Hidehiro Ikeda
51Patents
9h-index
35Co-inventors
74Inventor score
Filing activity: Jul 6, 1999 → Jan 29, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6280038A | Optical equipment | Electricity | 38 | Expired |
| US6573950B1 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Electricity | 25 | Expired |
| US8662678B2 | Solid-state light source device | Physics | 24 | Active |
| US6768594B2 | Projection lens apparatus and rear projection type image display apparatus using the same | Physics | 23 | Expired |
| US6560041B2 | Projection lens apparatus and projection type image display apparatus | Physics | 16 | Expired |
| US6956624B2 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Electricity | 15 | Expired |
| US6894729B2 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Electricity | 14 | Expired |
| US7081927B2 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Electricity | 13 | Expired |
| US6431710B1 | Optical apparatus | Electricity | 11 | Expired |
| US9256060B2 | Pinhole array and display device using same | Physics | 9 | Active |
| US6975460B2 | Projection lens apparatus and projection type image display apparatus | Physics | 6 | Expired |
| US7159988B2 | Projection optical unit and projection image display apparatus | Physics | 6 | Expired |
| US7264905B2 | Photomask, and method and apparatus for producing the same | Physics | 5 | Expired |
| US8287136B2 | Display apparatus | Electricity | 5 | Active |
| US7342724B2 | Rear projection type image display device | Physics | 5 | Active |
| US7021768B2 | Optical apparatus | Electricity | 5 | Expired |
| US8441582B2 | Imaging displaying apparatus and 3-D image displaying apparatus applying the same therein | Physics | 4 | Active |
| US7901097B2 | Display apparatus and projection type lighting apparatus therefor | Physics | 3 | Active |
| US6857749B2 | Projection type display apparatus | Electricity | 3 | Expired |
| US8210687B2 | Image displaying apparatus, and a method for adjusting vibrating condition of a reflection mirror in the image displaying apparatus | Physics | 3 | Active |
| US7261420B2 | Projection optical unit and projection image display apparatus | Physics | 3 | Active |
| US8066385B2 | Projection display and lighting unit with diffusion optical device | Physics | 3 | Active |
| US7175284B2 | Projection type display apparatus | Electricity | 3 | Expired |
| US7142367B2 | Projection lens apparatus and projection type image display apparatus | Physics | 2 | Expired |
| US8462296B2 | Projection-type display apparatus | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.