Patents by Inventor Takatoshi Katsumata

Takatoshi Katsumata 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).

  • Embossed metallic flakelets and method for producing the same
    Patent number: 6303222
    Abstract: Embossed metallic flakelets have high damage resistance and can be produced readily. A method for production is also provided. The embossed metallic flakelets are produced by dip-coating an organic-inorganic composite layer 12 on upper and lower sides of a carrier layer made of a PVA film or the like by a sol-gel process, and pressing an original embossed pattern 14 having an embossed pattern against the organic-inorganic composite layer 12 under pressure to transfer the embossed pattern onto the organic-inorganic composite layer 12. A sample having the transferred embossed pattern is sintered, to form a metallic film 10 on the organic-inorganic composite layer 12 by deposition or the like.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 16, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Kimoto, Masatugu Nakanishi, Akira Kato, Yoshihiro Yamamura, Yukio Okochi, Takatoshi Katsumata
  • Method for producing embossed metallic flakelets
    Patent number: 6168100
    Abstract: An improved method of preparing embossed metallic flakelets for a hologram pigment improves productivity through a simpler process. A metallic foil 12 is first pressed between a cooperative pair of dies 10 having mutually complementary embossed patterns to thereby transfer to the surfaces of the metallic foil 12 the embossed pattern of the dies 10. Finally, the pulverized metallic flakelets are mixed with predetermined other ingredients to make a hologram pigment.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: January 2, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Kato, Masatsugu Nakanishi, Hidekazu Yamanakajima, Yoshihiro Yamamura, Yukio Okochi, Takatoshi Katsumata
  • Embossed metallic flakelets and method for producing the same
    Patent number: 6112388
    Abstract: Embossed metallic flakelets have high damage resistance and can be produced readily. A method for production is also provided. The embossed metallic flakelets are produced by dip-coating an organic-inorganic composite layer 12 on upper and lower sides of a carrier layer made of a PVA film or the like by a sol-gel process, and pressing an original embossed pattern 14 having an embossed pattern against the organic-inorganic composite layer 12 under pressure to transfer the embossed pattern onto the organic-inorganic composite layer 12. A sample having the transferred embossed pattern is sintered, to form a metallic film 10 on the organic-inorganic composite layer 12 by deposition or the like.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: September 5, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Kimoto, Masatugu Nakanishi, Akira Kato, Yoshihiro Yamamura, Yukio Okochi, Takatoshi Katsumata