Masao Imai
116Patents
23h-index
96Co-inventors
93Inventor score
Filing activity: Feb 11, 1982 → Jun 22, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5283600A | LCD projector | Physics | 97 | Expired |
| US4751509A | Light valve for use in a color display unit with a diffraction grating assembly included in the valve | Physics | 88 | Expired |
| US4542201A | Resin for high-refractivity lenses and lenses made of same resin | Chemistry; Metallurgy | 88 | Expired |
| US8571217B2 | Display system, control apparatus, display method, and program | Electricity | 84 | Active |
| US8587680B2 | Communication system, transmission device and reception device | Physics | 72 | Active |
| US4775733A | High-refractivity plastic lens resin formed by reacting at least one polyisocyanate with at least one polythiol | Chemistry; Metallurgy | 70 | Expired |
| US5753730A | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby | Physics | 69 | Expired |
| US4707430A | Optical recording medium | Emerging Cross-Sectional Technologies | 69 | Expired |
| US5374668A | Casting epoxy resin, polythiol and releasing agent to form lens | Physics | 64 | Expired |
| US4707425A | Optical recording method and media therefor | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4750910A | Indigo blue-colored bioabsorbable surgical fibers and production process thereof | Emerging Cross-Sectional Technologies | 62 | Expired |
| US5191055A | Mercapto compound, a high refractive index resin and lens and a process for preparing them | Physics | 49 | Expired |
| US5930037A | Stereoscopic display apparatus which prevents inverse stereoscopic vision | Electricity | 48 | Expired |
| US5087758A | Mercapto compound, a high refractive index resin and lens and a process for preparing them | Physics | 45 | Expired |
| US5825541A | Stereoscopic display system | Electricity | 36 | Expired |
| US8690335B2 | Display apparatus which displays the first image and the synthesized image with circular polarizations having different senses of rotation from each other | Electricity | 35 | Active |
| US5908876A | Optical resin composition comprising a thiourethane prepolymer and use thereof | Physics | 31 | Expired |
| US4791185A | High-refractivity plastic lens resin formed from a polyisocyanate and a polythiol | Physics | 31 | Expired |
| US6024425A | Storage apparatus | Performing Operations; Transporting | 30 | Expired |
| US7042527B2 | Field sequential display of color video picture with color breakup prevention | Electricity | 28 | Expired |
| US5680064A | Level converter for CMOS 3V to from 5V | Electricity | 27 | Expired |
| US5594088A | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur containing urethane resin lens and lens prepared thereby | Physics | 26 | Expired |
| US7690810B2 | Illumination device and display device | Physics | 26 | Active |
| US8619204B2 | Liquid crystal shutter and liquid crystal shutter eyeglass | Physics | 22 | Active |
| US5059673A | Resin for urethane lenses, lenses comprising the resin, and a process for preparation of the resin and the lenses | Physics | 21 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.