Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679176 | Group of solar cell elements, and solar cell module and production method thereof | Koji Tsuzuki, Takeshi Takada, Yoshifumi Takeyama | 1997-10-21 |
| 5667596 | Photovoltaic device and manufacturing method of the same | Koji Tsuzuki, Takeshi Takada, Yoshifumi Takeyama | 1997-09-16 |
| 5631100 | Secondary battery | Akira Yoshino, Yumiko Takizawa, Akira Koyama, Masataka Yamashita, Yasufumi Minato +1 more | 1997-05-20 |