Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7745038 | Alkaline dry battery and sealing gasket therefor | Kiyohide Tsutsui, Yuji Tsuchida, Yukiyoshi Murakami, Tatsuya Yamazaki, Yuji Takahashi +2 more | 2010-06-29 |
| 7144656 | Alkaline battery sealing gasket and sealed alkaline battery | Kiyohide Tsutsui, Norihisa Watanabe, Yuji Tsuchida | 2006-12-05 |