Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11062871 | Analog amplification vacuum tube | Takehiro Nakao, Tomotaka Ezaki | 2021-07-13 |
| 9620323 | Vacuum tube | Tadami Maeda, Misa Yamanaka, Fumio Mieda | 2017-04-11 |
| 9589758 | Vacuum tube | Tadami Maeda, Misa Yamanaka | 2017-03-07 |
| 9583300 | Vacuum tube | Tadami Maeda, Misa Yamanaka, Fumio Mieda | 2017-02-28 |
| 6917157 | Electrode for electron source, method for producing the same, and electronic tube using the same | Tomotaka Ezaki, Sashiro Uemura, Junko Yotani, Hiromu Yamada, Takeshi Nagasako +3 more | 2005-07-12 |
| 5844358 | Light-emitting device having a recessed portion in rear panel thereof | Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Yukiharu Seko, Hiroshi Kamogawa +6 more | 1998-12-01 |
| 5406170 | Light emitting device resistant to damage by thermal expansion | Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Yukiharu Seko, Hiroshi Kamogawa +6 more | 1995-04-11 |
| 5304083 | Method of forming a light emitting device | Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Yukiharu Seko, Hiroshi Kamogawa +6 more | 1994-04-19 |
| 4972116 | Light source display tube | Masaaki Kobayashi, Mitsuru Masuda, Hiroshi Kamogawa, Zenichiro Hara, Nobuo Terazaki +3 more | 1990-11-20 |
| 4970430 | Fluorescent display apparatus | Hiroshi Kamogawa, Zenichiro Hara, Norihiro Ichikawa, Shuji Iwata, Nobuo Terazaki | 1990-11-13 |
| 4893056 | Fluorescent display apparatus | Zenichiro Hara, Masaaki Kobayashi, Nobuo Terazaki, Shuji Iwata | 1990-01-09 |
| 4692663 | Fluorescent display tube for light source | Masaaki Kobayashi, Yosiyuki Okubo | 1987-09-08 |