Toru Fujii
94Patents
14h-index
97Co-inventors
87Inventor score
Filing activity: Feb 13, 1975 → Oct 20, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5537863A | Scanning probe microscope having a cantilever used therein | Electricity | 53 | Expired |
| US5509676A | Shock absorber for a bicycle front fork | Performing Operations; Transporting | 47 | Expired |
| US5765046A | Piezoelectric vibration angular velocity meter and camera using the same | Physics | 43 | Expired |
| US4825116A | Transmitter-receiver of ultrasonic distance measuring device | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5689063A | Atomic force microscope using cantilever attached to optical microscope | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5080946A | Optical information recording medium and recording method | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5427579A | Control system for belt-type continuously variable transmission | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6480450B1 | Method and apparatus for recording optical information by varying recording pulse width | Physics | 36 | Expired |
| US5508517A | Scanning probe type microscope apparatus | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5794080A | Piezoelectric vibration angular velocity meter and camera using the same | Physics | 29 | Expired |
| US5723775A | Atomic force microscope under high speed feedback control | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6724464B2 | Position detecting method and unit, optical characteristic measuring method and unit, exposure apparatus, and device manufacturing method | Physics | 20 | Expired |
| US4367927A | Zoom lens system | Physics | 15 | Expired |
| US5976658A | Optical information recording medium | Emerging Cross-Sectional Technologies | 14 | Expired |
| US3997248A | Large aperture telephoto lens system | Physics | 13 | Expired |
| US5520232A | Puncture proof tire | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6593792B2 | Buffer circuit block and design method of semiconductor integrated circuit by using the same | Electricity | 12 | Expired |
| US5318882A | Optical recording medium containing a light stabilizer comprised of aryl nitrogen compound | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6091277A | Input buffer circuit for semiconductor IC circuit | Physics | 11 | Expired |
| US6782986B2 | Sheet counting apparatus, sheet counting method and transaction apparatus | Physics | 11 | Expired |
| US4188091A | Cata-dioptric objective lens system | Physics | 11 | Expired |
| US6218072A | Optical information recording medium | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4106854A | Photographic lens system having a large aperture ratio | Physics | 10 | Expired |
| US6714051B2 | Logic circuitry-implemented bus buffer | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7194751B2 | Optical information medium | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.