Patents by Inventor Hiroshi Ohsato

Hiroshi Ohsato 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).

  • Patent number: 5881378
    Abstract: A derived database processing system in a database processing device comprises a plurality of independent databases which can provide a plurality of users with a group of data to be shared for a common purpose. The derived database processing system comprises a dictionary for managing database logical definition information and database storage information in a secondary memory, a derived database registering unit for determining a definition frame of a new name without violating a definition frame of a name used in a schema definition which defines data in a database, a dictionary information manipulating means for referring to said dictionary when the manipulation target is a derived database, then selecting necessary components of said database, and a database processing procedure generating unit, in a binding process to optimize access routing in a database.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: March 9, 1999
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii
  • Patent number: 5873088
    Abstract: A derived database processing system in a database processing device comprises a plurality of independent databases which can provide a plurality of users with a group of data to be shared for a common purpose. The derived database processing system comprises a dictionary for managing database logical definition information and database storage information in a secondary memory, a derived database registering unit for determining a definition frame of a new name without violating a definition frame of a name used in a schema definition which defines data in a database, a dictionary information manipulating means for referring to said dictionary when the manipulation target is a derived database, then selecting necessary components of said database, and a database processing procedure generating unit, in a binding process to optimize access routing in a database.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: February 16, 1999
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii
  • Patent number: 5857195
    Abstract: A method of developing a self-describing database management system comprises the steps of holding definition data of a database management system to be developed as data on a database and creating a database management system to be developed by the use of an existing database management system. The database management system to be developed comprises a data definition processing execution program and a bind processing execution program. These two programs include a process to permit access to definition data which form database, and are executed based on the definition data on the database.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: January 5, 1999
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii
  • Patent number: 5742809
    Abstract: A database generic composite structure processing system stores data expressed by a logical structure and generates an access schedule in response to an query. The system comprises a generic composite structure element for storing definition information for associating a partial data comprising a table or a partial table expressed by a logical structure with a composite structure of a database in an independent structure in physical media, and for storing definition information for storing data and an optimizing process element for generating, according to the generic composite structure defined by said generic composite structure means, an executable module which is a concrete result of an access schedule in response to an query.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: April 21, 1998
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii
  • Patent number: 5553303
    Abstract: A database processing system using a multi-processor including a plurality of processor modules each having a local memory connected to an external shared memory. The database processing system includes a composite structure definition control part for defining an administrative processor module for controlling an access to a composite structure of a database which has a storage structure independent of a logical structure; and a maintenance/selection control part in an optimum control processor for providing a function of access-controlling a shared process and a local process when an access request arises for a database composite structure, and for dynamically switching the access control process for the composite structure according to the access frequency notified by each processor module.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: September 3, 1996
    Assignee: Fujitsu Limited
    Inventors: Katsumi Hayashi, Kazuhiko Saitou, Hiroshi Ohsato, Masaaki Mitani, Tomohiro Hayashi, Takashi Obata, Yutaka Sekine, Mitsuhiro Ura, Takuji Ishii
  • 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
  • Patent number: 4368861
    Abstract: A frame connecting member of a kite formed as a unitary body and of an elastic material comprises a main body whose front and rear ends are formed as projections provided with kite string mounting holes and whose center is formed as a base with a through hole in the longitudinal direction for a longitudinal frame member; and supports provided respectively at the right and left outer sides of the base on the same straight line in the direction which perpendicularly intersects the axis of the main body. The supports can be tilted to a certain angle with respect to the straight line and are provided with holes into which are inserted lateral frame members which perpendicularly intersect the through holes. The corners on the main body side of the supports come in contact with the main body so as to prevent any further tilting. The kite string mounting holes are directed in the same direction as that of the through hole of the base.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: January 18, 1983
    Inventor: Hiroshi Ohsato