Patents by Inventor Miya Nakayama

Miya Nakayama 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).

  • Indicator
    Patent number: 6814909
    Abstract: An indicator comprising a porous resin material, and a liquid retained in the pores of the porous resin material, in which the whiteness of the porous resin material is at least 80, and the whiteness of the porous resin material is at least 20 larger than that of the indicator. This indicator displays information such as a period through the change of a color tone, and the like, well maintains the displaying properties, and suffers from less variation of displayed periods.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: November 9, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadashi Sakurai, Takanori Kume, Tatsuhiro Nagamatsu, Tsuyoshi Moriguchi, Miya Nakayama
  • Tape cartridge
    Patent number: D474191
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: May 6, 2003
    Assignee: Sony Corporation
    Inventor: Miya Nakayama
  • Tape cartridge
    Patent number: D474193
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: May 6, 2003
    Assignee: Sony Corporation
    Inventor: Miya Nakayama
  • Battery
    Patent number: D413565
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 7, 1999
    Assignee: Sony Corporation
    Inventor: Miya Nakayama