Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5432812 | Semiconductor laser device with multi-directional reflector arranged therein | Atsushi Kurobe, Tsutomu Tezuka, Mitsuhiro Kushibe, Yoshita Kawakyu | 1995-07-11 |
| 5253262 | Semiconductor laser device with multi-directional reflector arranged therein | Atsushi Kurobe, Tsutomu Tezuka, Mitsuhiro Kushibe, Yoshito Kawakyu | 1993-10-12 |
| 5144381 | Semiconductor light detector utilizing an avalanche effect and having an improved guard ring structure | Hideto Furuyama | 1992-09-01 |
| 5084410 | Method of manufacturing semiconductor devices | Kazuhiro Eguchi, Hideto Furuyama, Yuzo Hirayama | 1992-01-28 |
| 5001335 | Semiconductor photodetector device and method of manufacturing the same | Keiji Takaoka, Motoyasu Morinaga, Nobuo Suzuki, Kenji Matsumoto | 1991-03-19 |
| 4992386 | Method of manufacturing a semiconductor light detector | Hideto Furuyama | 1991-02-12 |
| 4949144 | Semiconductor photo-detector having a two-stepped impurity profile | Fumihiko Kuroda, Nobuo Suzuki, Masaru Nakamura | 1990-08-14 |
| 4706101 | Light emitting diode formed of a compound semiconductor material | Masaru Nakamura, Masaki Okajima, Tadashi Komatsubara, Koichi Nitta | 1987-11-10 |
| 4647927 | Display device | Osamu Ichikawa | 1987-03-03 |
| 4625223 | Double heterostructure light-emitting semiconductor device | Tadashi Komatsubara | 1986-11-25 |
| 4465543 | Apparatus and method for arranging semiconductor pellets | Osamu Ichikawa, Tatsuro Beppu | 1984-08-14 |
| 4445132 | LED Module for a flat panel display unit | Osamu Ichikawa | 1984-04-24 |
| 4432131 | Method for manufacturing display device | Osamu Ichikawa | 1984-02-21 |
| 4322735 | Display device | Osamu Ichikawa | 1982-03-30 |
| 4228455 | Gallium phosphide semiconductor device having improved electrodes | Nobuaki Yasuda, Takenobu OGAWA | 1980-10-14 |