Yasuhiro KOIKE
21Patents
2Active
21Granted
31Portfolio score
Filing activity: Dec 15, 1995 → May 9, 2011
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5997148A | Surface light source device of side light type | Emerging Cross-Sectional Technologies | 107 | Expired |
| US6241358A | Tandem lighting panel | Physics | 74 | Expired |
| US6280043A | Surface light source device of side light type | Physics | 64 | Expired |
| US6568819B1 | Guide plate, surface light source device of side light type and liquid crystal display | Physics | 38 | Expired |
| US6155692A | Surface light source device of side light type | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6406158B1 | Surface light source device of side light type | Physics | 36 | Expired |
| US6049649A | Surface light source device of side-light type | Physics | 32 | Expired |
| US5788356A | Surface light source device of side light type | Physics | 31 | Expired |
| US5783636A | Graded-refractive-index optical plastic material and method for its production | Physics | 26 | Expired |
| US6074070A | Surface light source device of side light type | Physics | 20 | Expired |
| US5916971A | Graded-refractive-index optical plastic material and method for its production | Physics | 20 | Expired |
| US5961197A | Surface light source device | Physics | 20 | Expired |
| US6271312A | Graded-refractive-index optical plastic material of a fluoropolymer containing a material in a concentration gradient therein | Physics | 13 | Expired |
| US6309080A | Surface light source device and liquid crystal display | Physics | 13 | Expired |
| US6396634B1 | Surface light source device of side light type | Physics | 11 | Expired |
| US6027221A | Surface light source device of side light type and mold for light guide plate employed in the device | Physics | 10 | Expired |
| US6478438B1 | Side light type surface light source device | Physics | 8 | Expired |
| US6024463A | Surface light source device of side light type with belt-like diffusible area | Physics | 7 | Expired |
| US6568820B1 | Guide plate, surface light source device of side light type and liquid crystal display | Physics | 5 | Expired |
| US8967880B2 | Optical collimator and optical connector using same | Physics | 1 | Active |
| US9128238B2 | Optical material and molded product thereof | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.