Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8236406 | Fingerprint easily erasible film | Masuo Koyama, Keiichi Kitahara, Masato Saito, Yoshihisa Kimura | 2012-08-07 |
| 6602596 | Light diffusion sheet | Yoshihisa Kimura, Kenji Fukui, Teruo Ohnuma | 2003-08-05 |