Patents by Inventor Kouichi Takano

Kouichi Takano 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).

  • AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio
    Patent number: 6490010
    Abstract: Stabilized carrier recovery is achieved even at the time of a low C/N ratio by measuring the phase of a signal and controlling VCO or NCO (Numerical Controlled Oscillator) using only a period having few constellation points. At this time, false lock phenomenon is avoided as follows. That is, relatively short SYNC modulated by an already-known pattern is entered into a modulation wave, VCO or NCO oscillation frequency is swept in a wide range and sweep is stopped at a frequency in which the SYNC can be received, thereby carrying out coarse control AFC. Further, a period having long to some extent, having few constellation points is provided in the modulation wave and then, a difference between the frequency of a received modulated signal and a local oscillation signal of VCO or NCO is obtained in this period.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: December 3, 2002
    Inventors: Kazuhiko Shibuya, Junji Kumada, Yuichi Iwadate, Hiroyuki Hamazumi, Toshihiro Nomoto, Kouichi Takano, Tomohiro Saito, Shoji Tanaka, Fumiaki Minematsu, Akinori Hashimoto, Shigeyuki Itoh, Hajime Matsumura, Hisakazu Katoh, Masaru Takechi
  • System, method, and recording medium for drafting and preparing patent specifications
    Patent number: 6434580
    Abstract: A client computer 100 enters with a draft preparation means 100 a piece of draft data prepared by an inventor, and transmits with a draft uploading means 103 the draft data and a piece of invention report information to a server computer 300. The server computer 300 receives with a draft receiving means 301 the transmitted pieces of draft data and invention report information, and enters them with a draft entry means 302 into a specification file 303, the data and the information being associated with each other. A client computer 200 transfers with a draft downloading means 201 the draft data entered in the server computer 300, revises with a draft revision means 202 the draft data, and transmits with a draft uploading means 203 the revised draft data to the server computer 300.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: August 13, 2002
    Assignee: NEC Corporation
    Inventors: Kouichi Takano, Akira Shiramizu, Hiroyuki Kubo, Fumio Imoto, Kouichi Shimamura, Daisuke Furusawa
  • Louver device formed by sheet-like material
    Patent number: 4951728
    Abstract: A louver device comprises a main body formed of a flexible sheet-like material. A large number of slits are formed in the main body such that the portions between the adjacent slits constitute slats. The louver device also comprises holding/deforming means for shearing at least part of the main body in the direction of the surfaces of the main body. The shearing force applied to the main body serves to twist the end of the slats, thereby slanting the slats.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: August 28, 1990
    Inventor: Kouichi Takano