Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6236438 | Optical visualizing apparatus | Isao Sawachika | 2001-05-22 |
| 6043849 | Similar change information takeout method, similar change information takeout apparatus, and teletext receiver | Takeshi Imanaka, Atsushi Tanaka | 2000-03-28 |
| 5789094 | Fuel cell and sealing parts therefore | Akira Kusunoki, Jitsuji Otsuki, Yasuhira Kikuoka, Tatsunori Okada, Mitsuie Matsumura +2 more | 1998-08-04 |
| 5616431 | Fuel cell and its bipolar plate | Akira Kusunoki, Jitsuji Otsuki, Yasuhira Kikuoka, Tatsunori Okada, Mitsuie Matsumura +2 more | 1997-04-01 |
| 5559821 | Semiconductor laser | — | 1996-09-24 |
| 5470767 | Method of making field effect transistor | Takahiro Nakamoto | 1995-11-28 |
| 5363399 | Semiconductor distributed-feedback laser device | — | 1994-11-08 |
| 5347396 | Photovideo camera | Toshio Tomiyoshi, Masami Torizuka, Kenichi Hamano, Mitsuru Hachiya, Motoshi Mizoguchi | 1994-09-13 |
| 5288654 | Method of making a mushroom-shaped gate electrode of semiconductor device | Nobuyuki Kasai, Shinichi Sakamoto, Takuji Sonoda | 1994-02-22 |
| 5272362 | Semiconductor light emitting device | Tsuneo Okada | 1993-12-21 |
| 5220186 | Semiconductor device with a mushroom-shaped gate electrode | Nobuyuki Kasai, Shinichi Sakamoto, Takuji Sonoda | 1993-06-15 |
| 5218439 | Photo video camera device | Motoshi Mizoguchi, Kenichi Hamano, Toshio Tomiyoshi, Masami Torizuka, Mitsuru Hachiya +1 more | 1993-06-08 |
| 5181220 | Semiconductor light emitting light concentration device | — | 1993-01-19 |
| 5173445 | Method of making P-type compound semiconductor employing trimethylgallium, trimethylarsenic and arsine | Koji Ando | 1992-12-22 |
| 5164951 | Semiconductor laser device | Hitoshi Kagawa | 1992-11-17 |
| 5079185 | Method of making a semiconductor laser | Hitoshi Kagawa | 1992-01-07 |
| 5068870 | Semiconductor light emission system | Misao Hironaka | 1991-11-26 |
| 5061643 | Method of doping a growing crystalline semiconductor film | — | 1991-10-29 |
| 5060236 | Semiconductor light emission system | Misao Kironaka | 1991-10-22 |
| 5045500 | Method of making a semiconductor laser | Shigeru Mitsui, Ryo Hattori | 1991-09-03 |
| 5038354 | Semiconductor light emitting, light concentrating device | — | 1991-08-06 |
| 5018158 | Semiconductor laser device | Masato Okada, Masaki Kohno | 1991-05-21 |
| 4984243 | Semiconductor laser device | Hitoshi Kagawa | 1991-01-08 |
| 4964135 | Semiconductor laser | Shigeru Mitsui, Ryo Hattori | 1990-10-16 |
| 4916709 | Semiconductor laser device | Yoichiro Ota | 1990-04-10 |