Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6423445 | Alkaline battery separators | Kazuya Sato, Masanao Tanaka | 2002-07-23 |
| 6348286 | Alkaline battery separator and process for producing the same | Masanao Tanaka, Kazuya Sato, Yasuhiro Ito, Hiroaki Yamazaki, Masaki Hirooka +1 more | 2002-02-19 |