Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8080336 | Alkaline dry battery | Hidekatsu Izumi, Susumu Kato, Kenji Yamamoto, Shinichi Sumiyama | 2011-12-20 |
| 6004687 | Cylindrical alkaline battery | Takeshi Okubo, Yoko Noda, Masanobu Abe | 1999-12-21 |
| 5316557 | Manufacturing process of alkaline cell | Akira Iwase, Toshikazu Kaneko, Isao Kubo, Koichi Sato | 1994-05-31 |
| 4869978 | Cylindrical alkaline batteries | Isao Kubo, Toshikazu Kaneko, Yoji Kajikawa, Junichi Asaoka, Jun Miyoshi | 1989-09-26 |