Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4492928 | Comb filter | Daishiro Hayakawa, Masao Akimoto, Kenroku Tani | 1985-01-08 |
KN
Katsumi Narita
Overall (All Time): #4,008,393 of 4,157,543Top 100%
1
Patents All Time