Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375137 | Semiconductor laser device featuring group III and IV compounds doped with amphoteric impurity to vary electrical resistance according to direction of crystal plane | Yoshiyuki Hirayama, Sumio Sugata | 1994-12-20 |
| 5364481 | Apparatus for manufacturing a thin-film photovoltaic conversion device | Toshiaki Sasaki | 1994-11-15 |
| 5318908 | Method for cultivation of nitrile hydratase-producing pseudomonas | Susumu Seki, Masaru Suto, Koichiro Ryuno, Takanori Fujimoto | 1994-06-07 |