Takakazu Ishigami
12Patents
9h-index
21Co-inventors
72Inventor score
Filing activity: Apr 8, 1992 → Jun 3, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7104951B2 | Endoscope apparatus with drum part to wind insertion part therearound | Human Necessities | 96 | Expired |
| US6371907B1 | Endoscope apparatus driving manipulation wires with drive motor in drum portion | Human Necessities | 86 | Expired |
| US8435173B2 | Endoscope | Human Necessities | 64 | Active |
| US6793622B2 | Electric bending endoscope | Human Necessities | 36 | Expired |
| US6846285B2 | Endoscope apparatus with drum part to wind insertion part therearound | Performing Operations; Transporting | 25 | Expired |
| US8308637B2 | Endoscope | Physics | 23 | Active |
| US5335061A | Endoscope holding apparatus for inspecting the interiors of a reciprocating engine and rotary engine having ignition plug holes, endoscope apparatus including the endoscope holding apparatus and inspecting method | Physics | 20 | Expired |
| US6569086B2 | Controllable bending endoscope | Human Necessities | 18 | Expired |
| US6752758B2 | Endoscope apparatus | Human Necessities | 15 | Expired |
| US8480572B2 | Adapter-type endoscope and method of closely contacting electrical connection portion main body of adapter-type endoscope and electrode, and adapter main body and distal end portion main body | Human Necessities | 7 | Active |
| US8900132B2 | Endoscope apparatus | Physics | 4 | Active |
| US9277856B2 | Illumination device and endoscope apparatus | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.