Issued Patents All Time
Showing 51–75 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498050 | Bipolar transistor, semiconductor light emitting device and semiconductor device | — | 2002-12-24 |
| 6404792 | Semiconductor light-emitting device | Masahiro Yamamoto, Shin-Ya Nunoue | 2002-06-11 |
| D456378 | Portable telephone | — | 2002-04-30 |
| 6359919 | Gallium nitride-based compound semiconductor laser and method of manufacturing the same | Masayuki Ishikawa, Masahiro Yamamoto, Shinya Nunoue, Johji Nishio, Genichi Hatakoshi | 2002-03-19 |
| 6281524 | Semiconductor light-emitting device | Masahiro Yamamoto, Shin-Ya Nunoue | 2001-08-28 |
| 6258617 | Method of manufacturing blue light emitting element | Koichi Nitta, Masayuki Ishikawa | 2001-07-10 |
| 6252894 | Semiconductor laser using gallium nitride series compound semiconductor | Katsunobu Sasanuma, Shinji Saito, Genichi Hatakoshi, Kazuhiko Itaya, Masaaki Onomura +4 more | 2001-06-26 |
| 6242761 | Nitride compound semiconductor light emitting device | John Rennie, Masahiro Yamamoto, Masayuki Ishikawa, Shinya Nunoue, Lisa Sugiura | 2001-06-05 |
| 6233520 | Map data access method for navigation and navigation system | Toru Ito, Akimasa Nanba, Hiroshi Takeuchi, Fumihiko Matsumura, Nobuyuki Nakano | 2001-05-15 |
| 6204084 | Nitride system semiconductor device and method for manufacturing the same | Lisa Sugiura, Mariko Suzuki, Kazuhiko Itaya, Johji Nishio, John Rennie +1 more | 2001-03-20 |
| 6184799 | Monitoring apparatus and control apparatus for traffic signal lights | Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Junya Toda +2 more | 2001-02-06 |
| 6147364 | Compound semiconductor device formed of nitrogen-containing gallium compound such as gan, algan or ingan | Kazuhiko Itaya, Johji Nishio, Mariko Suzuki, Lisa Sugiura | 2000-11-14 |
| D431251 | Facsimile machine | — | 2000-09-26 |
| 6121634 | Nitride semiconductor light emitting device and its manufacturing method | Shinji Saito, Genichi Hatakoshi, Masaaki Onomura, Norio Iizuka, Chiharu Nozaki +2 more | 2000-09-19 |
| 6119066 | Vehicle navigation system and method for setting direction labels for connecting roads | Wataru Sugiura, Osamu Kanematsu | 2000-09-12 |
| 6118801 | Gallium nitride-based compound semiconductor laser and method of manufacturing the same | Masayuki Ishikawa, Masahiro Yamamoto, Shinya Nunoue, Johji Nishio, Genichi Hatakoshi | 2000-09-12 |
| 6080599 | Semiconductor optoelectric device and method of manufacturing the same | Masahiro Yamamoto, Yoshihiro Kokubun, Masayuki Ishikawa, Shinji Saito, Yukie Nishikawa +1 more | 2000-06-27 |
| 6057565 | Semiconductor light emitting device including a non-stoichiometric compound layer and manufacturing method thereof | Hiroaki Yoshida, Masayuki Ishikawa, Yoshihiro Kokubun, Genichi Hatakoshi | 2000-05-02 |
| 5998810 | Semiconductor light-emitting diode having a p-type semiconductor layer formed on a light-emitting layer | Ako Hatano, Yasuo Ohba, Kazuhiko Itaya, Johji Nishio | 1999-12-07 |
| 5994205 | Method of separating semiconductor devices | Masahiro Yamamoto | 1999-11-30 |
| 5987048 | Gallium nitride-based compound semiconductor laser and method of manufacturing the same | Masayuki Ishikawa, Masahiro Yamamoto, Shinya Nunoue, Johji Nishio, Genichi Hatakoshi | 1999-11-16 |
| 5966396 | Gallium nitride-based compound semiconductor laser and method of manufacturing the same | Haruhiko Okazaki, Masayuki Ishikawa, Shinya Nunoue, Genichi Hatakoshi, Masahiro Yamamoto | 1999-10-12 |
| 5932896 | Nitride system semiconductor device with oxygen | Lisa Sugiura, Mariko Suzuki, Kazuhiko Itaya, Johji Nishio, John Rennie +1 more | 1999-08-03 |
| 5903017 | Compound semiconductor device formed of nitrogen-containing gallium compound such as GaN, AlGaN or InGaN | Kazuhiko Itaya, Johji Nishio, Mariko Suzuki, Lisa Sugiura | 1999-05-11 |
| 5864171 | Semiconductor optoelectric device and method of manufacturing the same | Masahiro Yamamoto, Yoshihiro Kokubun, Masayuki Ishikawa, Shinji Saito, Yukie Nishikawa +1 more | 1999-01-26 |