Junji Hashimura
32Patents
8h-index
36Co-inventors
75Inventor score
Filing activity: Oct 10, 1990 → Mar 22, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5327290A | Compact size zoom lens system | Physics | 40 | Expired |
| US5168403A | Zoom lens system | Physics | 20 | Expired |
| US5633763A | Lens drive mechanism using an electro-mechanical transducer | Physics | 16 | Expired |
| US5153777A | Compact-size zoom lens system | Physics | 14 | Expired |
| US5986818A | Gradient index aspherical lens | Physics | 12 | Expired |
| US5398136A | Photographic lens system | Physics | 11 | Expired |
| US5424870A | Compact zoom lens system | Physics | 11 | Expired |
| US5923478A | Zoom lens system | Physics | 8 | Expired |
| US5786941A | Zoom lens system | Physics | 6 | Expired |
| US6327440A | Camera | Physics | 5 | Expired |
| US5978149A | Zoom lens system | Physics | 3 | Expired |
| US5973849A | Zoom lens system | Physics | 3 | Expired |
| US5978154A | Zoom lens system | Physics | 3 | Expired |
| US7668066B2 | Optical pickup apparatus | Physics | 3 | Active |
| US6384985B1 | Zoom lens system | Physics | 3 | Expired |
| US6781767B2 | Zoom optical system with a prescribed conjugate distance | Physics | 2 | Expired |
| US5754899A | Camera capable of taking pictures in both standard frame and panoramic frame | Physics | 2 | Expired |
| US7463570B2 | Multi-focus objective lens, optical pickup apparatus and optical information recording reproducing apparatus | Physics | 2 | Active |
| US6166862A | Designing method of zoom optical system | Physics | 2 | Expired |
| US6922289B2 | Objective lens system for optical pickups | Physics | 1 | Expired |
| US7379411B2 | Beam shaping device | Physics | 1 | Expired |
| US6624951B2 | Objective lens system for optical pickups | Physics | 1 | Expired |
| US7924683B2 | Optical pickup apparatus with objective optical system and guiding optical system | Physics | 0 | Active |
| US7558180B2 | Light source apparatus provided with beam shaping element and optical pick-up apparatus having the same | Physics | 0 | Active |
| US11130404B2 | Head-up display apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.