Keiichiro Doi
13Patents
7h-index
16Co-inventors
63Inventor score
Filing activity: Dec 27, 1978 → Feb 28, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4968864A | Magnetic card control microwave oven | Electricity | 39 | Expired |
| US4351996A | Induction heating apparatus with thermistor and magnetic sensor | Electricity | 36 | Expired |
| USD267094S | Magnetic card for microwave oven | General | 33 | Expired |
| US4467162A | Exciting arrangement for induction heating process | Electricity | 25 | Expired |
| US4309585A | Error alarm system in a microwave oven | Electricity | 19 | Expired |
| USD267009S | Magnetic card for microwave oven | General | 19 | Expired |
| US4339646A | Cooking operation announcement means of microwave oven | Electricity | 17 | Expired |
| US9617783B2 | Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraft | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US5084744A | Field effect transistor with active layer apart from guard-ring | Electricity | 5 | Expired |
| US4646282A | Stylus for capacity change detection type disc system | Physics | 5 | Expired |
| US9777838B2 | Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraft | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US4430542A | Electromagnetic cooking apparatus | Electricity | 2 | Expired |
| US4410974A | Capacitance detection type record stylus and method for making the stylus | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.