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Patent applications and USPTO patent grants for Ezaki; Tomotaka.The latest application filed is for "analog amplification vacuum tube".
Patent | Date |
---|---|
Analog amplification vacuum tube Grant 11,062,871 - Tatsuda , et al. July 13, 2 | 2021-07-13 |
Analog Amplification Vacuum Tube App 20200328057 - TATSUDA; Kazunori ;   et al. | 2020-10-15 |
Electrode for electron source, method for producing the same, and electronic tube using the same Grant 6,917,157 - Ezaki , et al. July 12, 2 | 2005-07-12 |
Vacuum fluorescent display having x-ray shielding cap Grant 6,914,380 - Uemura , et al. July 5, 2 | 2005-07-05 |
Electrode for electron source, method for producing the same, and electronic tube using the same App 20030001478 - Ezaki, Tomotaka ;   et al. | 2003-01-02 |
Vacuum fluorescent display App 20020024290 - Uemura, Sashiro ;   et al. | 2002-02-28 |
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