Patents by Inventor Hyou Shu

Hyou Shu 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).

  • Two-component developer, and image forming apparatus and image forming method using the developer
    Patent number: 6593048
    Abstract: A two-component developer includes at least a magnetic toner and a magnetic carrier. The magnetic toner has magnetic particles coated with a carbon black layer. The magnetic toner adheres to the magnetic carrier due to the magnetic interaction.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: July 15, 2003
    Assignee: Ricoh Company, Ltd.
    Inventors: Fumihiro Sasaki, Yasuaki Iwamoto, Hiroaki Matsuda, Hiroshi Nakai, Hiroto Higuchi, Hyou Shu, Maiko Kondo
  • Two-component developer, and image forming apparatus and image forming method using the developer
    Publication number: 20020090562
    Abstract: A two-component developer including at least a magnetic toner and a magnetic carrier having magnetic particles coated with carbon black. The magnetic toner adheres to the magnetic carrier due to the magnetic interaction.
    Type: Application
    Filed: October 22, 2001
    Publication date: July 11, 2002
    Inventors: Fumihiro Sasaki, Yasuaki Iwamoto, Hiroaki Matsuda, Hiroshi Nakai, Hiroto Higuchi, Hyou Shu, Maiko Kondo