Eiichi Toide
30Patents
15h-index
20Co-inventors
77Inventor score
Filing activity: Nov 7, 1986 → Jul 31, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5142387A | Projection-type display device having light source means including a first and second concave mirrors | Electricity | 86 | Expired |
| US5765934A | Projection type display | Electricity | 66 | Expired |
| US5642229A | Projection lens unit | Physics | 53 | Expired |
| US5135300A | Projection color display apparatus | Electricity | 42 | Expired |
| US5216649A | Optical head with a tilt correction servo mechanism | Physics | 31 | Expired |
| US4817072A | Optical head utilizing diffraction grating | Physics | 29 | Expired |
| US5123729A | Projection display device | Electricity | 25 | Expired |
| US5404246A | Projection lens system | Physics | 23 | Expired |
| US5745297A | Retrofocus lens system | Physics | 23 | Expired |
| US5066138A | Optical head apparatus | Physics | 19 | Expired |
| US5572364A | Projection lens system | Physics | 17 | Expired |
| US5537167A | Projection type display apparatus | Electricity | 17 | Expired |
| US5130850A | Projection lens system | Physics | 17 | Expired |
| US4789978A | System and method of astigmatism correction in an optical head apparatus | Physics | 15 | Expired |
| US5321789A | Projection display apparatus, and light guide tube/light valve for use in the same | Physics | 15 | Expired |
| US4983002A | Optical head device | Physics | 13 | Expired |
| US5148320A | Projection lens | Physics | 11 | Expired |
| US4811329A | Optical head with laser having particular source of driving current | Physics | 11 | Expired |
| US5570140A | Projection unit for projection type display apparatus | Electricity | 10 | Expired |
| US5210627A | Optical record and reproduction apparatus with liquid crystal panel that rotates light followed by a polarizer or birefringent plate | Physics | 8 | Expired |
| US5607216A | Projection display apparatus | Electricity | 7 | Expired |
| US5138222A | Projection cathode ray tube having an interference filter | Electricity | 7 | Expired |
| US5337093A | Projection television system including a plurality of display elements with corresponding optical axes incident to a screen at different points offset from the screen center | Electricity | 7 | Expired |
| US5739875A | Projection unit for projection type display apparatus | Electricity | 7 | Expired |
| US4797545A | Optical head device having positionally adjustable parts | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.