Patents by Inventor Makoto Kajiyashiki

Makoto Kajiyashiki 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: 6989349
    Abstract: An information recording-displaying card, includes: a core sheet; and an over sheet bonded to the core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of relatively forming a coloring state and a decolorizing state, with a difference in at least one of heating temperature, and cooling rate after heating. The over sheet is embossable in an upper portion thereof, functions as an image displaying section, and meets the following condition (A) and condition (B): (A) (the over sheet's upper limit temperature for erasing ?30° C.)?(temperature of a storage elasticity E? (1.0 E+08) Pa)?200° C., and (B) 1.0 E+04 Pa?(the storage elasticity E? of the over sheet at 180° C.)?5.0 E+07 Pa.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: January 24, 2006
    Assignees: Ricoh Company, Ltd., Mitsubishi Plastics, Inc.
    Inventors: Tadafumi Tatewaki, Shuji Miyamoto, Hiroki Kuboyama, Yoshihiko Hotta, Hiroshi Higashi, Tomohiko Terai, Shinya Takemoto, Makoto Kajiyashiki
  • Patent number: 6969695
    Abstract: An information recording-displaying card, includes: core sheet; and over sheet bonded to core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of forming coloring state and decolorizing state, with difference in at least one of the following: heating temperature, and cooling rate after heating. The over sheet is embossable in upper portion thereof, functions as image displaying section, and meets the following conditions (A), (B) and (C): (A) (over sheet's upper limit temperature for erasing?30° C.)>(over sheet's temperature of storage elasticity E? (1.0 E+08) Pa), (B) 10 ?m or less of surface waviness WCM, and (C) 1.0 E+02 Pa?(storage elasticity E? of reversible thermosensitive over sheet at 180° C.)?5.0 E+07 Pa.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: November 29, 2005
    Assignees: Ricoh Company, Ltd., Mitsubishi Plastics, Inc.
    Inventors: Hiroki Kuboyama, Tadafumi Tatewaki, Shuji Miyamoto, Yoshihiko Hotta, Hiroshi Higashi, Shinya Takemoto, Tomohiko Terai, Makoto Kajiyashiki
  • Publication number: 20050170961
    Abstract: An information recording-displaying card, includes: core sheet; and over sheet bonded to core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of forming coloring state and decolorizing state, with difference in at least one of the following: heating temperature, and cooling rate after heating. The over sheet is embossable in upper portion thereof, functions as image displaying section, and meets the following conditions (A), (B) and (C): (A) (over sheet's upper limit temperature for erasing?30° C.)>(over sheet's temperature of storage elasticity E? (1.0 E+08) Pa), (B) 10 ?m or less of surface waviness WCM, and (C) 1.0 E+02 Pa?(storage elasticity E? of reversible thermosensitive over sheet at 180° C.)?5.0 E+07 Pa.
    Type: Application
    Filed: October 25, 2004
    Publication date: August 4, 2005
    Applicants: Ricoh Company Limited, Mitsubishi Plastics, Inc.
    Inventors: Hiroki Kuboyama, Tadafumi Tatewaki, Shuji Miyamoto, Yoshihiko Hotta, Hiroshi Higashi, Shinya Takemoto, Tomohiko Terai, Makoto Kajiyashiki
  • Publication number: 20050130840
    Abstract: An information recording-displaying card, includes: a core sheet; and an over sheet bonded to the core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of relatively forming a coloring state and a decolorizing state, with a difference in at least one of: heating temperature, and cooling rate after heating. The over sheet is embossable in an upper portion thereof, functions as an image displaying section, and meets the following condition (A) and condition (B): (A) (the over sheet's upper limit temperature for erasing ?30° C.)?(temperature of a storage elasticity E? (1.0 E+08)Pa)?200° C., and (B) 1.0 E+04 Pa?(the storage elasticity E? of the over sheet at 180° C.)?5.0 E+07 Pa.
    Type: Application
    Filed: October 25, 2004
    Publication date: June 16, 2005
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Tadafumi Tatewaki, Shuji Miyamoto, Hiroki Kuboyama, Yoshihiko Hotta, Hiroshi Higashi, Tomohiko Terai, Shinya Takemoto, Makoto Kajiyashiki