Patents by Inventor Takeshi Ohshima

Takeshi Ohshima 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).

  • Process for producing chloronicotinic acid compounds
    Patent number: 4504665
    Abstract: A chloronicotinic acid compound is prepared by hydrolyzing a 3-trichloromethyl pyridine compound in the presence of sulfuric acid or phosphoric acid. By this process, a highly pure chloronicotinic acid compound is obtainable in good yield. This compound is useful as an intermediate for medicines.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: March 12, 1985
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Takahiro Haga, Tohru Koyanagi, Toshio Nakajima, Takeshi Ohshima
  • Dot matrix printer
    Patent number: 4446789
    Abstract: A dot matrix printer having a printer hammer bank carried on a frame to allow movement parallel to the platen. A balancing member is suspended from the head hammer bank by resilient springs and carries a motor for driving the head hammer bank in a reciprocating manner. A linkage further couples the head hammer bank and the balancing member so that the balancing member moves in a direction opposite to that of the head hammer bank.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: May 8, 1984
    Assignees: Nippon Electric Co., Ltd., Nippon Telegraph & Telephone Public Corporation
    Inventors: Michio Matsumoto, Masao Kitamura, Masataka Ohta, Takeshi Ohshima