Patents Assigned to Isao Sakata
  • Urea-formaldehyde resin adhesive
    Patent number: 4307206
    Abstract: A urea-formaldehyde resin adhesive comprising a powder of a substance having the property of gradually reacting with an acid and thus consuming the acid.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: December 22, 1981
    Assignees: Oshika Shinko Co., Ltd., Mitsuo Higuchi, Isao Sakata
    Inventors: Mitsuo Higuchi, Isao Sakata