Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633650 | Flat-type fluorescent display device | Takao Kishino, Shigeo Itoh, Tatsuo Yamaura, Kazuyoshi Ohtsu, Masateru Taniguchi | 1997-05-27 |
| 5612587 | Field emission cathode | Shigeo Itoh, Kazuhiko Tsuburaya, Junji Itoh, Seigo Kanemaru | 1997-03-18 |
| 5594298 | Field emission cathode device | Shigeo Itoh, Takahiro Niiyama | 1997-01-14 |
| 5589738 | Field emission type display device | Koji Onodaka, Katsuya Hiraga, Yoichi Kobori, Hiroshi Sakurada, Shigeo Itoh | 1996-12-31 |
| 5564958 | Method for manufacturing display device | Shigeo Itoh, Mikio Yokoyama, Takeshi Tonegawa, Yuji Uchida | 1996-10-15 |
| 5527514 | Desulfurizing and denitrating tower | Hiromi Tanaka, Kouji Kobayashi | 1996-06-18 |
| 5469014 | Field emission element | Shigeo Itoh, Makoto Miyamori, Norio Nishimura, Junji Itoh, Seigo Kanemaru | 1995-11-21 |
| 5381069 | Field emission element and process for manufacturing same | Shigeo Itoh, Hisashi Nakata, Norio Nishimura, Junji Itoh, Seigo Kanemaru | 1995-01-10 |
| 5256936 | Image display device | Shigeo Itoh, Hisashi Nakata, Norio Nishimura, Junji Itoh, Seigo Kanemaru | 1993-10-26 |
| 5189341 | Electron emitting element | Shigeo Itoh, Hisashi Nakata, Toshinori Takagi | 1993-02-23 |
| 5129963 | Rare earth magnet alloys with excellent hot workability | Viswanathan Panchanathan, Yasuaki Kasai, Norio Yoshikawa, Yutaka Yoshida | 1992-07-14 |
| 5122319 | Method of forming thin-walled elongated cylindrical compact for a magnet | Yasuaki Kasai, Hiyoshi Yamada, Norio Yoshikawa, Yutaka Yoshida | 1992-06-16 |
| 4963320 | Method and apparatus for producing anisotropic rare earth magnet | Makoto Saito, Shinichiro Yahagi, Yasuaki Kasai, Norio Yoshikawa, Yutaka Yoshida +2 more | 1990-10-16 |
| 4835445 | Fluorescent display device | Tatsuo Yamaura | 1989-05-30 |
| 4447959 | Instrument for measuring internal dimensions | Masaaki Ishikawa | 1984-05-15 |