Masahiro Oono
59Patents
14h-index
42Co-inventors
80Inventor score
Filing activity: Aug 13, 1987 → Aug 30, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5629799A | Chromatic aberration correcting element and its application | Physics | 47 | Expired |
| US5379105A | Roof surface measuring apparatus | Physics | 36 | Expired |
| US5991102A | Beam protecting device | Physics | 35 | Expired |
| US5793735A | Wavefront aberration compensation in an optical data recording and reproducing apparatus with crystal liquid matrix | Physics | 33 | Expired |
| US5838001A | Scanning optical device and polygon mirror cover | Physics | 32 | Expired |
| US5151752A | Method of measuring refractive indices of lens and sample liquid | Physics | 31 | Expired |
| US5553052A | Inclination of an objective lens in an optical information system | Physics | 31 | Expired |
| US5297114A | Magneto-optic recording/reproduction apparatus for minimizing variation in focusing error signals caused by variation in optical source wavelength | Physics | 27 | Expired |
| US5825555A | Beam projecting apparatus | Physics | 22 | Expired |
| US5223970A | Optical axis adjusting mechanism and method for optical information recording and reproducing device, and jig therefor | Physics | 21 | Expired |
| US5157459A | Wave front aberration measuring apparatus | Physics | 17 | Expired |
| US5278401A | Optical disc apparatus having five light receiving areas for detecting focus error and tracking error | Physics | 17 | Expired |
| US5844707A | Scanning optical device | Physics | 16 | Expired |
| US5978148A | Beam projecting device | Physics | 15 | Expired |
| US5341246A | Apparatus for adjusting an optical axis including plates on opposite sides of a beam shaping prism | Physics | 14 | Expired |
| US5914822A | Chromatic aberration correcting element and its application | Physics | 14 | Expired |
| US5432606A | Interferometer for the measurement of surface profile which introduces a spatial carrier by tilting the reference mirror | Physics | 13 | Expired |
| US5892219A | Light intensity controlling device | Electricity | 13 | Expired |
| US6055378A | Motor-driven auto-focusing system | Physics | 13 | Expired |
| US5477386A | Optical system for optical disc apparatus including anamorphic prisms | Physics | 13 | Expired |
| US5237457A | Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism | Physics | 12 | Expired |
| US7528882B2 | Image pickup apparatus | Physics | 12 | Active |
| US5223983A | Compound prism including interfaces with curvatures of the order of a laser wave length | Physics | 11 | Expired |
| US5343332A | Apparatus for adjusting optical axis including a beam shaping prism | Physics | 11 | Expired |
| US5317144A | Wave front aberration measuring apparatus having means for adjusting position of collimator lens | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.