|
| US3951654 | 20 Jun 1974 | 20 Apr 1976 | Xerox Corporation | Method for enhancement in the rate and efficiency of photodischarge of electrostatographic imaging members comprising phthalocyanine |
| US3989860 | 22 Jul 1974 | 2 Nov 1976 | Xerox Corporation | Repair technique for photoreceptors |
| US4214907 | 5 Jan 1978 | 29 Jul 1980 | Mita Industrial Company, Ltd. | Photosensitive material for electrophotography having a polyvinyl carbazole derivative, phthalocyanine, and an electron-acceptor |
| US4218528 | 8 Jun 1978 | 19 Aug 1980 | Konishiroku Photo Industry Co., Ltd. | Electrophotographic photoreceptor with phthalocyanine in phenol resin binder |
| US4362801 | 9 Oct 1981 | 7 Dec 1982 | Fujitsu Limited | Copper phthalocyanine photosensitive material for electrophotography with binder and an oxadiazole |
| US4378418 | 26 Sep 1979 | 29 Mar 1983 | Xerox Corporation | Hole injecting contact for overcoated photoreceptors |
| US4477547 | 6 Jan 1983 | 16 Oct 1984 | Mitsubishi Paper Mills, Ltd. | Method for making complex layer type lithografic printing plate |
| US4481270 | 28 Apr 1983 | 6 Nov 1984 | Ricoh Systems, Inc. | Photoreceptor containing squaric acid methine dyes |
| US4500621 | 11 Apr 1983 | 19 Feb 1985 | Ricoh Systems, Inc. | Sensitive electrophotographic plates containing squaric acid methine dyes suspended in a binder |
| US4507374 | 15 Apr 1983 | 26 Mar 1985 | Hitachi, Ltd. Toyo Ink Manufacturing Co., Ltd. | Electrophotographic recording medium containing .tau. and .eta. metal-free phthalocyanine |
| US4539284 | 16 Apr 1984 | 3 Sep 1985 | Xerox Corporation | Developer compositions with infrared absorbing additives |
| US4548886 | 3 Jun 1983 | 22 Oct 1985 | Canon Kabushiki Kaisha | Radiation sensitive organic thin film comprising an azulenium salt |
| US4557989 | 13 Sep 1984 | 10 Dec 1985 | Xerox Corporation | Photoresponsive imaging members with dihydroxy metal phthalocyanine compositions |
| US4565761 | 15 Jun 1984 | 21 Jan 1986 | Canon Kabushiki Kaisha | Electrophotographic process utilizing an azulenium salt-containing photosensitive member |
| US4587188 | 31 Aug 1983 | 6 May 1986 | Oki Electric Industry Co., Ltd. | Phthalocyanine photoconductor for electrophotography |
| US4592977 | 19 Jun 1984 | 3 Jun 1986 | Toppan Printing Co., Ltd. Toyo Ink Mfg. Co., Ltd. | Lithographic printing plate |
| US4592984 | 9 Jul 1984 | 3 Jun 1986 | Canon Kabushiki Kaisha | Multilayer electrophotographic photosensitive member |
| US4618554 | 26 Mar 1985 | 21 Oct 1986 | Toyo Ink Mfg. Co., Ltd. Minolta Camera Kabushiki Kaisha | Electrophotographic photoreceptor having photosensitive layer made of a phthalocyanine treated with an acrylic resin |
| US4664997 | 1 Oct 1985 | 12 May 1987 | Mitsubishi Chemical Industries, Ltd. | Crystalline oxytitanium phthalocyanine and photoreceptor for use in electrophotography |
| US4668600 | 10 May 1985 | 26 May 1987 | Hoechst Aktiengesellschaft | Electrophotographic recording material containing an n-type conducting pigment |
| US4711668 | 14 Apr 1986 | 8 Dec 1987 | Ricoh Company, Ltd. | Aqueous ink composition |
| US4748099 | 30 Jun 1987 | 31 May 1988 | Konishiroku Photo Industry Co., Ltd. | Process for forming printing plate using an electrophotographic material for obtaining toner image |
| US4748480 | 12 Jun 1987 | 31 May 1988 | Xerox Corporation | Controlled authentic document recognition equipment |
| US4749637 | 23 Apr 1987 | 7 Jun 1988 | Hitachi Chemical Co., Ltd. | Electrophotographic plate with silicon naphthalocyanine |
| US4757472 | 31 Dec 1986 | 12 Jul 1988 | Tecon Memory, Inc. | Electrophotographic optical memory system |
| US4800145 | 14 Jul 1987 | 24 Jan 1989 | Imperial Chemical Industries, PLC | Substituted phthaloayanine photoconductor and charge transport phase |
| US4882254 | 5 Jul 1988 | 21 Nov 1989 | Xerox Corporation | Photoconductive imaging members with mixtures of photogenerator pigment compositions |
| US4963452 | 20 Oct 1988 | 16 Oct 1990 | | Photosensitive member for inputting digital light |
| US4971877 | 25 Oct 1988 | 20 Nov 1990 | Mita Industrial Co., Ltd. | .alpha.-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same |
| US4981767 | 27 Jun 1989 | 1 Jan 1991 | Mitsubishi Petrochemical Co., Ltd. | Photoconductive mixed crystals of phthalocyanine compounds and process for producing the same |
| US4983483 | 14 Apr 1989 | 8 Jan 1991 | Industrial Technology Research Institute | Organic photoreceptor for use in electrophotography employing squarylium and copper phthalocyanine as charge generation materials |
| US5032480 | 27 Dec 1988 | 16 Jul 1991 | Fuji Xerox Co., Ltd. | Multilayer electrophotographic photoreceptor |
| US5034295 | 29 Dec 1989 | 23 Jul 1991 | Xerox Corporation | Flexible electrostatographic imaging system |
| US5066557 | 29 Dec 1989 | 19 Nov 1991 | Xerox Corporation | Styrene butadiene copolymers as binders in mixed pigment generating layer |
| US5100752 | 7 May 1990 | 31 Mar 1992 | Xerox Corporation | Processes for the preparation of phthalocyanines for electrophotography |
| US5106536 | 30 Aug 1990 | 21 Apr 1992 | Mita Industrial Co., Ltd. | .alpha.-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same |
| US5132189 | 4 Sep 1990 | 21 Jul 1992 | Fuji Electric Co., Ltd. | Photoconductor for electrophotography |
| US5178981 | 27 Feb 1991 | 12 Jan 1993 | Fuji Electric Co., Ltd. | Photoconductor for electrophotography with a charge generating substance comprising a polycyclic and azo compound |
| US5198318 | 27 Nov 1991 | 30 Mar 1993 | Fuji Electric Co., Ltd. | Bisazo photoconductor for electrophotography |
| US5270142 | 27 Jun 1990 | 14 Dec 1993 | Xerox Corporation | Photo-erasable ionographic receptor |
| US5275898 | 10 Feb 1993 | 4 Jan 1994 | Fuji Electric Co., Ltd. | Bisazo photoconductor for electrophotography |
| US5286590 | 11 Jun 1993 | 15 Feb 1994 | Fuji Electric Co., Ltd. | Bisazo photoconductor for electrophotography |
| US5292602 | 11 Jun 1993 | 8 Mar 1994 | Fugi Electric Co., Ltd. | Bisazo photoconductor for electrophotography |
| US5292608 | 11 Jun 1993 | 8 Mar 1994 | Fugi Electric Co., Ltd. | Bisazo photoconductor for electrophotography |
| US5304444 | 12 Apr 1993 | 19 Apr 1994 | Matsushita Electric Industrial Co., Ltd. | Photosensitive material for electrophotography comprising organic photoconductive substances in a binder polymer having aromatic rings, OH groups and bromine joined at the aromatic ring or rings |
| US5312706 | 29 May 1992 | 17 May 1994 | Xerox Corporation | Infra-red photoconductor based on octa-substituted phthalocyanines |
| US5316881 | 18 Dec 1992 | 31 May 1994 | Fuji Electric Co., Ltd. | Photoconductor for electrophotgraphy containing benzidine derivative |
| US5368966 | 12 May 1993 | 29 Nov 1994 | Fuji Electric Co., Ltd. | Photosensitive member for electrophotography with indole derivative |
| US5393627 | 1 Feb 1993 | 28 Feb 1995 | Fuji Electric Co., Ltd. | Photoconductor for electrophotography |
| US5441837 | 29 Jul 1994 | 15 Aug 1995 | Xerox Corporation | Photoconductive imaging members with acetoxymetal phthalocyanines |
| US5506079 | 28 Feb 1995 | 9 Apr 1996 | Ricoh Company, Ltd. Leonid S. Grigoryan Kyuya Yakushi | Magnetic composition, magnetic toner and ink containing the magnetic composition |
| US5536611 | 31 Mar 1995 | 16 Jul 1996 | Minnesota Mining and Manufacturing Company | Dispersing polymers for phthalocyanine pigments used in organic photoconductors |
| US5545499 | 7 Jul 1995 | 13 Aug 1996 | Lexmark International, Inc. | Electrophotographic photoconductor having improved cycling stability and oil resistance |
| US5665503 | 12 Aug 1994 | 9 Sep 1997 | Mitsubishi Denki Kabushiki Kaisha | Positive charge type organic photoconductive layer |
| US5686216 | 14 Nov 1995 | 11 Nov 1997 | Mitsubishi Denki Kabushiki Kaisha | Photosensitive member and method of producing the same |
| US5721080 | 20 Dec 1996 | 24 Feb 1998 | AGFA-GEVAERT, N.V. | Electrophotographic material containing particular phthalocyanines |
| US5992322 | 12 Sep 1997 | 30 Nov 1999 | Howard A. Fromson | Waterless lithographic printing plate having a cyanoacrylate image |
| US6001522 | 15 Jul 1993 | 14 Dec 1999 | Imation Corp. | Barrier layer for photoconductor elements comprising an organic polymer and silica |
| US6014931 | 2 Sep 1998 | 18 Jan 2000 | Howard A. Fromson | Imaging a lithographic printing plate |
| US6283030 | 18 Jan 2000 | 4 Sep 2001 | Howard A. Fromson | Imaging a lithographic printing plate |
| US6984479 | 24 Apr 2002 | 10 Jan 2006 | Fuji Electric Imaging Device Co., Ltd. | Electrophotographic photoconductor and manufacturing method therefore |
| US7135261 | 22 Aug 2003 | 14 Nov 2006 | Fuji Electric Imaging Device Co., Ltd. | Multi-layered organic electrophotographic photoconductor |
| US7662529 | 13 Sep 2006 | 16 Feb 2010 | Fuji Electric Device Technology Co., Ltd. | Electrophotographic photoconductor |
| US8110326 | 3 Jun 2008 | 7 Feb 2012 | Ricoh Company Limited | Electrophotographic photoreceptor, image forming apparatus, and process cartridge |