Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8415682 | Light emitting semiconductor device having an improved outward luminosity efficiency and fabrication method for the light emitting semiconductor device | Yasuo Nakanishi, Kazuaki Tsutsumi | 2013-04-09 |
| 8222655 | Semiconductor light-emitting device and process for producing the same | Kazuaki Tsutsumi, Norikazu Ito, Shinichi Tamai | 2012-07-17 |
| 8124985 | Semiconductor light emitting device and method for manufacturing the same | Mitsuhiko Sakai, Atsushi Yamaguchi, Ken Nakahara, Tsuyoshi Tsutsui | 2012-02-28 |
| 8093606 | Nitride semiconductor light emitting device | Norikazu Ito, Mitsuhiko Sakai | 2012-01-10 |
| 8030669 | Semiconductor light emitting device | Yukio Shakuda, Toshio Nishida | 2011-10-04 |
| 7501662 | Semiconductor light emitting element array illuminator using the same | Yukio Shakuda | 2009-03-10 |
| 7375380 | Semiconductor light emitting device | Hirokazu Asahara, Mitsuhiko Sakai, Toshio Nishida | 2008-05-20 |
| 6983003 | III-V nitride semiconductor laser device | Yoshinori Kimura, Atsushi Watanabe | 2006-01-03 |
| 6693303 | Nitride semiconductor device and method for manufacturing the same | Hiroyuki Ota, Norikazu Ito, Tetsuo Fujii | 2004-02-17 |
| 6670204 | Semiconductor light emitting device and method for manufacturing the same | Tetsuhiro Tanabe | 2003-12-30 |
| 6469320 | Semiconductor light emitting device | Tetsuhiro Tanabe | 2002-10-22 |
| 6258619 | Fabrication of semiconductor light emitting device | Shunji Nakata, Yukio Shakuda, Tsuyoshi Tsutsui, Norikazu Itoh | 2001-07-10 |
| 6197609 | Method for manufacturing semiconductor light emitting device | Tsuyoshi Tsutsui, Norikazu Ito | 2001-03-06 |
| 6194241 | Semiconductor light emitting device and method of manufacturing the same | Tsuyoshi Tsutsui, Shunji Nakata, Yukio Shakuda, Norikazu Itoh | 2001-02-27 |
| 6191437 | Semiconductor light emitting device and method of manufacturing the same | Shunji Nakata, Tsuyoshi Tsutsui, Norikazu Itoh | 2001-02-20 |
| 6168962 | Method of manufacturing a semiconductor light emitting device | Norikazu Itoh, Shunji Nakata, Yukio Shakuda, Tsuyoshi Tsutsui | 2001-01-02 |
| 6167519 | Secret information protection system | — | 2000-12-26 |
| 6156584 | Method of manufacturing a semiconductor light emitting device | Norikazu Itoh, Shunji Nakata, Yukio Shakuda, Tsuyoshi Tsutsui | 2000-12-05 |
| 6107644 | Semiconductor light emitting device | Yukio Shakuda, Shunji Nakata, Tsuyoshi Tsutsui, Norikazu Itoh | 2000-08-22 |
| 6054716 | Semiconductor light emitting device having a protecting device | Tsuyoshi Tsutsui, Shunji Nakata, Norikazu Itoh, Shinji Isokawa, Hidekazu Toda | 2000-04-25 |
| 5939735 | Semiconductor light emitting device | Tsuyoshi Tsutsui, Shunji Nakata, Yukio Shakuda, Norikazu Itoh | 1999-08-17 |
| 5572696 | Secret information protection system erasing secret information upon detection of authorized user-initiated event | — | 1996-11-05 |
| 5404520 | Data input/output control system | — | 1995-04-04 |
| 5377309 | Software work tool | Ayumi Ishizaki, Tatsuo Kondoh | 1994-12-27 |
| 5366849 | Photoresist pattern formation through etching where the imaging exposure changes in a given direction in the desired pattern and inclined vapor deposition is utilized to deposit a film | Yoshikazu Nakagawa | 1994-11-22 |