Patents by Inventor Masazumi Yoshikawa

Masazumi Yoshikawa 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: 20050234810
    Abstract: A method for controlling joint purchase reverse auction. The method first determines a contract price for a total procurement amount putting together purchase desires of a plurality of buyers according to a bid by at least one supplier. Then, it calculates a contract price of each buyer from the contract price for the total procurement amount at least according to a purchase scale of the buyer or a procurement price prior to reverse auction of the buyer.
    Type: Application
    Filed: April 20, 2005
    Publication date: October 20, 2005
    Applicant: DeeCorp Limited
    Inventors: Seiji Goto, Satoshi Okada, Katsuhisa Furuichi, Masazumi Yoshikawa, Hitomi Matsumoto
  • Publication number: 20050234808
    Abstract: A reverse auction method implemented by a server connected to a plurality of buyer terminals and a plurality of supplier terminals through a network. The method selects desired purchase terms as candidates forjoint purchase from desired purchase terms received from the plurality of buyer terminals, and transmits an invitation to participate in joint purchase to a buyer terminal of a buyer corresponding to at least the selected desired purchase terms. Then, the method receives a participation response to the invitation from a buyer terminal of a buyer intending to participate in reverse auction and determining a combination of buyers participating in joint purchase according to the participation response.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 20, 2005
    Applicant: DeeCorp Limited
    Inventors: Seiji Goto, Satoshi Okada, Katsuhisa Furuichi, Masazumi Yoshikawa, Hitomi Matsumoto
  • Publication number: 20050182716
    Abstract: An information processing system to implement reverse auction for a price list is disclosed. The system includes a price list storage unit storing an individual transaction value when a supplier performs transaction under a reference transaction condition as a price list of a supplier, a requirement storage unit storing a tentative number of transaction times used in the reverse auction in association with the reference transaction condition; and a reverse auction unit performing the reverse auction where a bidder is a supplier and a bid price is a total amount of individual transaction values when assuming to perform the tentative number of times of transactions under each reference transaction condition with reference to the price list storage unit and the requirement storage unit.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 18, 2005
    Inventors: Katsuhisa Furuichi, Kentaro Taniguchi, Masazumi Yoshikawa
  • Publication number: 20010049683
    Abstract: A data calculator for calculating a data structure is provided, which can easily cope with a change of an existing data structure. The calculator comprises a data structure network storage section in which already generated data structures, a calculation method used for generating each data structure based on other data structures, and said other data structures are stored in a format by which dependence relationships between these stored data are detectable; and a managing section. When revision of an existing data structure (or revision of a cell value or a frame), or of an existing calculation method is directed, then the managing section revises a target data and also revises data structures which depend on revised data with reference to the data structure network storage section.
    Type: Application
    Filed: July 2, 1998
    Publication date: December 6, 2001
    Inventor: MASAZUMI YOSHIKAWA
  • Patent number: 6327592
    Abstract: A data calculator for calculating a data structure. The calculator has a data structure network storage section in which already generated data structures are stored and a calculation section used for generating each data structure based on other data structures. The other data structures are stored in a format by which dependence relationships between the stored data are detectable. A managing section is further provided. When revision of an existing data structure (or revision of a cell value or a frame), or of an existing calculation method is input, the managing section revises a target data and also revises data structures which depend on revised data with reference to the data structure network storage section.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: December 4, 2001
    Assignee: NEC Corporation
    Inventor: Masazumi Yoshikawa