Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518890 | Impregnated cathode | Sadanori Taguchi, Toshiyuki Aida, Shigehiko Yamamoto | 1985-05-21 |
| 4484883 | Multi-layer extrusion die | Hitoshi Komatsu, Yoshiyuki Mihara | 1984-11-27 |
| 4400648 | Impregnated cathode | Sadanori Taguchi, Toshiyuki Aida, Ushio Kawabe | 1983-08-23 |
| 4399298 | Carboxylic acid ester derivatives of 4-fluorophenol | Shigeru Sugimori, Tetsuhiko Kojima | 1983-08-16 |
| 4291252 | Electron tube cathode | Toshiyuki Aida, Shigehiko Yamamoto, Sadanori Taguchi, Isamu Yuito, Ushio Kawabe +4 more | 1981-09-22 |
| 4260665 | Electron tube cathode and method for producing the same | Toshiyuki Aida, Sadanori Taguchi, Isamu Yuito, Ushio Kawabe, Shigehiko Yamamoto +2 more | 1981-04-07 |