Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355866 | Stripe-color filter | Kousaku Yano, Yoshitaka Aoki, Shinji Fujiwara | 1982-10-26 |
| 4281406 | Water-proof case for digital electronic timepieces | — | 1981-07-28 |
ET
Eiichiro Tanaka
Fujirebio: 3 patents #39 of 219Top 20%
Citizen Watch Co.: 2 patents #460 of 1,225Top 40%
Nec: 1 patents #7,889 of 14,502Top 55%
Mitsubishi Chemical: 1 patents #294 of 716Top 45%
Overall (All Time): #147,567 of 4,157,543Top 4%
27
Patents All Time