Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6566009 | Alkaline battery | Shinichi Sumiyama, Yasuko Hoshina, Michiko Fujiwara, Yuji Mototani | 2003-05-20 |
| 6541152 | Cylindrical battery and method and device for manufacturing thereof | Yasuhiko Shoji, Seiji Wada, Tadahiro Sawada, Takayuki Aoi, Minoru Koda +2 more | 2003-04-01 |