Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6358316 | Method for producing semiconductor device, method for producing semiconductor laser device, and method for producing quantum wire structure | Hirotaka Kizuki, Tatsuya Kimura | 2002-03-19 |
| 6037242 | Method of making hetero-structure | Yoshitsugu Yamamoto | 2000-03-14 |
| 5874753 | Field effect transistor | Yoshitsugu Yamamoto | 1999-02-23 |
| 5811843 | Field effect transistor | Yoshitsugu Yamamoto | 1998-09-22 |
| 5805628 | Semiconductor laser | Shoichi Karakida, Tatsuya Kimura, Motoharu Miyashita, Hirotaka Kizuki, Takashi Nishimura | 1998-09-08 |
| 5796127 | High electron mobility transistor | Yoshitsugu Yamamoto, Hirotaka Kizuki | 1998-08-18 |
| 5764673 | Semiconductor light emitting device | Zempei Kawazu, Diethard Marx | 1998-06-09 |
| 5760426 | Heteroepitaxial semiconductor device including silicon substrate, GaAs layer and GaN layer #13 | Diethard Marx, Zempei Kawazu | 1998-06-02 |
| 5729030 | Semiconductor device | Yoshitsugu Yamamoto | 1998-03-17 |
| 5728215 | Method for forming a film by selective area MOCVD growth | Takushi Itagaki, Masayoshi Takemi | 1998-03-17 |
| 5701321 | Semiconductor laser producing short wavelength light | Zempei Kawazu | 1997-12-23 |
| 5682045 | Method of fabricating semiconductor device and semiconductor device fabricated thereby | Yoshitsugu Yamamoto | 1997-10-28 |
| 5677922 | Semiconductor laser with crystalline window layer | Takashi Motoda | 1997-10-14 |
| 5602414 | Infrared detector having active regions and isolating regions formed of CdHgTe | Kotaro Mitsui, Zenpei Kawazu, Kazuo Mizuguchi, Seiji Ochi, Yuji Ohkura +4 more | 1997-02-11 |
| 5573960 | Method of manufacturing semiconductor layers by bonding without defects created by bonding | Shigekazu Izumi | 1996-11-12 |
| 5467731 | Method of producing a semiconductor structure including a recrystallized film | Satoshi Arimoto, Mikio Deguchi, Satoshi Hamamoto | 1995-11-21 |
| 5439723 | Substrate for producing semiconductor wafer | Motoharu Miyashita, Yutaka Mihashi | 1995-08-08 |
| 5426658 | Semiconductor laser including ridge confining buffer layer | Nobuaki Kaneno, Hirotaka Kizuki, Tetsuo Shiba, Hitoshi Tada | 1995-06-20 |
| 5420066 | Method for producing semiconductor laser device using etch stop layer | Akihiro Shima, Takeshi Miura, Tomoko Kadowaki | 1995-05-30 |
| 5394417 | Semiconductor laser producing visible light | Masayoshi Takemi, Wataru Susaki | 1995-02-28 |
| 5387544 | Method of making a semiconductor device including carbon as a dopant | — | 1995-02-07 |
| 5357535 | Semiconductor laser including an aluminum-rich AlGaAs etch stopping layer | Akihiro Shima, Takeshi Miura, Tomoko Kadowaki | 1994-10-18 |
| 5316967 | Method for producing semiconductor device | Nobuaki Kaneno, Hirotaka Kizuki, Tetsuo Shiba, Hitoshi Tada | 1994-05-31 |
| 5315133 | Compound semiconductor structure including p-type and n-type regions doped with carbon | — | 1994-05-24 |
| 5279077 | Method for producing semiconductor wafer | Motoharu Miyashita, Yutaka Mihashi | 1994-01-18 |