Patents by Inventor Tomohiro Hayashi

Tomohiro Hayashi 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).

  • Method and apparatus for heterogenous database access by generating different access procedures for different database data structures
    Patent number: 5408652
    Abstract: A database processing system for supporting a plurality of storage structures comprises a dictionary for storing information such as basic data organizations relating to the combination of basic data organizations forming each type of storage structure, library parts names relating to said combination, and assembly pattern names an access parts library for storing information such as access parts to basic data organizations which are access methods to each of said basic data organizations, and library parts relating to the combination of said access parts; and an optimizing unit for generating procedures for processing a database by referring to said dictionary and access parts library in response to an query to a database and by combining said access parts to basic data organizations forming a storage structure and said library parts relating to the combination of said access parts.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: April 18, 1995
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii