Hiroshi Ishii
304Patents
32h-index
424Co-inventors
93Inventor score
Filing activity: Oct 6, 1977 → Mar 22, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5674182A | Endoscope system including endoscope and protection cover | Human Necessities | 134 | Expired |
| US5876326A | Electronic endoscope with grounded spirally-wound lead wires | Human Necessities | 131 | Expired |
| US6741065B1 | Electric device and method for charging and discharging battery unit of the same | Emerging Cross-Sectional Technologies | 112 | Expired |
| US4742369A | Electronic still camera | Emerging Cross-Sectional Technologies | 90 | 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 |
| US7321744B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 89 | Expired |
| US7480476B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 86 | Active |
| US6112046A | Image forming apparatus having recycling of residual toner | Physics | 83 | Expired |
| US4850703A | Method of mixing pulverulent materials and device for practicing the same | Physics | 71 | Expired |
| US5208497A | Linear driving apparatus | Physics | 70 | Expired |
| US6511417B1 | System for detecting the shape of an endoscope using source coils and sense coils | Human Necessities | 67 | Expired |
| US8208015B2 | Endoscope and endoscope apparatus | Electricity | 67 | Active |
| US7098776B2 | Methods and apparatus for vibrotactile communication | Physics | 63 | Expired |
| US8456562B2 | Image pickup unit | Electricity | 63 | Active |
| US7519317B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 62 | Active |
| US8005406B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 59 | Active |
| US6826752B1 | Programming system and thread synchronization mechanisms for the development of selectively sequential and multithreaded computer programs | Physics | 57 | Expired |
| US7835673B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 56 | Active |
| US6589163B2 | Endoscope shape detecting apparatus wherein form detecting processing is controlled according to connection state of magnetic field generating means | Human Necessities | 55 | Expired |
| US7697870B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 53 | Active |
| US6937838B2 | Waste toner collecting device, and image forming apparatus including the waste toner collecting device | Physics | 52 | Expired |
| US4589000A | Ink jet printer of the ink-on-demand type | Performing Operations; Transporting | 49 | Expired |
| US4657951A | Fibrous material-based friction member | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US8195070B2 | Developer container, developer supplying device, and image forming apparatus | Emerging Cross-Sectional Technologies | 47 | Active |
| US5879285A | Aligning means attaching a cable in an imaging apparatus | Human Necessities | 46 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.