Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355375 | Alkaline battery separator and process for producing the same | Masanao Tanaka | 2002-03-12 |
| 6183913 | Alkaline battery separator and process for producing the same | Masanao Tanaka, Koji Kimura | 2001-02-06 |
| 6037079 | Alkaline battery separator and process for producing the same | Masanao Tanaka | 2000-03-14 |
| 6030727 | Alkaline battery separator and process for producing the same | Masanao Tanaka | 2000-02-29 |
| 5290645 | Battery separator and a battery | Masanao Tanaka, Yoshihiko Kondo, Hiroaki Yamazaki, Masaki Hirooka, Koji Kimura | 1994-03-01 |