Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9793365 | Method for manufacturing silicon carbide semiconductor device having trench | Yu Saitoh, Takeyoshi Masuda | 2017-10-17 |
| 9627487 | Method for manufacturing silicon carbide semiconductor device and silicon carbide semiconductor device | Yu Saitoh, Takeyoshi Masuda | 2017-04-18 |
| 8964809 | Semiconductor optical integrated device | Yoshihiro Yoneda, Masaki Yanagisawa, Kenji Koyama, Hirohiko Kobayashi | 2015-02-24 |
| 8889445 | Method for manufacturing semiconductor optical device and semiconductor optical device | — | 2014-11-18 |
| 8772113 | Method for manufacturing silicon carbide semiconductor device | Takeyoshi Masuda, Yu Saitoh | 2014-07-08 |
| 8637329 | Method for producing semiconductor optical integrated device | Yoshihiro Yoneda, Hirohiko Kobayashi, Kenji Koyama, Masaki Yanagisawa | 2014-01-28 |
| 8637338 | Method for producing integrated optical device | Tomokazu Katsuyama | 2014-01-28 |
| 8597966 | Method for producing semiconductor optical device | — | 2013-12-03 |
| 8563342 | Method of making semiconductor optical integrated device by alternately arranging spacers with integrated device arrays | Yoshihiro Yoneda, Hirohiko Kobayashi, Kenji Koyama, Masaki Yanagisawa | 2013-10-22 |
| 8409889 | Method for producing semiconductor optical device | — | 2013-04-02 |
| 8216868 | Method of fabricating semiconductor laser | — | 2012-07-10 |
| 8039282 | Semiconductor optical device and method of fabricating the same | Manabu Yoshimura, Nobuyuki Ikoma | 2011-10-18 |
| 7947520 | Semiconductor laser and method of making the same | Hideki Yagi, Toshio Nomaguchi | 2011-05-24 |
| 7897422 | Semiconductor light-emitting device and a method to produce the same | — | 2011-03-01 |
| 7807489 | Light-emitting device with a protection layer to prevent the inter-diffusion of zinc (Zn) atoms | Mitsuo Takahashi, Akiko Kumagai | 2010-10-05 |
| 7772023 | Method of producing semiconductor optical device | — | 2010-08-10 |
| 7456040 | Method for producing semiconductor optical device | Kouichiro Yamazaki | 2008-11-25 |
| 6818521 | Method of manufacturing a hetero-junction bipolar transistor with epitaxially grown multi-layer films and annealing at or below 600° C. | — | 2004-11-16 |
| 4186234 | Light transmissible high density elastic resin composition | Kazumi Sakashita, Yutaka Umezu, Nobuo Nakamura, Haruhisa Noda | 1980-01-29 |