Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857115 | Photovoltaic device | Masayuki Iwamoto, Kouji Minami | 1989-08-15 |
| 4843451 | Photovoltaic device with O and N doping | Tsugufumi Matsuoka, Yukio Nakashima, Hisao Haku | 1989-06-27 |
| 4831429 | Transparent photo detector device | Saburo Nakashima, Shoichiro Nakayama, Shigeru Noguchi, Shoichi Nakano, Yukinori Kuwano +1 more | 1989-05-16 |
| 4799968 | Photovoltaic device | Masayuki Iwamoto, Koji Minami | 1989-01-24 |