Patents by Inventor Keizou Kawahara

Keizou Kawahara 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).

  • EASY-TO-TEAR STRETCHED ALIPHATIC POLYESTER FILM
    Publication number: 20090152095
    Abstract: The easy-to-tear stretched aliphatic polyester film of the present invention is characterized in that the edge tear strength in the longitudinal direction and the transverse direction is not more than 22 N. The easy-to-tear stretched aliphatic polyester film of the present invention is produced by a method of irradiation of actinic rays on an aliphatic polyester film or a method of film-forming a film obtained by laminating aliphatic polyesters having different melting points in three layers of A/B/A under particular film-forming conditions.
    Type: Application
    Filed: January 26, 2009
    Publication date: June 18, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita
  • Refrigerator having alarm device for alarming leakage of refrigerant
    Publication number: 20050103029
    Abstract: A detector (29) detects that a refrigerant gas has leaked from a refrigeration cycle, or detects in advance that a refrigerant is to leak. The alarming device (27) gives users an alarming signal warning against the refrigerant leak. The alarming device (27) is caused to stop giving an alarming signal after users open doors of storage compartments including a refrigerator compartment (4), a vegetable storage compartment (5) and a freezer compartment (6). For example, after all the doors of the storage compartments are opened, giving the alarming signal is stopped. Otherwise, giving the alarming signal is stopped after the door of a storage compartment into which cold air flows by causing a damper (12) to open is opened.
    Type: Application
    Filed: December 27, 2002
    Publication date: May 19, 2005
    Inventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita
  • Easy-to-tear stretched aliphatic-polyester film
    Publication number: 20050106345
    Abstract: The easy-to-tear stretched aliphatic polyester film of the present invention is characterized in that the edge tear strength in the longitudinal direction and the transverse direction is not more than 22 N. The easy-to-tear stretched aliphatic polyester film of the present invention is produced by a method of irradiation of actinic rays on an aliphatic polyester film or a method of film-forming a film obtained by laminating aliphatic polyesters having different melting points in three layers of A/B/A under particular film-forming conditions.
    Type: Application
    Filed: January 6, 2003
    Publication date: May 19, 2005
    Inventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita