Fuji Photo Optical Co., Ltd.
1,318Patents
1Active
1,318Granted
46Portfolio score
Filing activity: Oct 15, 1973 → Aug 26, 2005 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5653677A | Electronic endoscope apparatus with imaging unit separable therefrom | Electricity | 1,725 | Expired |
| US6641528B2 | Bending part of endoscope | Human Necessities | 1,570 | Expired |
| US4108211A | Articulated, four-way bendable tube structure | Human Necessities | 1,343 | Expired |
| US4040413A | Endoscope | Human Necessities | 277 | Expired |
| US6638214B2 | Observation window washing device of endoscope | Human Necessities | 218 | Expired |
| US6795253B2 | Imaging lens | Physics | 205 | Expired |
| US5211176A | Ultrasound examination system | Human Necessities | 200 | Expired |
| US4984878A | Ojective lens for endoscope | Physics | 181 | Expired |
| US6260994A | Battery-powered light source arrangement for endoscope | Human Necessities | 169 | Expired |
| US6181481A | Objective lens for endoscope | Physics | 166 | Expired |
| US5873866A | Flexible sheathing tube construction, and method for fabrication thereof | Human Necessities | 161 | Expired |
| US6482149B1 | Curved part of endoscope | Physics | 159 | Expired |
| US6315714A | Endoscope insertion guide pipe | Human Necessities | 152 | Expired |
| US5777797A | Objective lens system for endoscopes having an image transfer optical fiber bundle | Physics | 150 | Expired |
| US5662116A | Multi-plane electronic scan ultrasound probe | Human Necessities | 146 | Expired |
| US5587839A | Objective lens system for endoscope | Physics | 145 | Expired |
| US6461304B1 | Ultrasound inspection apparatus detachably connected to endoscope | Human Necessities | 144 | Expired |
| US4740047A | Fiber for lateral beaming of laser beam | Physics | 143 | Expired |
| US5855569A | Expandable anchor mechanism for use in endoscopic biopsy channel | Human Necessities | 143 | Expired |
| US5707342A | Protector girdle for endoscopic insertion instrument | Human Necessities | 143 | Expired |
| US4432349A | Articulated tube structure for use in an endoscope | Human Necessities | 140 | Expired |
| US4573450A | Endoscope | Human Necessities | 139 | Expired |
| US4601284A | Endoscope connecting system | Human Necessities | 134 | Expired |
| US6868195B2 | Device for detecting three-dimensional shapes of elongated flexible body | Physics | 133 | Expired |
| US5331465A | Macro lens | Physics | 130 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.