Keiichi Arai
28Patents
14h-index
59Co-inventors
84Inventor score
Filing activity: May 14, 1986 → Sep 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6352503B1 | Endoscopic surgery apparatus | Human Necessities | 2,380 | Expired |
| US6569084B1 | Endoscope holder and endoscope device | Human Necessities | 214 | Expired |
| US6689130B2 | Treatment apparatus for endoscope | Human Necessities | 145 | Expired |
| US6458074B1 | Endoscope | Human Necessities | 125 | Expired |
| US5789047A | Flexible, multilayered tube | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5490015A | Actuator apparatus | Physics | 70 | Expired |
| US5924977A | Endoscope system including endoscope and disposable protection cover | Human Necessities | 54 | Expired |
| US6932761B2 | Electrically-bent endoscope | Human Necessities | 47 | Expired |
| US5554098A | Endoscope system including endoscope and disposable protection cover | Human Necessities | 38 | Expired |
| US5458133A | Cover type endoscope apparatus | Human Necessities | 35 | Expired |
| US6110104A | Endoscope system having an endoscope capable of being guided into an endoscope cover | Human Necessities | 34 | Expired |
| US7008376B2 | Electric bending endoscope | Human Necessities | 32 | Expired |
| US5879288A | Endoscope system including both reusable-type and cover-type endoscopes | Human Necessities | 20 | Expired |
| US4705023A | Endoscope having rotatable clamp inserting section | Human Necessities | 16 | Expired |
| US8142448B2 | Endoscopic instruments for suturing tissues in a body cavity | Human Necessities | 14 | Expired |
| US8663097B2 | Insertion device | Physics | 11 | Active |
| US7662092B2 | Endoscope device with electrically actuated bending | Human Necessities | 10 | Expired |
| US7060027B2 | Electric bending endoscope apparatus | Human Necessities | 9 | Expired |
| US7331924B2 | Endoscope apparatus having electric bending endoscope | Human Necessities | 9 | Expired |
| US7722532B2 | Electric bending endoscope | Human Necessities | 7 | Expired |
| US8753263B2 | Insertion apparatus | Emerging Cross-Sectional Technologies | 6 | Active |
| US7979943B2 | Cleaning brush | Human Necessities | 4 | Active |
| US7918790B2 | Electric bending endoscope | Human Necessities | 2 | Active |
| US8758233B2 | Endoscope | Human Necessities | 2 | Active |
| US7955252B2 | Endoscopic treatment system | Human Necessities | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.