Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5234799 | Photochromic material and rewritable optical recording medium | Suguru Nagae, Kenji Nomura, Kazuhiko Tsutsumi, Yoshiyuki Nakaki | 1993-08-10 |
ST
Sei Tsuroda
Overall (All Time): #3,830,405 of 4,157,543Top 95%
1
Patents All Time