Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6080471 | Non-woven fabric for alkali cell separator and process for producing the same | Toshihiro Shigematsu, Yoshitami Ishikawa | 2000-06-27 |
| 5670247 | Photoreactive noxious substance purging agent and photoreactive noxious substance purging material using the agent | Kazuchiyo Takaoka, Kenji Hyodo, Isao Ebihara, Katsushi Ohgami | 1997-09-23 |
| 5254399 | Nonwoven fabric | Takeshi Yamasaki, Masanobu Matsuoka | 1993-10-19 |