Junya Watanabe
84Patents
12h-index
88Co-inventors
87Inventor score
Filing activity: Aug 7, 1981 → Feb 29, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5314974A | Method for producing a spherical acrylonitrile crosslinked copolymer | Chemistry; Metallurgy | 43 | Expired |
| US6634170B2 | Exhaust emission control system of internal combustion engine | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6456724B1 | Electronic watermarking system capable of providing image data with high secrecy | Physics | 36 | Expired |
| US7114073B2 | Digital contents generating apparatus and digital contents reproducing apparatus | Electricity | 24 | Expired |
| US7051207B2 | Apparatus and methods for inserting and detecting electronic watermark | Electricity | 23 | Expired |
| US6853737B2 | Electronic watermark embedding device and electronic watermark detecting device, and electronic watermark embedding method and electronic watermark detecting method implemented therein | Physics | 21 | Expired |
| US5292439A | Method for preparing ultrapure water | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6428236B2 | Expansion shaft | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5248435A | Ion exchange resin, process for producing the same, and method for removing impurities from condensate | Chemistry; Metallurgy | 16 | Expired |
| US4424874A | Drive axle device | Emerging Cross-Sectional Technologies | 16 | Expired |
| US10045173B1 | Vehicle outside notification device | Performing Operations; Transporting | 14 | Active |
| US5931737A | Elastic shaft coupling | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US10647297B2 | Autonomous driving vehicle and driverless transportation system | Physics | 12 | Active |
| US6666019B2 | Exhaust emission control system of internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US10421394B2 | Driving assistance device, and storage medium | Performing Operations; Transporting | 8 | Active |
| US7699127B2 | Hydrogen fill inlet structure for fuel cell vehicle | Performing Operations; Transporting | 7 | Active |
| US10991254B2 | User vehicle dispatch dealing system and storage medium | Physics | 7 | Active |
| US5954965A | Process for producing pure water | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7021254B2 | Engine with variably adjustable compression ratio, and methods of using same | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US7401670B2 | Drainage structure in fuel cell electric vehicle | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5637627A | Method for producing a spherical ion exchange resin | Chemistry; Metallurgy | 4 | Expired |
| US7478698B2 | Arrangement of intake and exhaust system components in a fuel cell powered vehicle | Emerging Cross-Sectional Technologies | 4 | Active |
| US11104301B2 | Autonomous driving vehicle and driverless transportation system | Physics | 4 | Active |
| US11210689B2 | Vehicle dispatch device | Physics | 4 | Active |
| US5369132A | Method for producing a spherical acrylonitrile crosslinked copolymer | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.