Youichi Watanabe
21Patents
12h-index
33Co-inventors
81Inventor score
Filing activity: Aug 14, 1978 → Jul 6, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6587602B2 | Resolution conversion system and method | Electricity | 40 | Expired |
| US6089536A | Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5109236A | Smoothness measuring device and recording apparatus to which the smoothness measuring device is applied | Physics | 37 | Expired |
| US6193211A | Motor-operated flow control valve and gas recirculation control valve for internal combustion engine | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6002810A | Resolution conversion system and method | Electricity | 33 | Expired |
| US6365994B1 | Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6378839B2 | Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4742151A | Ultra-high-molecular-weight polyesters | Chemistry; Metallurgy | 22 | Expired |
| US4186593A | Drive simulator operating method | Physics | 15 | Expired |
| US4758117A | Method for the transportation of a particulate material at controlled rate | Performing Operations; Transporting | 14 | Expired |
| US5633671A | Recording method and apparatus maintaining constant density by anticipating temperature changes in the recording head | Performing Operations; Transporting | 13 | Expired |
| US6389180B1 | Resolution conversion system and method | Electricity | 12 | Expired |
| US5533819A | Character by character thermal recording device with ink sheet feed control | Performing Operations; Transporting | 11 | Expired |
| US6151425A | Resolution conversion system and method | Electricity | 10 | Expired |
| US7083688B2 | High-strength race and method of producing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4689528A | Printer | Physics | 3 | Expired |
| US6733600B2 | Nitrided maraging steel and method of manufacture thereof | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4917848A | Process for producing polyester fibers | Textiles; Paper | 2 | Expired |
| US5214120A | Dope for forming elastic polyurethane articles and process for producing said articles | Chemistry; Metallurgy | 1 | Expired |
| US9943081B2 | Antibacterial/antiviral coating material, and method for forming antibacterial/antiviral coating film | Chemistry; Metallurgy | 1 | Active |
| US11155891B2 | Surface hardening treatment device and surface hardening treatment method | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.