Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34752 | Alkaline battery with a nickel electrode | Masahiko Oshitani, Heiichi Hasegawa | 1994-10-04 |
| 4985318 | Alkaline battery with a nickel electrode | Masahiko Oshitani, Keiichi Hasegawa | 1991-01-15 |
| 4844999 | Nickel electrode for alkaline battery and battery using said nickel electrode | Masahiko Oshitani | 1989-07-04 |