optical fiber using as a core material tellurite glass. The method includes a first process of molding a tellurite glass melt into a mold, the mold having a plurality of convex portions defining an inner wall, which portions run parallel to each other in a longitudinal direction in order to make a polygon columnar glass preform, and a second process of inserting the glass preform into a cylindrical jacket tube made of tellurite glass and carrying out fiber-drawing under pressure so as to maintain or enlarge air holes which are gaps generated between the glass preform and the jacket tube.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: March 16, 2010
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Atsushi Mori, Masao Kato, Kouji Enbutsu, Shinichi Aozasa, Kiyoshi Oikawa, Takashi Kurihara, Kazuo Fujiura, Makoto Shimizu, Kouji Shikano
  • Publication number: 20090060438
    Abstract: An optical fiber, which has a zero-material dispersion wavelength equal to or greater than 2 ?m, and a high nonlinear susceptibility ?3 equal to or greater than 1×10?12 esu, and uses tellurite glass having sufficient thermal stability for processing into a low loss fiber, employs a PCF structure or HF structure having strong confinement into a core region. This enables light to propagate at a low loss. The size and geometry of air holes formed in the core region, and the spacing between adjacent air holes make it possible to control the zero dispersion wavelength within an optical telecommunication window (1.2-1.7 ?m), and to achieve large nonlinearity with a nonlinear coefficient ? equal to or greater than 500 W?1 km?1.
    Type: Application
    Filed: October 30, 2008
    Publication date: March 5, 2009
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Atsushi Mori, Masao Kato, Kouji Enbutsu, Shinichi Aozasa, Kiyoshi Oikawa, Takashi Kurihara, Kazuo Fujiura, Makoto Shimizu, Kouji Shikano
  • Patent number: 5239894
    Abstract: A shift control system for a vehicle transmission with multiple gear trains and a main shaft connected to an engine crankshaft through a clutch. The shift control system allowing shifting without disengaging the clutch.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: August 31, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Oikawa, Takafumi Tsurumi, Akihito Ohhashi, Noboru Ashikawa, Kouji Yamaguchi, Hisashi Kunii
  • Patent number: 4475505
    Abstract: A system adapted to control a control valve for controlling the quantity of supplementary air being supplied to an internal combustion engine, in a feedback manner responsive to a difference between actual engine rpm and desired engine rpm at engine idle. The above control valve is opened in synchronism with a signal indicative of a predetermined rotational position of the engine. The system is also adapted to detect a total quantity of suction air including the supplementary air being supplied to the engine, in synchronism with the above predetermined rotational position signal, to supply a quantity of fuel corresponding to the detected total suction air quantity.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: October 9, 1984
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shumpei Hasegawa, Takashi Koumura, Toshiyuki Mieno, Kiyoshi Oikawa
  • Patent number: 4153916
    Abstract: A facsimile communication system and method in which facsimile information from original documents is sequentially transmitted from a transmitter to a remote receiver. The transmitter is utilized for changing the data transfer speed of the facsimile information in accordance with an instruction signal provided by the remote receiver. The remote receiver supervises the error rate level of each unit of facsimile information of the original documents and provides the instruction signal when the error rate level is detected to exceed a reference error rate level.
    Type: Grant
    Filed: November 8, 1977
    Date of Patent: May 8, 1979
    Assignee: Fujitsu Limited
    Inventors: Hirohide Miwa, Kiyoshi Oikawa, Yoshio Iizuka