Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5889725 | Decoder circuit for a semiconductor memory device | Tadao Aikawa, Hirohiko Mochizuki, Shusaku Yamaguchi, Koichi Nishimura | 1999-03-30 |
| 5874853 | Semiconductor integrated circuit system | Shusaku Yamaguchi, Masato Takita, Tadao Aikawa, Hirohiko Mochizuki | 1999-02-23 |
| 5862094 | Semiconductor device and a semiconductor memory device | Kuninori Kawabata | 1999-01-19 |
| 5828613 | Random-access memory | Shusaku Yamaguchi | 1998-10-27 |
| 5767712 | Semiconductor device | Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki +3 more | 1998-06-16 |
| 5761151 | Pulse generator for generating a plurality of output pulses in response to an input pulse | — | 1998-06-02 |
| 5757983 | Document retrieval method and system | Hisamitsu Kawaguchi, Mitsuru Akizawa, Kanji Kato, Hiromichi Fujisawa | 1998-05-26 |
| 5757691 | Semiconductor memory device having wiring for selection of redundant cells but without useless region on chip | — | 1998-05-26 |
| 5748953 | Document search method wherein stored documents and search queries comprise segmented text data of spaced, nonconsecutive text elements and words segmented by predetermined symbols | Natsuko Mizutani, Hisamitsu Kawaguchi, Katsumi Tada, Kanji Kato, Satoshi Asakawa | 1998-05-05 |
| 5745745 | Text search method and apparatus for structured documents | Katsumi Tada, Hisamitsu Kawaguchi, Natsuko Mizutani, Kanji Kato, Satoshi Asakawa | 1998-04-28 |
| 5696564 | Video projector | — | 1997-12-09 |
| 5668763 | Semiconductor memory for increasing the number of half good memories by selecting and using good memory blocks | Shinya Fujioka, Hirohiko Mochizuki | 1997-09-16 |
| 5628003 | Document storage and retrieval system for storing and retrieving document image and full text data | Hiromichi Fujisawa, Yasuaki Nakano, Junichi Higashino, Toshihiro Hananoi | 1997-05-06 |
| 5617364 | Semiconductor memory device | — | 1997-04-01 |
| 5555408 | Knowledge based information retrieval system | Hiromichi Fujisawa, David Cohn, Itsuko Kiuchi | 1996-09-10 |
| 5553226 | System for displaying concept networks | Itsuko Kiuchi, Hiromichi Fujisawa, Minoru Wakabayashi | 1996-09-03 |
| 5519857 | Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus | Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Noriyuki Kaneoka +4 more | 1996-05-21 |
| 5508565 | Semiconductor device having a plurality of chips having identical circuit arrangement sealed in package | Fumio Baba, Junichi Kasai, Mitsutaka Sato | 1996-04-16 |
| 5469354 | Document data processing method and apparatus for document retrieval | Hiromichi Fujisawa, Kanji Kato, Hisamitsu Kawaguchi, Naoki Minegishi, Katsumi Tada +1 more | 1995-11-21 |
| 5454105 | Document information search method and system | Kanji Kato, Satoshi Asakawa, Hisamitsu Kawaguchi | 1995-09-26 |
| 5452451 | System for plural-string search with a parallel collation of a first partition of each string followed by finite automata matching of second partitions | Mitsuru Akizawa, Hisamitsu Kawaguchi, Kanji Kato, Kouki Noguchi, Hiromichi Fujisawa | 1995-09-19 |
| 5420869 | Semiconductor integrated circuit device | — | 1995-05-30 |
| 5404506 | Knowledge based information retrieval system | Hiromichi Fujisawa, David Cohn, Itsuko Kiuchi | 1995-04-04 |
| 5321423 | Document information system and document data transfer and display method | Satoshi Yoshizawa, Kanji Kato, Seiji Kashioka, Junichi Higashino | 1994-06-14 |
| 5278981 | Character stream search apparatus using a finite state automation | Hisamitsu Kawaguchi, Kanji Kato, Hiromichi Fujisawa, Masaaki Fujinawa | 1994-01-11 |