Yasuhiro Aoki
68Patents
8h-index
94Co-inventors
81Inventor score
Filing activity: Mar 1, 1978 → Aug 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5218608A | Optical fiber amplifier | Electricity | 41 | Expired |
| US5912754A | Method for transmitting WDM optical signal to be amplified by optical amplification repeaters and systems used in same | Electricity | 32 | Expired |
| US4886334A | Optical amplifying repeater | Electricity | 29 | Expired |
| US6966956B2 | Ni-based single crystal super alloy | Chemistry; Metallurgy | 15 | Expired |
| US6064514A | Optical surge preventing method and system for use with or in a rare earth doped fiber circuit | Electricity | 15 | Expired |
| US5995254A | Wavelength division multiplexing light transmitting system | Electricity | 14 | Expired |
| US5568014A | Traveling-wave tube amplifier having collector potential lower than body potential | Electricity | 13 | Expired |
| US9458871B2 | Structure for shaft, male member, and female member | Emerging Cross-Sectional Technologies | 11 | Active |
| US6991150B2 | Method of build up welding to thin-walled portion | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6603587B1 | Optical amplifier repeater | Electricity | 6 | Expired |
| US4198977A | Dental therapeutic device | Human Necessities | 6 | Expired |
| US4795286A | Pen tip structure | Performing Operations; Transporting | 6 | Expired |
| US9130679B1 | Polarization-switched differential ternary phase-shift keying | Electricity | 6 | Active |
| US9630679B2 | Spring leg of front fork | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US8965061B2 | Person retrieval apparatus | Physics | 4 | Active |
| US9488255B2 | Ball screw, seal material, and seal structure | Emerging Cross-Sectional Technologies | 4 | Active |
| US8771440B2 | Ni-based single crystal superalloy | Chemistry; Metallurgy | 4 | Active |
| US8385608B2 | Dictionary data registration apparatus and dictionary data registration method | Physics | 4 | Active |
| US9196160B2 | Vehicle detection apparatus and vehicle detection method | Physics | 4 | Active |
| US7473326B2 | Ni-base directionally solidified superalloy and Ni-base single crystal superalloy | Chemistry; Metallurgy | 3 | Expired |
| US9247214B2 | Image processing apparatus and image processing method with projective transform of multiple cameras | Physics | 3 | Active |
| US10634207B2 | Damping force control type shock absorber | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US11760147B2 | Shock absorber | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8877122B2 | Ni-based single crystal superalloy and turbine blade incorporating the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US8478001B2 | Image processing apparatus | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.