Keiichi Betsui
72Patents
16h-index
58Co-inventors
87Inventor score
Filing activity: Aug 28, 1984 → Mar 13, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6762743B2 | Display device employing a field-sequential method | Electricity | 87 | Expired |
| US5825128A | Plasma display panel with undulating separator walls | Electricity | 57 | Expired |
| US6008576A | Flat display and process for producing cathode plate for use in flat display | Electricity | 30 | Expired |
| US6242859A | Plasma display panel and method of manufacturing same | Electricity | 28 | Expired |
| US5572041A | Field emission cathode device made of semiconductor substrate | Electricity | 26 | Expired |
| US6296539A | Method of making plasma display panel with dielectric layer suppressing reduced electrode conductivity | Physics | 26 | Expired |
| US5528048A | Charged particle beam exposure system and method | Electricity | 26 | Expired |
| US7176879B1 | Display device and display method | Physics | 24 | Expired |
| US6242860A | Plasma display panel and method of manufacturing same | Electricity | 24 | Expired |
| US5967872A | Method for fabrication of a plasma display panel | Electricity | 24 | Expired |
| US5614725A | Charged particle beam exposure system and method | Electricity | 23 | Expired |
| US6236159A | Gas discharge panel having gas flow barriers and evacuation method thereof | Electricity | 22 | Expired |
| US6646275B2 | Charged particle beam exposure system and method | Electricity | 22 | Expired |
| US5214289A | Charged particle beam deflector | Electricity | 21 | Expired |
| US5587720A | Field emitter array and cleaning method of the same | Electricity | 19 | Expired |
| US5977548A | Charged particle beam exposure system and method | Electricity | 17 | Expired |
| US6118129A | Method and system for exposing an exposure pattern on an object by a charged particle beam which is shaped into a plurality of beam elements | Electricity | 16 | Expired |
| US5844531A | Fluorescent display device and driving method thereof | Electricity | 14 | Expired |
| US5938494A | Method for producing a plasma display panel | Electricity | 13 | Expired |
| US5389026A | Method of producing metallic microscale cold cathodes | Electricity | 13 | Expired |
| US6048243A | Method of forming barrier ribs of display panel | Electricity | 13 | Expired |
| US6486479B1 | Charged particle beam exposure system and method | Electricity | 12 | Expired |
| US5576594A | Cathode device having smaller opening | Electricity | 11 | Expired |
| US6344713B1 | Plasma display panel with dielectric layer suppressing reduced electrode conductivity | Physics | 11 | Expired |
| US5378658A | Patterning process including simultaneous deposition and ion milling | Electricity | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.