Masataka Watanabe
48Patents
6h-index
70Co-inventors
72Inventor score
Filing activity: Nov 7, 1986 → Aug 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5097897A | Heat exchanging device | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6386001B1 | Optical fiber manufacture method including elongating a preform in a vertical direction and a horizontal direction | Chemistry; Metallurgy | 17 | Expired |
| US7648867B2 | Method for fabricating a semiconductor device | Electricity | 8 | Active |
| US6546759B1 | Glass base material manufacturing apparatus with super imposed back-and-forth burner movement | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6048397A | GaAsP epitaxial wafer and a method for manufacturing it | Electricity | 7 | Expired |
| US5912476A | Compound semiconductor epitaxial wafer | Electricity | 7 | Expired |
| US6396321B1 | Semiconductor integrated circuit equipped with function for controlling the quantity of processing per unit time length by detecting internally arising delay | Physics | 6 | Expired |
| US6256708A | Auxiliary buffer for direct map cache | Physics | 6 | Expired |
| US6457106B1 | Shared memory control system and shared memory control method | Physics | 6 | Expired |
| US4876438A | Control of the power to the heater and the speed of movement of a crystal rod by control of the crystal rod diameter | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9523871B2 | Semiconductor optical modulator and method for manufacturing semiconductor optical modulator | Physics | 5 | Active |
| US6057592A | Compound semiconductor epitaxial wafer | Electricity | 5 | Expired |
| US6641958B2 | Phase shift mask blank, phase shift mask, and methods of manufacture | Physics | 4 | Expired |
| US6184049A | Method for fabricating compound semiconductor epitaxial wafer and vapor phase growth apparatus using the same | Chemistry; Metallurgy | 4 | Expired |
| US6790129B2 | Method for polishing angular substrates | Performing Operations; Transporting | 4 | Expired |
| US4931945A | Method of controlling floating zone | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5759264A | Method for vapor-phase growth | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6171394A | Method for manufacturing compound semiconductor epitaxial wafer | Electricity | 3 | Expired |
| US4770194A | Method of manufacturing wrinkled sheet tobacco | Human Necessities | 3 | Expired |
| US4866230A | Method of and apparatus for controlling floating zone of semiconductor rod | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6526094B1 | PWM Circuit | Electricity | 3 | Expired |
| US6616928B1 | Active oxygen scavenger and cancer chemopreventer from Grifola | Human Necessities | 2 | Expired |
| US9885936B2 | Mach-Zehnder modulator, method for fabricating Mach-Zehnder modulator | Physics | 2 | Active |
| US7122280B2 | Angular substrates | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7055345B2 | Glass base material manufacturing apparatus and glass base material manufacturing method | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.