Patents by Inventor Heigo Ueki

Heigo Ueki 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).

  • Cooling device for cooling recording sheet
    Patent number: 6907220
    Abstract: A cooling device used in an electrophotographic image forming device includes a cooling roller, which is a heat roller, and a backup roller pressed against the cooling roller to form a nip portion therebetween. After being discharged from a fixing device that thermally fixes a toner image onto a recording sheet, the recording sheet passes through the nip portion, whereby the cooling roller cools the recording sheet. The cooling roller is maintained at 100° C. or higher.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 14, 2005
    Assignee: Ricoh Printing Systems, Ltd.
    Inventors: Teruaki Mitsuya, Takashi Suzuki, Heigo Ueki, Daisuke Hara
  • Cooling device for cooling recording sheet
    Publication number: 20030228180
    Abstract: A cooling device used in an electrophotographic image forming device includes a cooling roller, which is a heat roller, and a backup roller pressed against the cooling roller to form a nip portion therebetween. After discharged from a fixing device that thermally fixes a toner image onto a recording sheet, the recording sheet passes through the nip portion, whereby the cooling roller cools the recording sheet. The cooling roller is maintained at 100° C. or greater.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 11, 2003
    Inventors: Teruaki Mitsuya, Takashi Suzuki, Heigo Ueki, Daisuke Hara