Patents by Inventor W. H. H. Gunther

W. H. H. Gunther has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparation of a solid phase dispersion of photoconductive materials
    Patent number: 4030992
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: June 21, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4030991
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: June 21, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4030993
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: June 21, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive material
    Patent number: 4028203
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: June 7, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4016058
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organoselenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: April 5, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4014768
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: March 29, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4013528
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organoselenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: March 22, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4013529
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: March 22, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4013530
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: March 22, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 4007100
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: February 8, 1977
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther
  • Process for preparation of solid phase dispersion of photoconductive materials
    Patent number: 3994791
    Abstract: Process for preparation of a solid phase dispersion of photoconductive materials in an insulating binder matrix from a film forming insulating polymeric resin and an organo-selenium compound capable of undergoing selective decomposition in response to an appropriate stimulus; whereby, elemental selenium is extruded from said organo-selenium compound and deposited in the binder matrix. Because this extrusion/deposition of elemental selenium can be performed selectively, it is possible to prepare binder films having photoconductive image patterns which are suitable for use in range extended and conventional xerography.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: November 30, 1976
    Assignee: Xerox Corporation
    Inventors: Joseph Y. C. Chu, W. H. H. Gunther