Kohkoku Ri
11Patents
10h-index
7Co-inventors
57Inventor score
Filing activity: Jul 7, 1999 → Jul 1, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6210848A | Electrophotographic photoconductor, and process cartridge and image forming apparatus using the same | Physics | 53 | Expired |
| US6444387B2 | Image bearing material, electrophotographic photoreceptor using the image bearing material, and image forming apparatus using the photoreceptor | Physics | 50 | Expired |
| US6187492A | Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor | Chemistry; Metallurgy | 48 | Expired |
| US6187494A | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor | Physics | 35 | Expired |
| US6664361B2 | Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor | Chemistry; Metallurgy | 19 | Expired |
| US6576386B1 | AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE | Physics | 19 | Expired |
| US6303736A | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor | Physics | 18 | Expired |
| US6486293B1 | Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor | Chemistry; Metallurgy | 16 | Expired |
| US6790571B2 | Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus | Physics | 15 | Expired |
| US6919419B2 | AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTRO-PHOTOGRAPHIC PHOTOCONDUCTOR, ELECTRO-PHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE | Physics | 10 | Expired |
| US7071285B2 | Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.