Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11062871 | Analog amplification vacuum tube | Kazunori Tatsuda, Takehiro Nakao | 2021-07-13 |
| 6917157 | Electrode for electron source, method for producing the same, and electronic tube using the same | Sashiro Uemura, Junko Yotani, Hiromu Yamada, Takeshi Nagasako, Hiroyuki Kurachi +3 more | 2005-07-12 |
| 6914380 | Vacuum fluorescent display having x-ray shielding cap | Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hiroyuki Kurachi, Hiromu Yamada | 2005-07-05 |