Masashi Onishi
77Patents
14h-index
71Co-inventors
87Inventor score
Filing activity: Apr 14, 1988 → Dec 27, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5838867A | Dispersion compensating fiber and optical transmission system including the same | Electricity | 87 | Expired |
| US5555340A | Optical transmission system with dispersion compensating optical fiber | Physics | 66 | Expired |
| US5581647A | Method of fabricating dispersion compensation fiber | Chemistry; Metallurgy | 51 | Expired |
| US5740297A | Dispersion-compensating fiber and method of fabricating the same | Chemistry; Metallurgy | 34 | Expired |
| US5742723A | Optical transmission system with dispersion compensating optical fiber | Physics | 27 | Expired |
| US6766088B2 | Optical fiber and method for making the same | Physics | 27 | Expired |
| US6347174B1 | Non-linear optical fiber, optical fiber coil, and wavelength converter | Physics | 27 | Expired |
| US5960146A | Optical fiber and light source apparatus | Physics | 23 | Expired |
| US4975416A | Method of producing superconducting ceramic wire | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5253322A | Optical functioning glass and fiber amplifier | Electricity | 18 | Expired |
| US6116055A | Method of making synthetic silica glass | Chemistry; Metallurgy | 17 | Expired |
| US6526209B1 | Optical fiber having improved optics and structure | Physics | 16 | Expired |
| US6650821B1 | Optical device and a making method thereof | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6661958B2 | Optical fiber and nonlinear optical fiber, optical amplifier and wavelength converter using the same, and method of making optical fiber | Electricity | 16 | Expired |
| US6636677B2 | Optical fiber | Physics | 14 | Expired |
| US6483633B2 | Raman amplifier | Electricity | 13 | Expired |
| US6567596B2 | Optical fiber suitable for use in WDM transmission system | Physics | 11 | Expired |
| US6480312B1 | Dispersion compensating system used for bi-directional optical communication | Electricity | 11 | Expired |
| US6546180B1 | Coiled optical assembly and fabricating method for the same | Physics | 10 | Expired |
| US5244846A | Optical functioning glass and apparatus using the same | Electricity | 10 | Expired |
| US5215565A | Method for making superconductor filaments | Emerging Cross-Sectional Technologies | 10 | Expired |
| USRE38086E1 | Dispersion compensating fiber and optical transmission system including the same | General | 10 | Expired |
| US4968662A | Method of the production of ceramic superconductor filaments | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6076376A | Method of making an optical fiber having an imparted twist | Physics | 8 | Expired |
| US6868213B2 | Optical fiber and production method therefor | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.