Patents by Inventor Boom-jun Kim

Boom-jun Kim 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).

  • Patent number: 7354534
    Abstract: A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotoreceptor can maintain higher charge potential and low residual or discharge potential, the lifetime of the organophotoreceptor can be extended. Also, since the organophotoreceptor has good solvent resistance and abrasion resistance, it can be advantageously used for liquid toner.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: April 8, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam-jeong Lee, Saburo Yokota, Kyung-yol Yon, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim
  • Publication number: 20070065740
    Abstract: An electrophotographic photoreceptor including: an electrically conductive substrate; a charge generating layer disposed on the electrically conductive substrate and includes a charge generating material dispersed or dissolved in a binder resin and an asymmetric naphthalenetetracarboxylic acid diimide derivative having a nitro group dispersed or dissolved in the binder resin. The photoreceptor also has a charge transporting layer that is disposed on the charge generating layer and includes a charge transporting material that is dispersed or dissolved in the binder resin. An electrophotographic image forming apparatus including the electrophotographic photoreceptor. The two-layered type electrophotographic photoreceptor has good interlayer adhesive force and good electrical properties such as good photosensitivity and low residual potential after exposure.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 22, 2007
    Inventors: Seung-ju Kim, Boom-jun Kim, Saburo Yokota, Kyung-yol Yon, Moto Makino, Hwan-koo Lee, Ji-young Lee
  • Patent number: 7172843
    Abstract: A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotoreceptor can maintain higher charge potential and low residual or discharge potential, the lifetime of the organophotoreceptor can be extended. Also, since the organophotoreceptor has good solvent resistance and abrasion resistance, it can be advantageously used for liquid toner.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: February 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam-jeong Lee, Saburo Yokota, Kyung-yol Yon, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim
  • Publication number: 20070026331
    Abstract: A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotoreceptor can maintain higher charge potential and low residual or discharge potential, the lifetime of the organophotoreceptor can be extended. Also, since the organophotoreceptor has good solvent resistance and abrasion resistance, it can be advantageously used for liquid toner.
    Type: Application
    Filed: October 3, 2006
    Publication date: February 1, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-jeong Lee, Saburo Yokota, Kyung-yol Yon, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim
  • Publication number: 20060142444
    Abstract: A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotoreceptor can maintain higher charge potential and low residual or discharge potential, the lifetime of the organophotoreceptor can be extended. Also, since the organophotoreceptor has good solvent resistance and abrasion resistance, it can be advantageously used for liquid toner.
    Type: Application
    Filed: February 27, 2006
    Publication date: June 29, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-jeong Lee, Saburo Yokota, Kyung-yol Yon, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim
  • Publication number: 20040142260
    Abstract: A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotoreceptor can maintain higher charge potential and low residual or discharge potential, the lifetime of the organophotoreceptor can be extended. Also, since the organophotoreceptor has good solvent resistance and abrasion resistance, it can be advantageously used for liquid toner.
    Type: Application
    Filed: October 9, 2003
    Publication date: July 22, 2004
    Inventors: Nam-jeong Lee, Saburo Yokota, Kyung-yol Yon, Hwan-koo Lee, Hae-ree Joo, Boom-jun Kim