Patents by Inventor Naruhisa Kamiya

Naruhisa Kamiya 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).

  • Corrosion resistant member
    Patent number: 6858321
    Abstract: A corrosion resistant member has a chemical conversion treatment film with a two-layer structure formed atop a metal substrate plated with zinc or zinc alloy plating. The two-layer structure comprises a lower layer containing Cr formed on the surface of the plating and an upper layer containing SiO2.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: February 22, 2005
    Assignee: Yuken Industry Co., Ltd.
    Inventors: Nobuaki Wada, Yasuhiro Nagaya, Mitsuhiro Ito, Naruhisa Kamiya, Makoto Sakakibara
  • Corrosion resistant member
    Publication number: 20030190492
    Abstract: A corrosion resistant member has a chemical conversion treatment film with a two-layer structure formed atop a metal substrate plated with zinc or zinc alloy plating. The two-layer structure comprises a lower layer containing Cr formed on the surface of the plating and an upper layer containing SiO2.
    Type: Application
    Filed: September 23, 2002
    Publication date: October 9, 2003
    Applicant: Yuken Industry Co., Ltd.
    Inventors: Nobuaki Wada, Yasuhiro Nagaya, Mitsuhiro Ito, Naruhisa Kamiya, Makoto Sakakibara