Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762997 | Method of manufacturing a cathode assembly | Akihito Hara, Toshiharu Higuchi, Shigeo Kanda, Eiji Yamamoto | 1998-06-09 |
| 5543682 | Cathode assembly incorporating a black layer formed from particles having a specified average particle size | Akihito Hara, Toshiharu Higuchi, Shigeo Kanda, Eiji Yamamoto | 1996-08-06 |
| 5027029 | Indirectly heated cathode assembly and its associated electron gun structure | Toshiharu Higuchi, Sadao Matsumoto, Sakae Kimura | 1991-06-25 |