Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7918021 | Production of via hole in a flexible printed circuit board by applying a laser or punch | Tadahiro Yokozawa, Hiroaki Yamaguchi, Osamu Nakayama | 2011-04-05 |
| 6627346 | Battery separator and lithium secondary battery | Masayuki Kinouchi, Tetsuo Akazawa, Takashi Oe, Kenji Kawabata, Yuuji Nakakita | 2003-09-30 |