Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8986590 | Polymer article and method for producing polymer article | Hironori Tabata, Hiroyuki Hirano, Akira Nakasuga | 2015-03-24 |
| 8790567 | Electret sheet | Takazumi Okabayashi, Yoshiro Tajitsu | 2014-07-29 |