Patents by Inventor Nobukazu Tsutsui

Nobukazu Tsutsui 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).

  • Patent number: 4259163
    Abstract: A process is provided for applying an anticorrosive coating on an automobile body member. The process comprises subjecting the whole or lower portion of the body member to an electrodeposition in an aqueous bath containing (A) a cationic resinous binder and (B) a synthetic resin in the form of fine powder which is solid at room temperature but can melt at an elevated temperature, the weight ratio of (A)/(B) being 1/0.05-5. Subsequently the whole of the body member is subjected, without hardening the deposited film, to an electrodeposition in an aqueous bath containing an anionic or cationic resin. The thus treated article is washed with water and baked to effect the hardening thereof.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: March 31, 1981
    Assignee: Shinto Paint Co., Ltd.
    Inventors: Tameyuki Suzuki, Yoshio Shirakashi, Nobukazu Tsutsui, Sadao Yamamoto, Akira Kubo, Yasuhiko Teshima, Nobuo Kuranami
  • Patent number: 4208262
    Abstract: A process for coating an article is provided herein, which process comprises subjecting an article to a powder electrodeposition in a bath containing a water-thinnable cationic synthetic resin and a synthetic resin in the form of a fine powder, and then subjecting the thus coated material, without hardening the formed coating, to an additional electrodeposition in a bath containing an ionic synthetic resin and baking the coated article to effect cross-linking and hardening between the resins; the improvement step which is characterized in spraying hot water of more than 50.degree. C. onto the coated film after finishing the first half powder electrodeposition, but before carrying out the second half electrodeposition step.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: June 17, 1980
    Assignees: Shinto Paint Co., Ltd., Honda Motor Co. Ltd.
    Inventors: Akira Kubo, Nobuaki Todoroki, Yasuhiko Teshima, Nobuo Kuranami, Nobukazu Tsutsui, Akio Kasai