Patents by Inventor Yukako Nakajima

Yukako Nakajima 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: 20110072268
    Abstract: [Object] To stabilize an operation of a license server by avoiding concentration of license acquisition requests from a large number of clients at a time right after a broadcast start time of a content. [Solving Means] A web server (21) of an IPTV server sets an acquisition request time of a main license within a time period from a broadcast start time to a predetermined set time at random in accordance with an acquisition request of a license for reproducing an encrypted content, the acquisition request being from an IPTV client terminal (10), and transmits, to the IPTV client terminal (10), information on the acquisition request time of the main license and a temporary license including a temporary content key that corresponds to a reproduction of the broadcast content from the broadcast start time to the predetermined set time.
    Type: Application
    Filed: June 8, 2009
    Publication date: March 24, 2011
    Inventors: Yasuaki Yamagishi, Hisato Shima, Tatsuya Igarashi, Kenji Fujisawa, Yoji Kawamoto, Motomasa Futatgami, Yukako Nakajima
  • Publication number: 20100023980
    Abstract: An information processing apparatus includes a content purchase history storage unit in which a content purchase history for each user is stored, a metadata storage unit in which metadata of a plurality of contents is stored, and a metadata retrieval unit to retrieve, upon reception of a metadata retrieval request that is sent from a terminal apparatus of the user via a network and includes information for identifying a user and a retrieval condition, metadata of a content that meets the retrieval condition from the metadata storage unit, judge whether the content retrieved has already been purchased based on the content purchase history of the user that is stored in the content purchase history storage unit, and send a retrieval result of the metadata of the content that includes a judgment result to the terminal apparatus via the network as a metadata retrieval response.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 28, 2010
    Inventors: Yasuaki Yamagishi, Hisato Shima, Tatsuya Igarashi, Kenji Fujisawa, Yoji Kawamoto, Motomasa Futagami, Yukako Nakajima
  • Patent number: 7494415
    Abstract: A gaming machine includes symbol display unit 4 for variably displaying a plurality of symbols, game element acquisition unit 2 for selecting a symbol displayed on the symbol display unit 4 and acquiring a game element based on the selected symbol, game processing unit 3 for performing game processing for players to compete with each other for a move of a piece based on the game element acquired in the game element acquisition unit 2, and game display unit 5 for displaying the processing result of the game processing unit 3.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: February 24, 2009
    Assignee: Aruze Corp.
    Inventor: Yukako Nakajima
  • Publication number: 20050192073
    Abstract: A gaming machine includes symbol display unit 4 for variably displaying a plurality of symbols, game element acquisition unit 2 for selecting a symbol displayed on the symbol display unit 4 and acquiring a game element based on the selected symbol, game processing unit 3 for performing game processing for players to compete with each other for a move of a piece based on the game element acquired in the game element acquisition unit 2, and game display unit 5 for displaying the processing result of the game processing unit 3.
    Type: Application
    Filed: February 17, 2005
    Publication date: September 1, 2005
    Applicant: Aruze Corp.
    Inventor: Yukako Nakajima
  • Publication number: 20050187008
    Abstract: A gaming machine includes symbol display unit 4 for variably displaying a plurality of symbols; game element acquisition unit 2 for selecting a symbol displayed on the symbol display unit 4 and acquiring a game element based on the selected symbol; game processing unit 3 for performing game processing for players to compete with each other for the number of acquired areas based on the game element acquired in the game element acquisition unit 2; and game display unit 5 for displaying the processing result of the game processing unit 3.
    Type: Application
    Filed: February 2, 2005
    Publication date: August 25, 2005
    Applicant: Aruze Corp.
    Inventor: Yukako Nakajima