Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681673 | Alkaline secondary battery | Yohei Hattori, Hiroki Takeshima, Hideo Kaiya, Munehisa Ikoma | 1997-10-28 |
| 5601946 | Rectangular sealed alkaline storage battery and module battery thereof | Yohei Hattori, Hiromu Matsuda, Munehisa Ikoma | 1997-02-11 |