Kenji Hirose
139Patents
19h-index
164Co-inventors
89Inventor score
Filing activity: Aug 15, 1978 → Oct 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5770936A | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus, and a control method for controlling same | Emerging Cross-Sectional Technologies | 85 | Expired |
| US5321831A | Multiple user electronic filing system for image data using a keyed hierarchical file structure | Emerging Cross-Sectional Technologies | 69 | Expired |
| US7768702B2 | Medical stereo observation system | Electricity | 65 | Active |
| US4839846A | Apparatus for performing floating point arithmetic operations and rounding the result thereof | Physics | 56 | Expired |
| US4811269A | Bit slice multiplication circuit | Physics | 51 | Expired |
| US5345560A | Prefetch buffer and information processing system using the same | Physics | 46 | Expired |
| US4727589A | Picture data storage/retrieval system | Electricity | 39 | Expired |
| US4437127A | Document information filing system | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5014801A | Method and device for rear-wheel steering of automotive vehicle | Performing Operations; Transporting | 34 | Expired |
| US5818188A | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus, and a control method for controlling same | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5253337A | Method and apparatus for searching image information | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5637973A | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus and a control method for controlling same | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4357569A | Control device for a synchronous motor | Electricity | 27 | Expired |
| US6541732B2 | Laser machining apparatus | Performing Operations; Transporting | 26 | Expired |
| US4555803A | Image information filing apparatus and method | Electricity | 25 | Expired |
| US4829948A | Valve operating device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4358722A | Speed detector using resolver | Electricity | 20 | Expired |
| US10782501B2 | Medical observation device | Physics | 20 | Active |
| US4358726A | Current type inverter | Electricity | 19 | Expired |
| US5798622A | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus, and a control method for controlling same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4918646A | Information retrieval apparatus | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6249367A | Optical apparatus | Physics | 18 | Expired |
| US6157097A | Protecting method for inrush current preventing resistor | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7556626B2 | Medical instrument holding apparatus | Human Necessities | 15 | Expired |
| US4259628A | Control device of AC motor | Electricity | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.