Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7402539 | Battery separator | Toshiaki Takase, Yoshihiko Kondo, Masanao Tanaka | 2008-07-22 |
| 6468651 | Nonwoven fabric containing fine fiber, and a filter material | Toshio Aikawa, Takashi Tarao, Hitoshi Kobayashi | 2002-10-22 |
| 6284680 | Nonwoven fabric containing fine fibers, and a filter material | Toshio Aikawa, Takashi Tarao, Hitoshi Kobayashi | 2001-09-04 |
| 5733625 | Non-woven fabric | Hideo Tsuchiya, Mitsuru Fujihashi, Yoshisato Miyakoshi, Takahiro Yokoyama, Toshiaki Hirohashi | 1998-03-31 |