Hiroki Yoshida
53Patents
10h-index
58Co-inventors
81Inventor score
Filing activity: Sep 9, 1988 → Jun 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5042063A | Telephone apparatus with voice activated dialing function | Electricity | 90 | Expired |
| US7010160B1 | Backlight scene judging method | Electricity | 59 | Expired |
| US5054053A | Speech recognition system for telephony | Electricity | 39 | Expired |
| US6473231B2 | Variable magnification optical system having image stabilizing function | Physics | 36 | Expired |
| US6606200B1 | Zoom lens device and optical apparatus provided with the same | Physics | 32 | Expired |
| US6606194B2 | Variable magnification optical system having image stabilizing function | Physics | 25 | Expired |
| US6963663B1 | Image processing for image correction | Physics | 17 | Expired |
| US6362470B1 | Optical scanning apparatus and image forming apparatus and electrophotographic printer using such scanning apparatus | Electricity | 16 | Expired |
| US6476955B1 | Multi-beam scanning optical system and image forming apparatus using it | Electricity | 14 | Expired |
| US8678368B2 | Image forming apparatus | Performing Operations; Transporting | 10 | Active |
| US7975293B2 | Authentication system, authentication method and terminal device | Electricity | 9 | Active |
| US6914620B2 | Multi-beam scanning optical system and image forming apparatus using the same | Physics | 8 | Expired |
| US7342995B2 | Apparatus for estimating specific polymer crystal | Physics | 6 | Expired |
| US7918450B2 | Sheet processing apparatus, sheet processing method, and image forming apparatus | Performing Operations; Transporting | 5 | Active |
| US7098938B2 | Multi-beam scanning optical apparatus and image forming apparatus using the same | Physics | 4 | Expired |
| US7251053B1 | Image processing apparatus and method | Physics | 4 | Expired |
| US6833855B2 | Multi-beam scanning optical system with reduced interbeam displacement and image forming apparatus using the same | Physics | 3 | Expired |
| US5446782A | Terminal connecting device having an auto data receiving function | Electricity | 2 | Expired |
| US7136208B2 | Light scanning apparatus and image forming apparatus using the same | Physics | 2 | Expired |
| US6667822B2 | Scanning optical system and image forming apparatus using the same | Physics | 2 | Expired |
| US8196915B2 | Sheet returning unit for post processing apparatus | Physics | 1 | Active |
| US7098937B2 | Multi-beam scanning optical system, image forming apparatus, and color image forming apparatus | Performing Operations; Transporting | 1 | Expired |
| US6825961B2 | Multi-beam scanning optical system and image forming apparatus using it | Electricity | 1 | Expired |
| US6667820B2 | Multi-beam scanning optical system and image forming apparatus using it | Electricity | 1 | Expired |
| US7529419B2 | Data processing device capable of processing image data with small memory capacity, image processing method, and program product | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.