Patents by Inventor Kunio Sakaue

Kunio Sakaue 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).

  • Suppression of pressure water absorption of lightweight aggregate by aqueous dispersion therein of anionic polymers
    Patent number: 4956403
    Abstract: A pressure water absorption inhibitor for lightweight aggregates which comprises an aqueous dispersion of a polymeric substance having a viscosity which permits the aqueous dispersion to enter the fine pores in the surface layer of a lightweight aggregate and which dispersion is capable of being thickened to a viscosity of not less than 50 times the viscosity before thickening by elevation of the pH.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: September 11, 1990
    Assignees: Takenaka Komuten Co., Ltd., Sanyo Chemical Industries, Ltd.
    Inventors: Toshio Yonezawa, Takashi Iwashimizu, Yasuhiko Yoshioka, Koichi Ito, Kunio Sakaue, Tetsuo Nakase
  • Aluminum heat exchanger provided with fins having hydrophilic coating
    Patent number: 4588025
    Abstract: The fins of an aluminum heat exchanger are treated with a coating composition comprising an alkali silicate and a low-molecular-weight compound having carbonyl and are thereafter heated for drying, whereby a hydrophilic coating is formed over the surfaces of the fins.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: May 13, 1986
    Assignee: Showa Aluminum Corporation
    Inventors: Takaichi Imai, Takeshi Yamada, Kunio Sakaue, Eizo Isoyama, Masaaki Mizoguchi, Katsumi Tanaka