Shigeru Nakamura
208Patents
25h-index
256Co-inventors
93Inventor score
Filing activity: Oct 29, 1975 → Nov 10, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467417A | Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same | Emerging Cross-Sectional Technologies | 158 | Expired |
| US6291763A | Photoelectric conversion device and photo cell | Emerging Cross-Sectional Technologies | 137 | Expired |
| US5281797A | Short wavelength optical disk head having a changeable aperture | Physics | 76 | Expired |
| US6958099B2 | High toughness steel material and method of producing steel pipes using same | Chemistry; Metallurgy | 71 | Expired |
| US5361244A | Optical head and information recording apparatus | Electricity | 71 | Expired |
| US6495598B1 | Perfusate preparation for ophthalmic operation | Human Necessities | 59 | Expired |
| US4663751A | Optical information processor for compensating offset | Physics | 46 | Expired |
| US5627926A | Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4901325A | Semiconductor laser device | Electricity | 45 | Expired |
| US6853013B2 | Light-emitting element and method of producing the same | Electricity | 45 | Expired |
| US4450547A | Focal position detecting optical apparatus | Physics | 41 | Expired |
| US4970707A | Optical tape apparatus with a tracking control mechanism and/or a focusing control mechanism | Physics | 40 | Expired |
| US5377212A | Solid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic wave | Electricity | 38 | Expired |
| US4725721A | Autofocusing control system | Physics | 36 | Expired |
| US4770507A | Prism optics and optical information processing apparatus | Physics | 35 | Expired |
| US4742218A | Focus error detection apparatus utilizing focusing an front and rear sides of focal planes | Physics | 33 | Expired |
| US4727798A | Popcorn processing machine | Human Necessities | 33 | Expired |
| US5334493A | Photographic processing solution having a stabilizing ability and a method for processing a silver halide color photographic light-sensitive material | Physics | 32 | Expired |
| US5245491A | Magneto-optical head employing optical fiber connected stationary and movable portions | Physics | 32 | Expired |
| US5095472A | Focusing error detecting system for optical head | Physics | 29 | Expired |
| US5329601A | Semiconductor optical waveguide type switch including light control means | Physics | 29 | Expired |
| US5698310A | Method for film formation and product thereof | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4960828A | Scratch resistant top coating composition | Chemistry; Metallurgy | 28 | Expired |
| US6679118B1 | Accelerometer and spherical sensor type measuring instrument | Physics | 28 | Expired |
| US5418763A | Disc recording system | Physics | 27 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.