Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7838156 | Thickener for alkaline battery and alkaline battery | Kazuya Ohtani | 2010-11-23 |
| 7579115 | Gelling agent for alkaline battery and alkaline battery | Kazuya Ohtani | 2009-08-25 |
| 7470738 | Non-aqueous absorbent and use thereof | Takashi Sumiya, Kazuya Ohtani, Youji Fujiura | 2008-12-30 |
| 7314687 | Gelling agent for alkaline cell and alkaline cell | Takashi Sumiya | 2008-01-01 |