Patents by Inventor Shoichi Chihara

Shoichi Chihara 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).

  • Heat storage/heat radiation method
    Patent number: 5916477
    Abstract: Heat storage/heat radiation is effected by a method comprising conducting heat storage/heat radiation in an apparatus containing a heat storage material of a sugar alcohol in an oxygen depleted atmosphere. The latent heat storage material does not suffer from any charge either in melting point or in the heat storage capacity even after repeated use.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: June 29, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Kakiuchi, Masanori Yamazaki, Shoichi Chihara, Yasuhiro Terunuma, Yuichi Sakata
  • Heat storage material composition
    Patent number: 5785885
    Abstract: Provided is a heat storage material composition comprising at least one sugar alcohol selected from erythritol, mannitol and galactitol, and a salt which is sparingly soluble in the sugar alcohol. The heat storage material composition of the present invention can stably be used for a long period of time since the crystallization temperature is not decreased even if heat absorption and heat radiation are repeated.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: July 28, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Kakiuchi, Shoichi Chihara, Masanori Yamazaki, Tsutomu Isaki
  • Dental gypsum composition
    Patent number: 5505771
    Abstract: A dental gypsum composition is disclosed, comprising (A) 100 parts by weight of calcined gypsum, (B) from 0.005 to 5.0 parts by weight of an alkali metal tartrate, (C) from 0.1 to 5.0 parts by weight of a sugar alcohol, and (D) from 0.005 to 3.0 parts by weight of a retarder. The composition provides a denture model excellent in surface smoothness, dimensional precision, and mechanical strength even when combined with an impression made of an agar-based material or an alginate-based material.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: April 9, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shoichi Chihara, Kouichi Morita, Noboru Yamaguchi