Patents by Inventor Hidetoshi Ishikawa

Hidetoshi Ishikawa 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).

  • Publication number: 20020073332
    Abstract: Information stored in an IC card which can be set to a block state, where any functions permitted to a user authority holder is not effective and an unblock password is required to set the IC card back to an initial state, is more secured than that stored in an IC card without the block state. The IC card of the present invention is further provided with a counter counting the number of incorrect unblock passwords, and is set to a more secured state of operation where only administrative authority holder can release the IC card.
    Type: Application
    Filed: December 12, 2001
    Publication date: June 13, 2002
    Applicant: NTT DoCoMo, Inc.
    Inventors: Hidetoshi Ishikawa, Yukio Yamauchi, Kanehiro Imai, Akihiro Higashi
  • Patent number: 6260382
    Abstract: A pierced earring having an earring body with an open space between a top end and another end. The top end is elongated to serve as a pin, which is inserted into a hole in the pierced earlobe. The earring body has the pin in a U-shape design for ornamental purposes, while a shaft base is provided on the bottom end. A clasp is held by a shaft in this shaft base and the tip of the clasp is slipped on the U-shape pin to keep it from falling off. Since this pierced earring makes it impossible for the clasp to be opened easily from the pin of the earring body, it provides a pierced earring which, once it is fixed to the earlobe, will be certain to never slip off the hole in the pierced earlobe. Also, a pierced earring is provided in which the clasp can be easily fixed to or released from the earring body.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: July 17, 2001
    Inventor: Hidetoshi Ishikawa
  • Patent number: 5698185
    Abstract: A whitening cosmetic preparation containing angiogenin as an effective component is disclosed. Angiogenin used in the present invention may be derived from milk, especially bovine milk. The whitening cosmetic preparation contains at least 0.001% by weight, preferably from 0.01 to 20% by weight angiogenin based on the total amount of said preparation. A method for whitening skin comprising administration of angiogenin to skin is also disclosed. The whitening cosmetic preparation inhibits melanin production and prevents the developments of blotches and freckles of skin.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: December 16, 1997
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Yasuharu Itagaki, Hidetoshi Ishikawa, Seiji Kurosawa