Patents by Inventor Hiroju Takanezawa

Hiroju Takanezawa 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).

  • Fixing device, image forming apparatus, and method of controlling fixing device
    Patent number: 8774662
    Abstract: In an embodiment, a fixing device includes: a fixing member that revolves in a circumferential direction in a heated state and transfers heat to a recording medium that is brought into contact with an outer circumferential face thereof; a temperature detecting unit that detects a temperature of the outer circumferential face of the fixing member; and a circumferential-direction position adjusting unit that adjusts a circumferential-direction position of the fixing member such that the recording medium is brought into contact with a high temperature portion out of the high-temperature portion of the outer circumferential face of the fixing member of which temperature detected by the temperature detecting unit is relatively high and a low-temperature portion of which temperature detected by the temperature detecting unit is relatively low.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Jyunya Sakuraba, Hiroju Takanezawa
  • FIXING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING FIXING DEVICE
    Publication number: 20120207495
    Abstract: In an embodiment, a fixing device includes: a fixing member that revolves in a circumferential direction in a heated state and transfers heat to a recording medium that is brought into contact with an outer circumferential face thereof; a temperature detecting unit that detects a temperature of the outer circumferential face of the fixing member; and a circumferential-direction position adjusting unit that adjusts a circumferential-direction position of the fixing member such that the recording medium is brought into contact with a high temperature portion out of the high-temperature portion of the outer circumferential face of the fixing member of which temperature detected by the temperature detecting unit is relatively high and a low-temperature portion of which temperature detected by the temperature detecting unit is relatively low.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 16, 2012
    Inventors: Jyunya Sakuraba, Hiroju Takanezawa