Patents by Inventor Hideyuki Yasufuku

Hideyuki Yasufuku 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).

  • Heater lamp for fixation, fixing device, and image forming apparatus
    Patent number: 9778605
    Abstract: A heater lamp for fixation and a method of producing the heater lamp are provided. The heater lamp includes a heat generator and a protective casing to cover the heat generator, in which an amount of carbon in an external surface of the protective casing as detected by an X-ray photoelectron spectroscopic method is equal to or less than 12 atomic %. The method of producing a heater lamp for fixation includes preparing a heat generator; preparing a protective casing to cover the heat generator; and heating the heat generator in an atmosphere containing oxygen gas.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 3, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiyuki Kabata, Hideyuki Yasufuku, Hiroyuki Shimada, Kazumi Kuwata, Takeshi Shibuya
  • HEATER LAMP FOR FIXATION, FIXING DEVICE, AND IMAGE FORMING APPARATUS
    Publication number: 20140348496
    Abstract: A heater lamp for fixation and a method of producing the heater lamp are provided. The heater lamp includes a heat generator and a protective casing to cover the heat generator, in which an amount of carbon in an external surface of the protective casing as detected by an X-ray photoelectron spectroscopic method is equal to or less than 12 atomic %. The method of producing a heater lamp for fixation includes preparing a heat generator; preparing a protective casing to cover the heat generator; and heating the heat generator in an atmosphere containing oxygen gas.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Inventors: Toshiyuki KABATA, Hideyuki YASUFUKU, Hiroyuki SHIMADA, Kazumi KUWATA, Takeshi SHIBUYA
  • Worm optical recording medium
    Patent number: 8147942
    Abstract: A write-once-read-many optical recording medium is disclosed that includes a support substrate; a recording layer on the support substrate, the recording layer containing an oxide of one of a metal and a metalloid as a principal component; and a layer adjacent to the recording layer. The recording layer includes a region where a constituent element of the adjacent layer is dispersed. Recording and reproduction are performable with laser light of a blue wavelength region.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: April 3, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Noboru Sasa, Masayuki Fujiwara, Yoshitaka Hayashi, Toshishige Fujii, Toshihide Sasaki, Hiroyoshi Sekiguchi, Hideyuki Yasufuku, Kawori Tanaka, Kengo Makita, Noriyuki Iwata
  • WORM OPTICAL RECORDING MEDIUM
    Publication number: 20090197117
    Abstract: A write-once-read-many optical recording medium is disclosed that includes a support substrate; a recording layer on the support substrate, the recording layer containing an oxide of one of a metal and a metalloid as a principal component; and a layer adjacent to the recording layer. The recording layer includes a region where a constituent element of the adjacent layer is dispersed. Recording and reproduction are performable with laser light of a blue wavelength region.
    Type: Application
    Filed: April 1, 2008
    Publication date: August 6, 2009
    Inventors: Noboru Sasa, Masayuki Fujiwara, Yoshitaka Hayashi, Toshishige Fujii, Toshihide Sasaki, Hiroyoshi Sekiguchi, Hideyuki Yasufuku, Kawori Tanaka, Kengo Makita, Noriyuki Iwata