Patents by Inventor Takumi Takahashi

Takumi Takahashi 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).

  • Method of reducing amount of data required to achieve neural network learning
    Patent number: 5621861
    Abstract: A method of reducing the amount of learning data required to execute a neural network learning procedure, whereby an original entire set of learning sample data are divided, using cluster analysis of the original entire learning sample data, into a plurality of sub-groups, with the sub-groups being respectively applied to a neural network as learning data and with respective values of recognition index obtained thereby for the neural network being judged, to select the smallest sub-group which will provide a value of recognition index that is at least equal to the recognition index obtainable by using the original entire learning data.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: April 15, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Hayashi, Takumi Takahashi
  • Bisheterocyclic derivative or salt thereof
    Patent number: 5508296
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 16, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Takumi Takahashi, Takashi Yoneda, Osamu Noshiro, Reiko Koike, Akiyoshi Shimaya
  • Private branch exchange with resumption of interrupted communication
    Patent number: 5410591
    Abstract: If a communicating terminal connected to a communication line in a private branch exchange system is disconnected from the communication line, then, on the basis of call identifying information contained in an interruption message and in a resumption message, communication is put on hold and is subsequently resumed after the terminal is re-connected. This allows the terminal to be moved between the same or different communication lines while preventing loss of communication.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: April 25, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takumi Takahashi
  • Saturated heterocyclic carboxamide derivatives
    Patent number: 4987132
    Abstract: A saturated heterocyclic carboxamide derivative of the following general formula (I) and salts thereof which have platelet activating factor (PAF) antagonizing activity.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: January 22, 1991
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toshiyasu Mase, Hiromu Hara, Hitoshi Nagaoka, Takumi Takahashi, Takeshi Suzuki, Kenichi Tomioka, Toshimitsu Yamada