Yuji Kamiya
26Patents
7h-index
16Co-inventors
66Inventor score
Filing activity: May 12, 1992 → Apr 15, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6740990B2 | Compulsory drive unit for electrical equipment in a vehicle | Performing Operations; Transporting | 84 | Expired |
| US5481337A | Method and apparatus for correcting image formation in accordance with a potential measurement and a density measurement selected along an axial direction of a photosensitive drum | Physics | 25 | Expired |
| US5610689A | Image forming apparatus having failure diagnosing function | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5721627A | Sheet transport apparatus for detecting a color of a document | Electricity | 13 | Expired |
| US5557427A | Image forming apparatus with means for detecting sheet thickness | Electricity | 10 | Expired |
| US6125244A | Image forming apparatus featuring an environmentally responsive voltage switch | Physics | 10 | Expired |
| US6493524B2 | Image forming apparatus | Physics | 7 | Expired |
| US8955323B2 | Compressor | Emerging Cross-Sectional Technologies | 7 | Active |
| US6418280B2 | Electrophotographic apparatus with exposure control for multiple target light portion potentials | Electricity | 7 | Expired |
| US6903844B1 | Image formation apparatus, image formation apparatus control method, and storage medium storing computer-readable program | Electricity | 5 | Expired |
| US7260345B2 | Image forming apparatus with a developer consumption control feature | Physics | 4 | Expired |
| US6822767B2 | Image processing method and image processing apparatus | Electricity | 3 | Expired |
| US7254349B2 | Image forming apparatus having means to control condition of current supply to discharge wire and grid of charging member | Physics | 3 | Expired |
| US7336910B2 | Image forming apparatus with gamma conversion means | Physics | 3 | Active |
| US6456817B1 | Fixing device having an intruding separation member | Physics | 3 | Expired |
| US6538678B2 | Image forming apparatus with development controller | Electricity | 3 | Expired |
| US9897103B2 | Compressor | Emerging Cross-Sectional Technologies | 3 | Active |
| US9347338B2 | Gas compressor | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7259885B2 | Image forming apparatus with gamma conversion means | Physics | 2 | Expired |
| US7499660B2 | Image forming apparatus and image forming method | Physics | 1 | Active |
| US10220677B2 | Vehicle air conditioner having a gas injection cycle | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US6987576B2 | Image forming apparatus with gamma conversion means | Physics | 1 | Expired |
| US10030646B2 | Gas compressor | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10626869B2 | Electric compressor | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US6020176A | Kaurene synthase | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.