Yuji Harada
55Patents
7h-index
62Co-inventors
75Inventor score
Filing activity: Sep 17, 1973 → Nov 18, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4631820A | Mounting assembly and mounting method for an electronic component | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4180711A | Desk-top calculator keyboard switch | Electricity | 37 | Expired |
| US3950627A | Push button switch | Electricity | 31 | Expired |
| US4042090A | Key top | Electricity | 17 | Expired |
| US4608465A | Keyboard | Electricity | 9 | Expired |
| US4508428A | Ink projections on the polarizer of an electro-optic display | Physics | 9 | Expired |
| US4553820A | Keyboard switch with a mesh of fibers | Electricity | 9 | Expired |
| USD287507S | Desk-top electronic calculator | General | 4 | Expired |
| US10067161B2 | Socket | Physics | 3 | Active |
| USD282854S | Desk-top electronic calculator | General | 3 | Expired |
| US11598245B2 | Engine system | Emerging Cross-Sectional Technologies | 2 | Active |
| US5244034A | Electromagnetic levitation type continuous metal casting | Performing Operations; Transporting | 2 | Expired |
| US11215109B2 | Internal combustion engine with pre-chamber | Emerging Cross-Sectional Technologies | 2 | Active |
| US5341867A | Electromagnetic levitation type continuous metal casting apparatus | Performing Operations; Transporting | 2 | Expired |
| US11686243B2 | Engine system | Emerging Cross-Sectional Technologies | 1 | Active |
| US7851871B2 | Semiconductor device and method for fabricating the same | Electricity | 1 | Active |
| US9599058B2 | Control device of gasoline direct-injection engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US11111871B2 | Control apparatus for compression-ignition type engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US9889500B2 | Die casting machine and control method of die casting machine | Performing Operations; Transporting | 1 | Active |
| US11767816B2 | Engine system | Emerging Cross-Sectional Technologies | 0 | Active |
| US11187179B2 | Control apparatus for compression-ignition type engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11891973B2 | Engine system | Emerging Cross-Sectional Technologies | 0 | Active |
| US11220972B2 | Control apparatus for compression-ignition type engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11313269B2 | Control apparatus for compression-ignition type engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11199152B2 | Control apparatus for compression-ignition type engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.