Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840858 | Secondary cell | Koji Nishio, Noriyuki Yoshinaga | 1989-06-20 |
| 4820599 | Non-aqueous electrolyte type secondary cell | Toshihiko Saito, Ikuro Nakane, Hiroshi Watanabe | 1989-04-11 |
| 4795687 | Electrically conductive material and a process for the preparation of same and secondary battery using the electrically conductive material | Tetsumi Suzuki, Kazumi Hasegawa, Osamu Ando, Koji Nishio | 1989-01-03 |