Yasuhiro Yoshikawa
34Patents
5h-index
39Co-inventors
69Inventor score
Filing activity: Aug 28, 1987 → May 25, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5266834A | Semiconductor device and an electronic device with the semiconductor devices mounted thereon | Electricity | 225 | Expired |
| US6646807B2 | Lens array unit and process for making lens array | Physics | 20 | Expired |
| US6579125B1 | Clip connector, method of attaching clip connector, and assembly of clip connector and support member | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7750464B2 | Semiconductor device | Electricity | 6 | Active |
| US6307580A | Thermal printhead and method of making the same | Performing Operations; Transporting | 6 | Expired |
| US6392685B1 | Drive IC chip and printhead | Electricity | 5 | Expired |
| US6404453B1 | Thermal printhead and clip pin used for the same | Electricity | 4 | Expired |
| US7977757B2 | MEMS element, MEMS device and MEMS element manufacturing method | Performing Operations; Transporting | 4 | Active |
| US6236422A | Thermal printhead and protective cover used for the same | Performing Operations; Transporting | 4 | Expired |
| US7800214B2 | Semiconductor device | Electricity | 4 | Active |
| US8304958B2 | Power generation apparatus including an electret and an opposing electrode on the surface of a movable member facing a dielectric | Electricity | 4 | Active |
| US6317150A | Protection cover for thermal printhead, and thermal printhead using the same | Performing Operations; Transporting | 3 | Expired |
| US7551329B2 | Led chip mounting structure and image reader having same | Electricity | 3 | Expired |
| US9390766B2 | Semiconductor device and electronic device | Electricity | 3 | Active |
| US7164592B2 | Semiconductor device | Electricity | 3 | Expired |
| US4880905A | Process for producing organophosphazene polymers with chlorophosphazene | Chemistry; Metallurgy | 2 | Expired |
| US9413272B2 | Power generation device having a dielectric body and an electret | Electricity | 2 | Active |
| US5075453A | Process for producing aryloxy-substituted phosphazene derivatives | Chemistry; Metallurgy | 2 | Expired |
| US8241926B2 | Semiconductor integrated circuit test method | Physics | 2 | Active |
| US6429887B2 | Thermal printhead and method of making the same | Performing Operations; Transporting | 1 | Expired |
| US7888795B2 | Semiconductor device | Electricity | 1 | Active |
| US8742644B2 | Power generation apparatus | Electricity | 1 | Active |
| US9158717B2 | Electronic device and semiconductor device | Electricity | 1 | Active |
| US8047076B2 | Acceleration sensor and method of fabricating it | Emerging Cross-Sectional Technologies | 1 | Active |
| US8183688B2 | Semiconductor device | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.