Katsuhiro Morooka
23Patents
18h-index
16Co-inventors
70Inventor score
Filing activity: Jun 28, 1996 → Jul 1, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6066428A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chemistry; Metallurgy | 51 | Expired |
| US5789128A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 50 | Expired |
| US5942363A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 49 | Expired |
| US6187492A | Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor | Chemistry; Metallurgy | 48 | Expired |
| US5846680A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 47 | Expired |
| US6191249A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 41 | Expired |
| US6194535A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chemistry; Metallurgy | 38 | Expired |
| US5976746A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 37 | Expired |
| US5910561A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 37 | Expired |
| US6187494A | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor | Physics | 35 | Expired |
| US6069224A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 34 | Expired |
| US6027846A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 31 | Expired |
| US6172176A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 25 | Expired |
| US6045959A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 24 | Expired |
| US6316577A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 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 |
| US6664361B2 | Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor | Chemistry; Metallurgy | 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 |
| US6130310A | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Physics | 14 | 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.