Yasuo Hirata
50Patents
17h-index
75Co-inventors
87Inventor score
Filing activity: Jul 3, 1975 → Aug 25, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5531664A | Bending actuator having a coil sheath with a fixed distal end and a free proximal end | Human Necessities | 261 | Expired |
| US5624380A | Multi-degree of freedom manipulator | Human Necessities | 260 | Expired |
| US6796939B1 | Electronic endoscope | Electricity | 190 | Expired |
| US6540670B1 | Endoscope system | Human Necessities | 141 | Expired |
| US4783779A | Frequency assignment system in FDMA communication system | Electricity | 123 | Expired |
| US6432041B1 | Endoscope shape detecting apparatus wherein form detecting processing is controlled according to connection state of magnetic field generating means | Human Necessities | 89 | Expired |
| US5679216A | Method of manufacturing a multi-degree-of-freedom manipulator | Human Necessities | 81 | Expired |
| US6511417B1 | System for detecting the shape of an endoscope using source coils and sense coils | Human Necessities | 67 | Expired |
| US6589163B2 | Endoscope shape detecting apparatus wherein form detecting processing is controlled according to connection state of magnetic field generating means | Human Necessities | 55 | Expired |
| US4462101A | Maximum likelihood error correcting technique | Electricity | 38 | Expired |
| US6793622B2 | Electric bending endoscope | Human Necessities | 36 | Expired |
| US4456988A | Satellite repeater | Electricity | 27 | Expired |
| US4578800A | Synchronization circuit for a Viterbi decoder | Electricity | 25 | Expired |
| US7591781B2 | Endoscope system with insertion direction changing guides | Physics | 25 | Expired |
| US6773394B2 | System for detecting the shape of an endoscope using source coils and sense coils | Human Necessities | 20 | Expired |
| US4075429A | Transmultiplexer | Electricity | 19 | Expired |
| US7000153B2 | Computer apparatus and method of diagnosing the computer apparatus and replacing, repairing or adding hardware during non-stop operation of the computer apparatus | Physics | 17 | Expired |
| US7801666B2 | Air-fuel ratio detection apparatus of internal combustion engine | Emerging Cross-Sectional Technologies | 17 | Active |
| US7762950B2 | Endoscope | Human Necessities | 15 | Active |
| US4527279A | Synchronization circuit for a Viterbi decoder | Electricity | 14 | Expired |
| US6367455B2 | Fuel supply amount controller for internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US8043211B2 | Endoscope device with a heat removal portion | Human Necessities | 12 | Active |
| US4146893A | System for compensating for cross polarization coupling | Electricity | 12 | Expired |
| US7356985B2 | Air-fuel ratio controller for internal combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US7691056B2 | Endoscope apparatus | Human Necessities | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.