Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308607 | Semiconductor laser element, method for manufacturing same, and semiconductor laser device | Chikara Watatani, Takehiro Nishida | 2025-05-20 |
| 12176675 | Semiconductor laser device | Yuji Iwai, Kyosuke Kuramoto | 2024-12-24 |
| 7602830 | Monolithic semiconductor laser and method of manufacturing the same | Takehiro Nishida, Tsutomu Yamaguchi | 2009-10-13 |
| 7260132 | Semiconductor laser apparatus | Takehiro Nishida, Tsutomu Yamaguchi | 2007-08-21 |
| 6414977 | Semiconductor laser device | Motoko Sasaki, Ken-ichi Ono | 2002-07-02 |
| 6333946 | Semiconductor laser device and process for manufacturing the same | Harumi Nishiguchi, Akihiro Shima, Yuji Ohkura | 2001-12-25 |
| 6275515 | Semiconductor laser device and method of producing the same | Yutaka Nagai, Yutaka Mihashi, Yasutomo Kajikawa | 2001-08-14 |
| 5903587 | Stress compensation type semiconductor laser | — | 1999-05-11 |
| 5887011 | Semiconductor laser | Yuji Ohkura, Shoichi Karakida | 1999-03-23 |
| 5882952 | Semiconductor device including quantum wells or quantum wires and method of making semiconductor device | Hirotaka Kizuki | 1999-03-16 |
| 5838704 | Pulsation laser having an active region with a thicker central region in a resonator length direction | Yutaka Mihashi, Shoichi Karakida | 1998-11-17 |
| 5835516 | Semiconductor laser device and method of fabricating semiconductor laser device | Hirotaka Kizuki, Yasuaki Yoshida, Yutaka Mihashi, Yasutomo Kajikawa, Shoichi Karakida +1 more | 1998-11-10 |
| 5822350 | Semiconductor laser | Takashi Nishimura, Shoichi Karakida, Diethard Marx | 1998-10-13 |
| 5805628 | Semiconductor laser | Shoichi Karakida, Norio Hayafuji, Tatsuya Kimura, Hirotaka Kizuki, Takashi Nishimura | 1998-09-08 |
| 5675601 | Semiconductor laser device | Shoichi Karakida, Yutaka Mihashi | 1997-10-07 |
| 5673283 | Semiconductor device and fabricating method thereof | Yasutomo Kajikawa, Shoichi Karakida, Akihiro Shima | 1997-09-30 |
| 5477325 | Method for evaluating epitaxial layers and test pattern for process evaluation | Nobuyoshi Ogasawara, Tadashi Kimura | 1995-12-19 |
| 5439723 | Substrate for producing semiconductor wafer | Norio Hayafuji, Yutaka Mihashi | 1995-08-08 |
| 5436196 | Method of producing semiconductor laser | — | 1995-07-25 |
| 5279077 | Method for producing semiconductor wafer | Norio Hayafuji, Yutaka Mihashi | 1994-01-18 |