Masahiro Ogawa
119Patents
18h-index
157Co-inventors
89Inventor score
Filing activity: Sep 9, 1974 → Apr 17, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5042921A | Liquid crystal display apparatus | Electricity | 160 | Expired |
| US4610857A | Method for making ultra-fine ceramic particles | Chemistry; Metallurgy | 71 | Expired |
| US5105265A | Projector apparatus having three liquid crystal panels | Electricity | 60 | Expired |
| US4770525A | Liquid crystal projector | Physics | 54 | Expired |
| US4411964A | Composite coating steel sheets having good corrosion resistance paintability and corrosion resistance after paint coating | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4407899A | Surface treated steel sheets for paint coating | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5097323A | Liquid crystal projector | Electricity | 36 | Expired |
| US4787737A | Projection display apparatus | Electricity | 33 | Expired |
| US6566231B2 | Method of manufacturing high performance semiconductor device with reduced lattice defects in the active region | Electricity | 31 | Expired |
| US4925295A | Projection display apparatus | Electricity | 31 | Expired |
| US9541820B2 | Light source unit including an area of luminescent material emitting luminescent light in green wavelength range on part of member situated on optical path of light in blue wavelength range and projector | Physics | 24 | Active |
| US5742358A | Projection type displaying apparatus having screen | Electricity | 24 | Expired |
| US4772098A | Liquid crystal projector with cooling system | Electricity | 24 | Expired |
| US6017031A | Document feeder | Performing Operations; Transporting | 22 | Expired |
| US5577414A | Articulated robot | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4273983A | Method of resistance welding | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6750158B2 | Method for producing a semiconductor device | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5099388A | Alumina multilayer wiring substrate provided with high dielectric material layer | Electricity | 19 | Expired |
| US5321448A | Liquid crystal projector | Electricity | 18 | Expired |
| US4786340A | Solution heat-treated high strength aluminum alloy | Chemistry; Metallurgy | 17 | Expired |
| US6419482B1 | Opening and closing apparatus of an opening and closing lid of a box accommodating an object to be processed and a processing system of an object to be processed | Electricity | 17 | Expired |
| US4632849A | Method for making a fine powder of a metal compound having ceramic coatings thereon | Chemistry; Metallurgy | 14 | Expired |
| US3935056A | Apparatus for splicing parallelogrammatic pieces of rubber cloth without overlap | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5927429A | Electric power steering apparatus | Performing Operations; Transporting | 13 | Expired |
| US6589857B2 | Manufacturing method of semiconductor film | Electricity | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.