Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6607859 | Alkaline battery separator and process for producing the same | Masaki Hirooka, Toshiaki Takase | 2003-08-19 |
| 6586137 | Battery separator | Hiroaki Yamazaki, Yoshihiko Kondo, Keisuke Takahashi, Toshiaki Takase, Shinji Oota | 2003-07-01 |