| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 35 | |
| #2 | EPO (European Patent Office) | 12 | |
| #3 | France | 10 | |
| #4 | Taiwan | 3 | |
| #5 | Republic of Korea | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Telecommunications | |
| #3 | Basic communication technologies | |
| #4 | Optics | |
| #5 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Antennas | |
| #3 | AC and DC conversion devices | |
| #4 | Waveguides | |
| #5 | Amplifiers | |
| #6 | Treatment of glass | |
| #7 | Lighting device details | |
| #8 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nishida Kazuhisa | 15 |
| #2 | Chiba Akira | 6 |
| #3 | Konishi Takayoshi | 6 |
| #4 | Kobayashi Junichi | 5 |
| #5 | Fujiwara Eiji | 4 |
| #6 | Tsuchida Hiroshi | 4 |
| #7 | Uchikawa Tatsuya | 3 |
| #8 | Nobe Takeshi | 3 |
| #9 | Munehiro Takatsugu | 3 |
| #10 | Nemoto Akihiko | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2004100197A1 | Electron tube for communication | |
| US2003218413A1 | Electron gun | |
| US6777876B2 | Power-supply unit for microwave tube | |
| EP1322035A2 | Travelling wave tube | |
| US2003098655A1 | Linear-beam microwave tube | |
| US6759806B2 | High pressure discharge lamp and method for sealing a bulb thereof |