Patents by Inventor Tatsuo Ohira

Tatsuo Ohira 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).

  • Stopwatch with target time function
    Patent number: 5408446
    Abstract: In a stopwatch of this invention, when a lap switch is operated after time measurement is started, a lap time from the immediately preceding lap switch operation to the current lap switch operation is stored and compared with a measurement time after the current lap switch operation. Since an alarm tone is generated if the measurement time after the current lap switch operation coincides with the stored lap time, the immediately preceding lap time can be used as a target time of the time measurement. The stopwatch can be conveniently used when a running speed is increased or decreased in each lap in a track race or the like.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: April 18, 1995
    Assignee: Casio Computer Co., Ltd.
    Inventor: Tatsuo Ohira
  • Stopwatch with target time function
    Patent number: 5297110
    Abstract: In a stopwatch of this invention, when a lap switch is operated after time measurement is started, a lap time from the immediately preceding lap switch operation to the current lap switch operation is stored and compared with a measurement time after the current lap switch operation. Since an alarm tone is generated if the measurement time after the current lap switch operation coincides with the stored lap time, the immediately preceding lap time can be used as a target time of the time measurement. The stopwatch can be conveniently used when a running speed is increased or decreased in each lap in a track race or the like.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: March 22, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventors: Tatsuo Ohira, Naoyuki Sakazaki
  • Polynucleotide synthesizing apparatus
    Patent number: 4671941
    Abstract: In an apparatus for synthesizing polynucleotide including a plurality of reactors, bottles charged with reagents and solvents, and change valve means for switching passages between respective bottles and the reactors, the improvement comprises mode selector means between a pressure source and the reactors for switching liquid supply or discharge operation and distributor means for closing or opening passages connected with the reactors to selectively operate the reactors.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 9, 1987
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Akihiko Niina, Tatsuo Ohira, Shigemi Miyamoto
  • Vinyl chloride resin composition
    Patent number: 4642324
    Abstract: A vinyl chloride resin composition comprising a copolymer derived from 70 to 99.8% by weight of vinyl chloride, 0.2 to 30% by weight of a monoester of an alpha, beta-unsaturated dicarboxylic acid, 0 to 2% by weight of a compound having two or more active double bonds in the molecule and 0 to 20% by weight of another vinyl compound, a mono- or divalent metal compound and a plasticizer.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: February 10, 1987
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Toshiaki Kobayashi, Hiromichi Arakawa, Tatsuo Ohira