Yuji Sakurai
39Patents
14h-index
68Co-inventors
84Inventor score
Filing activity: Sep 26, 1991 → Jun 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6650213B1 | Electromagnetic-induction coupling apparatus | Electricity | 78 | Expired |
| US5176533A | Electrical connector | Electricity | 67 | Expired |
| US6111306A | Semiconductor device and method of producing the same and semiconductor device unit and method of producing the same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US8798508B2 | Developing member, process cartridge, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 38 | Active |
| US8600273B2 | Developing roller, process cartridge, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 32 | Active |
| US8706011B2 | Developing member, process cartridge, and electrophotographic apparatus | Chemistry; Metallurgy | 30 | Active |
| US6725002B2 | Process cartridge, electrophotographic apparatus and image forming method | Physics | 29 | Expired |
| US8768226B2 | Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatus | Performing Operations; Transporting | 28 | Active |
| US6379997B1 | Semiconductor device and method of producing the same and semiconductor device unit and method of producing the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US8774677B2 | Developing member, process cartridge and electrophotographic image forming apparatus | Physics | 23 | Active |
| US8874012B2 | Developing member, process cartridge and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 18 | Active |
| US9952532B2 | Developing apparatus, electrophotographic process cartridge, and electrophotographic image forming apparatus | Physics | 17 | Active |
| US9921518B2 | Developing roller, with conductive elastic layer having exposed protrusions, cartridge and apparatus | Physics | 16 | Active |
| US7979004B2 | Electrophotographic belt, production method of electrophotographic belt, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 14 | Active |
| US9482986B2 | Member for electrophotography, process cartridge, and electrophotographic image forming apparatus | Physics | 13 | Active |
| US10310447B2 | Electrophotographic member, process cartridge, and electrophotographic image forming apparatus | Physics | 13 | Active |
| US7201967B2 | Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5557145A | Mounting construction and method of a semiconductor device by which deformation of leads is prevented | Electricity | 11 | Expired |
| US7425672B2 | Exterior structure for keyboard instrument | Physics | 8 | Expired |
| US10082741B2 | Member for electrophotography, developing apparatus, and electrophotographic apparatus | Physics | 7 | Active |
| US8182405B2 | Developing roller, developing roller production method, process cartridge, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 7 | Active |
| US10976683B2 | Electrophotographic member, electrophotographic process cartridge, and electrophotographic image forming apparatus | Physics | 5 | Active |
| US6856776B2 | Endless belt comprising a meandering-prevention member, and a process cartridge and an electrophotographic apparatus using such an endless belt | Physics | 4 | Expired |
| US5142599A | Push-on connector | Electricity | 4 | Expired |
| US6795667B2 | Process cartridge and electrophotographic apparatus having an intermediate transfer belt | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.