Jun Yamada
261Patents
25h-index
293Co-inventors
93Inventor score
Filing activity: Feb 19, 1974 → Mar 1, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5504803A | Method for automatic mode selection for a dual-mode telephone handset for use in a cellular mobile telephone system and in a wireless telephone system | Electricity | 175 | Expired |
| US6809788B2 | Liquid crystal display element with different ratios of polydomain and monodomain states | Physics | 81 | Expired |
| US5679070A | Coin payout device | Physics | 78 | Expired |
| US5317909A | Abnormality detecting apparatus for use in fuel transpiration prevention systems | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US5483666A | Method for allocating channels in a microcellular system | Electricity | 70 | Expired |
| US5625869A | System for preventing unauthorized use of a micro cellular system operating in coexistence with a cellular system | Electricity | 63 | Expired |
| US4832457A | Multipanel liquid crystal display device | Physics | 50 | Expired |
| US6011960A | Telephone handset for operating in a plurality of wireless telephone system | Electricity | 50 | Expired |
| US5840633A | Nonwoven fabric and method of making the same | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5789328A | Bulky nonwoven fabric and method for producing the same | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6063717A | Hydroentangled nonwoven fabric and method of producing the same | Emerging Cross-Sectional Technologies | 41 | Expired |
| USD643855S1 | Air cylinder | General | 41 | Expired |
| US5625672A | Apparatus and method for providing a microzone mobile communication system within a cellular telephone system | Electricity | 39 | Expired |
| US5710973A | Method for allocating idle channels of a cellular mobile telephone system for use in a microcellular system | Electricity | 39 | Expired |
| US5692593A | Method of and apparatus for automatically conveying workpieces | Performing Operations; Transporting | 38 | Expired |
| US5305714A | Fuel supply system for an internal combustion engine | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4942327A | Solid state electronic device | Electricity | 32 | Expired |
| US6193045A | Coin pullout prevention lever of coin sorting device | Physics | 31 | Expired |
| US6328122A | Hybrid vehicle comprising emergency drive device | Emerging Cross-Sectional Technologies | 31 | Expired |
| USD500258S1 | Fluid pressure cylinder | General | 29 | Expired |
| US5998960A | Power supply system for electric vehicle | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4775814A | Saw device | Electricity | 27 | Expired |
| USD500259S1 | Fluid pressure cylinder | General | 27 | Expired |
| US6968268B2 | Misfire detector for an internal combustion engine | Physics | 26 | Expired |
| USD643856S1 | Air cylinder | General | 26 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.