Masahiro Mitsuda
18Patents
12h-index
12Co-inventors
75Inventor score
Filing activity: Aug 16, 1995 → Jul 31, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6406196B1 | Optical device and method for producing the same | Electricity | 77 | Expired |
| US5563733A | Optical fiber amplifier and optical fiber transmission system | Electricity | 43 | Expired |
| US5623362A | Erbium-doped fiber amplifier and an optical fiber communication system | Electricity | 32 | Expired |
| US5936763A | Optical fiber amplifier, semiconductor laser module for pumping and optical signal communication system | Electricity | 30 | Expired |
| US6327407A | Semiconductor light-receiving device, method of manufacturing the same, bidirectional optical semiconductor device, and optical transmission system | Physics | 28 | Expired |
| US6264377A | Bidirectional optical semiconductor apparatus | Physics | 21 | Expired |
| US5598294A | Optical fiber amplifier and optical fiber communication system | Electricity | 19 | Expired |
| US6517257B2 | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Physics | 18 | Expired |
| US5598491A | Optical fiber amplifier and optical fiber transmission apparatus | Electricity | 17 | Expired |
| US6547451B1 | Optical communications module and method for mounting optical communications module | Physics | 16 | Expired |
| US6350064B2 | Bidirectional optical semiconductor apparatus | Physics | 16 | Expired |
| US6332719A | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Physics | 12 | Expired |
| US5978535A | Semiconductor laser module, optical fiber amplifier and optical transfer system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6714696B2 | Light-wave circuit module and method for manufacturing the same | Physics | 4 | Expired |
| US5914808A | Intermediate isolator type fiber amplifier and fiber transmission system | Electricity | 3 | Expired |
| US6836608B2 | Planar optical waveguide, method for manufacturing the same and polymer optical waveguide | Physics | 2 | Expired |
| US6515307B2 | Bidirectional optical semiconductor apparatus | Physics | 0 | Expired |
| US12199057B2 | Semiconductor device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.