Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7599910 | Method and system of database divisional management for parallel database system | Masashi Tsuchida, Kazuo Masai | 2009-10-06 |
| 7324992 | Database processing method and system | Norihiro Hara, Nobuo Kawamura, Yoshito Kamegi | 2008-01-29 |
| 6567806 | System and method for implementing hash-based load-balancing query processing in a multiprocessor database system | Masashi Tsuchida, Yukio Nakano, Nobuo Kawamura, Kazuyoshi Negishi | 2003-05-20 |
| 6556988 | Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code | Masashi Tsuchida, Yukio Nakano, Nobuo Kawamura, Kazuyoshi Negishi | 2003-04-29 |
| 6556986 | Database management method of invoking a function retrieving index type definition, cataloging particular index which has not yet been supported by a database system | Norihiro Hara, Nobuo Kawamura, Yoshito Kamegi | 2003-04-29 |
| 6510428 | Method and system of database divisional management for parallel database system | Masashi Tsuchida, Kazuo Masai | 2003-01-21 |
| 6349305 | Method and system for database processing by invoking a function related to index type definition, generating an execution plan based on index type name | Norihiro Hara, Nobuo Kawamura, Yoshito Kamegi | 2002-02-19 |
| 6256621 | Database management system and query operation therefor, including processing plural database operation requests based on key range of hash code | Masashi Tsuchida, Yukio Nakano, Nobuo Kawamura, Kazuyoshi Negishi | 2001-07-03 |
| 6192359 | Method and system of database divisional management for parallel database system | Masashi Tsuchida, Kazuo Masai | 2001-02-20 |
| 6101495 | Method of executing partition operations in a parallel database system | Masashi Tsuchida, Kazuo Masai | 2000-08-08 |
| 6026394 | System and method for implementing parallel operations in a database management system | Masashi Tsuchida, Yukio Nakano, Nobuo Kawamura, Kazuyoshi Negishi | 2000-02-15 |
| 6003043 | Text data registering and retrieving system including a database storing a plurality of document files therin and a plural-character occurrence table for a text index and an update text buffer to retrieve a target document in cooperation with the database | Atsushi Hatakeyama, Nobuo Kawamura, Yasushi Kawashimo | 1999-12-14 |
| 5813005 | Method and system of database divisional management for parallel database system | Masashi Tsuchida, Kazuo Masai | 1998-09-22 |
| 5806059 | Database management system and method for query process for the same | Masashi Tsuchida, Yukio Nakano, Nobuo Kawamura, Kazuyoshi Negishi | 1998-09-08 |
| 5574881 | High capacity data storage method and system using independently controlled heads and circuitry for monitoring access frequency of data records | Hiroshi Yasuoka, Yoshito Tsunoda, Takeshi Maeda, Yoshihisa Kamo, Hiromichi Fujisawa +1 more | 1996-11-12 |
| 5295252 | Data storage device | Shigeo Nagashima, Koichiro Omoda | 1994-03-15 |
| 5146599 | System for fetching a plurality vector-data groups using a plurality of addressing device | Keiji Kojima | 1992-09-08 |
| 5115392 | Method and apparatus for multi-transaction batch processing | Yoshifumi Takamoto | 1992-05-19 |
| 5109523 | Method for determining whether data signals of a first set are related to data signal of a second set | Yasusi Kanada, Keiji Kojima | 1992-04-28 |
| 4885678 | Vector processor for processing database without special tags for vector elements | Keiji Kojima, Akiharu Sakata | 1989-12-05 |
| 4839799 | Buffer control method for quickly determining whether a required data block is in the buffer | Masami Takahashi, Eiji Tatsukawa, Keiji Kojima | 1989-06-13 |
| 4825361 | Vector processor for reordering vector data during transfer from main memory to vector registers | Koichiro Omoda, Shigeo Nagashima, Yasuhiro Inagami, Takayuki Nakagawa | 1989-04-25 |
| 4809161 | Data storage device | Shigeo Nagashima, Koichiro Omoda | 1989-02-28 |
| 4785400 | Method for processing a data base | Keiji Kojima | 1988-11-15 |
| 4780810 | Data processor with associative memory storing vector elements for vector conversion | Keiji Kojima, Noriyasu Ido | 1988-10-25 |