Patents by Inventor Shigeyuki Ejiri

Shigeyuki Ejiri 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).

  • Wireless communication system, apparatus and method thereof
    Patent number: 8204144
    Abstract: Provided is a wireless communication system, comprising: a wireless communication apparatus which performs adaptive modulation for changing a modulation method and an encoding rate of a data channel, and transmits/receives a signal via MIMO multiplexing. The control information comprises first control information to be used for a MIMO stream separation process and second control information not to be used for the MIMO stream separation process. The selections in the second control information are changed corresponding to selected first control information.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 19, 2012
    Assignee: Hitachi, Ltd.
    Inventors: May Takada, Satoshi Tamaki, Shigeyuki Ejiri
  • Wireless Communication System, Apparatus and Method Thereof
    Publication number: 20100027595
    Abstract: Provided is a wireless communication system, comprising: a wireless communication apparatus which performs adaptive modulation for changing a modulation method and an encoding rate of a data channel, and transmits/receives a signal via MIMO multiplexing. The control information comprises first control information to be used for a MIMO stream separation process and second control information not to be used for the MIMO stream separation process. The selections in the second control information are changed corresponding to selected first control information.
    Type: Application
    Filed: June 12, 2009
    Publication date: February 4, 2010
    Inventors: May TAKADA, Satoshi TAMAKI, Shigeyuki EJIRI
  • Base for oral composition and the oral composition
    Patent number: 7393519
    Abstract: A non-aqueous toothpaste comprises ascorbic acid or a salt thereof, mixed in a base which is a combination of hydroxypropyl cellulose and 1,3-butylene glycol which is thereby essentially water-free thereby stabilizing the ascorbic acid or a salt thereof.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: July 1, 2008
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Shinji Sugiyama, Shigeyuki Ejiri, Mitsufumi Matsumoto
  • Base for oral composition and the oral composition
    Publication number: 20050207994
    Abstract: The present invention provides a base for an oral composition which is suitable for the preparation of oral compositions, in particular, water-free or substantially water-free oral composition. The present invention further provides an oral composition stably containing active ingredients which are ordinarily unstable in the presence of water, in particular, a water-free or substantially water-free oral composition. The present invention provides a base for a non-aqueous oral composition which contains hydroxypropyl cellulose and at least one component selected from the group consisting of concentrated glycerol, diglycerol, propylene glycol, 1,3-butylene glycol and polyethylene glycols. The present invention further provides an oral composition containing the base for the oral composition.
    Type: Application
    Filed: May 9, 2005
    Publication date: September 22, 2005
    Applicant: Taisho Pharmaceutical Co., Ltd.
    Inventors: Shinji Sugiyama, Shigeyuki Ejiri, Mitsufumi Matsumoto
  • Base for oral composition and the oral composition
    Publication number: 20050196353
    Abstract: The present invention provides a base for an oral composition which is suitable for the preparation of oral compositions, in particular, water-free or substantially water-free oral composition. The present invention further provides an oral composition stably containing active ingredients which are ordinarily unstable in the presence of water, in particular, a water-free or substantially water-free oral composition. The present invention provides a base for a non-aqueous oral composition which contains hydroxypropyl cellulose and at least one component selected from the group consisting of concentrated glycerol, diglycerol, propylene glycol, 1,3-butylene glycol and polyethylene glycols. The present invention further provides an oral composition containing the base for the oral composition.
    Type: Application
    Filed: May 9, 2005
    Publication date: September 8, 2005
    Applicant: NIPPON ZETTOC CO., LTD.
    Inventors: Shinji Sugiyama, Shigeyuki Ejiri, Mitsufumi Matsumoto