Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7900578 | Carrying system and processing equipment | Akio Hirose | 2011-03-08 |
| 6037189 | Integrated waveguide device and method of fabricating the integrated waveguide device | — | 2000-03-14 |
| 5991322 | Semiconductor optical device | Tohru Takiguchi, Hirotaka Kizuki | 1999-11-23 |
| 5909523 | Optical module and method of fabricating optical module | Go Sakaino, Toshitaka Aoyagi | 1999-06-01 |
| 5875793 | Hair cover for hair dyeing treatment | — | 1999-03-02 |
| 5684823 | Method of fabricating a diffraction grating and a distributed feedback semiconductor laser incorporating the diffraction grating | Yutaka Mihashi | 1997-11-04 |
| 5671242 | Strained quantum well structure | Tohru Takiguchi | 1997-09-23 |
| 5621564 | Semiconductor optical modulator | Shigeki Kageyama, Toru Takiguchi | 1997-04-15 |
| 5544188 | Semiconductor laser device having a high emission efficiency and a large modulation bandwidth | Tohru Takiguchi | 1996-08-06 |
| 5518955 | Method of fabricating quantum wire | Yutaka Mihashi | 1996-05-21 |
| 5459747 | Semiconductor optical devices | Tohru Takiguchi, Hirotaka Kizuki | 1995-10-17 |
| 5442649 | Semiconductor laser device | Yoshihiro Kokubo, Seiji Minamihara, Kouji Yamashita | 1995-08-15 |
| 5157680 | Integrated semiconductor laser | — | 1992-10-20 |
| 5124279 | Integrated semiconductor laser producing light of different wavelengths at respective active regions | — | 1992-06-23 |
| 5107514 | Semiconductor optical element | — | 1992-04-21 |
| 4957879 | Method of making a semiconductor laser using superlattice disordering | Etsuji Omura, Shogo Takahashi, Harumi Namba, Akira Takemoto | 1990-09-18 |
| 4888781 | Semiconductor laser | Etsuji Omura, Shogo Takahashi, Harumi Namba, Akira Takemoto | 1989-12-19 |
| 4847217 | Method for making a semiconductor device | Etsuji Omura | 1989-07-11 |
| 4809289 | Semiconductor laser device | Hirofumi Namizaki | 1989-02-28 |
| 4788161 | Method of producing an end surface light emission type semiconductor device | Shogo Takahashi, Etsuji Omura | 1988-11-29 |
| 4777543 | Tracking correction for a rotary head by detection of the minimum signal level | Hideo Nishijima, Kaneyuki Okamoto, Hiroshi Usami | 1988-10-11 |
| 4613914 | Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus | Yasunori Kobori, Hideo Nishijima, Kaneyuki Okamoto, Isao Fukushima, Takashi Takahashi | 1986-09-23 |