Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771630 | Agricultural covering material | Yoshiaki Ishisaki, Yasuaki Oonishi | 1998-06-30 |
| 5075557 | Simplified apparatus and method for measuring quantity of ultraviolet radiation received | Yoshihisa Suzuki, Mitsuo Igami | 1991-12-24 |
| 4467035 | Cultivation of phototrophic bacteria in the absence of ultraviolet light | Yukio Hariki, Katsuhiko Maeda, Koichi Nakamura | 1984-08-21 |
| 4235043 | Method for cultivating algae and a covering material used therefor | Yukio Hariki, Katsuhiko Maeda, Kouichi Nakamura | 1980-11-25 |