Tsutomu Okada
79Patents
25h-index
71Co-inventors
91Inventor score
Filing activity: Aug 25, 1975 → Jul 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6071233A | Endoscope | Human Necessities | 1,851 | Expired |
| US8876698B2 | Pressing member, endoscopic treatment system, and endoscopic suturing device | Human Necessities | 422 | Active |
| US4592341A | Method and apparatus for guiding prosthesis | Human Necessities | 190 | Expired |
| US7507200B2 | Diathermic snare, medical instrument system using the snare, and method of assembling the medical instrument system | Human Necessities | 190 | Expired |
| US5059199A | Treating device for endoscopes | Human Necessities | 172 | Expired |
| US6093196A | Basket type grasping tool for surgery | Human Necessities | 171 | Expired |
| US8105230B2 | Medical system | Human Necessities | 170 | Active |
| US4638802A | High frequency instrument for incision and excision | Human Necessities | 162 | Expired |
| US4718419A | Snare assembly for endoscope | Human Necessities | 155 | Expired |
| US5163938A | High-frequency surgical treating device for use with endoscope | Human Necessities | 137 | Expired |
| US4724836A | High-frequency incision tool | Human Necessities | 106 | Expired |
| US7775973B2 | Endoscope system | Human Necessities | 91 | Active |
| US4741335A | Calculus crushing apparatus | Human Necessities | 81 | Expired |
| US4643187A | High-frequency incising and excising instrument | Human Necessities | 80 | Expired |
| US8262565B2 | Endoscope system | Human Necessities | 67 | Active |
| US4691705A | Calculus crushing apparatus | Human Necessities | 59 | Expired |
| US5078144A | System for applying ultrasonic waves and a treatment instrument to a body part | Human Necessities | 58 | Expired |
| US4828990A | Method for purifying an interferon | Emerging Cross-Sectional Technologies | 51 | Expired |
| US7122002B2 | Endoscope hood and endoscopic mucosa cutting device | Human Necessities | 49 | Expired |
| US7063661B2 | Endoscopic mucous membrane resection instrument and endoscopic mucous membrane resection method | Human Necessities | 43 | Expired |
| US4768505A | Calculus crushing apparatus | Human Necessities | 41 | Expired |
| US7008420B2 | High frequency surgical instrument | Human Necessities | 36 | Expired |
| US7918785B2 | Medical apparatus, treatment instrument for endoscope and endoscope apparatus | Human Necessities | 31 | Active |
| US6605104B2 | Grasping forceps for endoscope | Human Necessities | 31 | Expired |
| US7081121B2 | Apparatus for ligating living tissues | Human Necessities | 27 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.