Patents by Inventor Yuzuru Kudoh

Yuzuru Kudoh 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: 10185259
    Abstract: An endless belt includes a base layer and a resin layer. The base layer includes a metal film. The resin layer is laminated on an outer side of the base layer. The resin layer includes edge portions in an axial direction with at least one edge portion of the edge portions made narrower than the base layer in the axial direction such that the outer side of the base layer is exposed.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: January 22, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuzuru Kudoh, Hiroyuki Endo, Tetsushi Aimi
  • Patent number: 9897954
    Abstract: A base for a fixing belt comprising at least: a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio I(200)/I(111) calculated based on a ratio between a peak strength of (200) crystal face and a peak strength of (111) crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: February 20, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh, Yasuhide Fujiwara
  • Publication number: 20170269520
    Abstract: An endless belt includes a base layer and a resin layer. The base layer includes a metal film. The resin layer is laminated on an outer side of the base layer. The resin layer includes edge portions in an axial direction with at least one edge ponton of the edge portions made narrower than the base layer in the axial direction such that the outer side of the base layer is exposed.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 21, 2017
    Inventors: Yuzuru KUDOH, Hiroyuki ENDO, Tetsushi AIMI
  • Patent number: 9383698
    Abstract: A fixing belt substrate for an image forming apparatus is prepared by an electroforming process. The fixing belt substrate contains nickel of prescribed weight percent, phosphorus of from about 0.4 weight percent or more to about 0.7 weight percent or less, sulfur of from about 0.003 weight percent or more to about 0.02 weight percent or less, and carbon of from about 0.012 weight percent or more to about 0.03 weight percent or less.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: July 5, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kengo Fujie, Yasuomi Mikami, Yasuhide Fujiwara, Yuzuru Kudoh, Takaaki Konno
  • Publication number: 20160170352
    Abstract: A base for a fixing belt comprising at least: a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio I(200)/I(111) calculated based on a ratio between a peak strength of (200) crystal face and a peak strength of (111) crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Hiroyuki ENDO, Shigeru FUJITA, Yuzuru KUDOH, Yasuhide FUJIWARA
  • Patent number: 9291969
    Abstract: A base for a fixing belt includes a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio calculated based on a ratio between a peak strength of crystal face and a peak strength of crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: March 22, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh, Yasuhide Fujiwara
  • Publication number: 20140328610
    Abstract: A fixing belt substrate for an image forming apparatus is prepared by an electroforming process. The fixing belt substrate contains nickel of prescribed weight percent, phosphorus of from about 0.4 weight percent or more to about 0.7 weight percent or less, sulfur of from about 0.003 weight percent or more to about 0.02 weight percent or less, and carbon of from about 0.012 weight percent or more to about 0.03 weight percent or less.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 6, 2014
    Inventors: Kengo FUJIE, Yasuomi Mikami, Yasuhide Fujiwara, Yuzuru Kudoh, Takaaki Konno
  • Publication number: 20140241771
    Abstract: A base for a fixing belt comprising at least: a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio I(200)/I(111) calculated based on a ratio between a peak strength of (200) crystal face and a peak strength of (111) crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Inventors: HIROYUKI ENDO, SHIGERU FUJITA, YUZURU KUDOH, YASUHIDE FUJIWARA
  • Patent number: 8070476
    Abstract: A thermal insulation stamper includes a first metal layer, a heat insulating layer, an intermediate layer, a conductive coating, and a second metal layer. The first metal layer has a fine pattern on an exposed surface. The heat insulating layer is formed of a heat-resistant resin and overlies the first metal layer. The heat-resistant resin contains oxygen. The intermediate layer overlies the heat insulating layer. The conductive coating overlies the intermediate metal layer. The second metal layer overlies the conductive coating. A region with a high concentration of oxygen is formed in the vicinity of an interface between the heat insulating layer and the intermediate layer. A method for producing such a thermal insulation stamper is also disclosed.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: December 6, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Kotaka, Yuzuru Kudoh
  • Publication number: 20090074903
    Abstract: A thermal insulation stamper includes a first metal layer, a heat insulating layer, an intermediate layer, a conductive coating, and a second metal layer. The first metal layer has a fine pattern on an exposed surface. The heat insulating layer is formed of a heat-resistant resin and overlies the first metal layer. The heat-resistant resin contains oxygen. The intermediate layer overlies the heat insulating layer. The conductive coating overlies the intermediate metal layer. The second metal layer overlies the conductive coating. A region with a high concentration of oxygen is formed in the vicinity of an interface between the heat insulating layer and the intermediate layer. A method for producing such a thermal insulation stamper is also disclosed.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Inventors: Kazuhiro Kotaka, Yuzuru Kudoh
  • Patent number: 6170988
    Abstract: A self-acting air bearing wherein an abrasion-generated substance is generated by rotation of a shaft and a bearing and is used as a lubricant. As a result, a motor of low cost and stable rotation in which it is not necessary to insert special lubricant into the shaft or the bearing previously can be achieved. Moreover, in a polygon motor having such a lubrication structure, since polluting of a writing system is not feared, reliability for a long time period can be obtained.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: January 9, 2001
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsuyuki Ohkubo, Yuzuru Kudoh, Kenichi Hiratsuka