Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7800126 | III-V group compound semiconductor light emitting device and manufacturing method thereof | — | 2010-09-21 |
| 7730069 | Full-text search device performing merge processing by using full-text index-for-registration/ deletion storage part with performing registration/deletion processing by using other full-text index-for-registration/deletion storage part | Yasushi Ogawa, Tetsuya Ikeda, Takuya Hiraoka, Hiroshi Takegawa, Kazushige Asada +1 more | 2010-06-01 |
| 7667269 | Trench gate type semiconductor device | Yukio Tsuzuki, Norihito Tokura, Yoshihiko Ozeki | 2010-02-23 |
| 7664829 | Document managing system, document managing apparatus and document managing method | Futoshi Oseto | 2010-02-16 |
| 7644097 | Full-text search device performing merge processing by using full-text index-for-registration/deletion storage part with performing registration/deletion processing by using other full-text index-for-registration/deletion storage part | Yasushi Ogawa, Tetsuya Ikeda, Takuya Hiraoka, Hiroshi Takegawa, Kazushige Asada | 2010-01-05 |
| 7587677 | Workflow management apparatus and method | Satoshi Imago, Hiroyasu Kurose | 2009-09-08 |
| 7527025 | Internal combustion engine variable compression ratio system | Mitsuo Kadota | 2009-05-05 |
| 7498658 | Trench gate type insulated gate bipolar transistor | Yoshihiko Ozeki | 2009-03-03 |
| 7105859 | Nitride semiconductor light-emitting diode chip and method of manufacturing the same | Toshio Hata | 2006-09-12 |
| 7023026 | Light emitting device of III-V group compound semiconductor and fabrication method therefor | — | 2006-04-04 |
| 6969873 | Nitride gallium compound semiconductor light emission device | Toshio Hata, Taiji Morimoto | 2005-11-29 |
| 6940099 | Semiconductor light emitting element and semiconductor light emitting device | Toshio Hata, Mayuko Fudeta, Masaki Tatsumi | 2005-09-06 |
| 6844572 | Light emitting semiconductor device and method of fabricating the same | Nobuhiko Sawaki, Norikatsu Koide | 2005-01-18 |
| 6603146 | Gallium nitride group compound semiconductor light-emitting device | Toshio Hata, Taiji Morimoto, Takeshi Kamikawa | 2003-08-05 |
| 6555847 | Nitride based semiconductor light emitting element | Toshio Hata, Mayuko Fudeta, Masaki Tatsumi | 2003-04-29 |
| 5680612 | Document retrieval apparatus retrieving document data using calculated record identifier | Kazushige Asada, Hideaki Nakayama, Toshio Itoh, Hiroshi Takegawa, Katsumi Kanasaki +3 more | 1997-10-21 |