Patents by Inventor Tomohiro Tanoue

Tomohiro Tanoue 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: 9547272
    Abstract: To provide a cleaning blade having an elastic body portion containing urethane rubber and a support member supporting the elastic body portion. A free end portion of the elastic body has a first region in which the Young's modulus gradually decreases in the depth direction from the principal surface facing the surface of the member to be cleaned on the edge face side and a second region in which the Young's modulus does not vary in the depth direction from the principal surface on the side closer to the support member relative to the first region.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: January 17, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shingo Ito, Kenji Karashima, Masaya Kawada, Tomohiro Tanoue, Masahiro Watabe
  • Publication number: 20160124376
    Abstract: To provide a cleaning blade having an elastic body portion containing urethane rubber and a support member supporting the elastic body portion. A free end portion of the elastic body has a first region in which the Young's modulus gradually decreases in the depth direction from the principal surface facing the surface of the member to be cleaned on the edge face side and a second region in which the Young's modulus does not vary in the depth direction from the principal surface on the side closer to the support member relative to the first region.
    Type: Application
    Filed: October 27, 2015
    Publication date: May 5, 2016
    Inventors: Shingo Ito, Kenji Karashima, Masaya Kawada, Tomohiro Tanoue, Masahiro Watabe
  • Patent number: 9170556
    Abstract: A urethane rubber cleaning blade, wherein a surface of a contact portion of the cleaning blade that comes into contact with a member to be cleaned has a Young's modulus (Y0) of 10 mgf/?m2 or more and 400 mgf/?m2 or less, the ratio (Y50/Y0) of the Young's modulus (Y50) of an internal portion of the cleaning blade 50 ?m spaced apart from the surface of the contact portion to the Young's modulus (Y0) is 0.5 or less, and the average rate of change in Young's modulus from the surface to an internal portion of the cleaning blade 20 ?m spaced apart from the surface is greater than or equal to the average rate of change in Young's modulus from the internal portion of the cleaning blade 20 ?m spaced apart from the surface to an internal portion of the cleaning blade 50 ?m spaced apart from the surface.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Karashima, Masaya Kawada, Tomohiro Tanoue, Masahiro Watabe, Shingo Ito
  • Patent number: 9037069
    Abstract: In a method for producing a cleaning blade, a first composition obtained by causing a reaction of diphenylmethane diisocyanate and a first aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is used in an amount of 20 to 40 mol % relative to the diphenylmethane diisocyanate and a second composition containing a urethane rubber-synthesizing catalyst and a second aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is the same as or different from the first aliphatic polyester polyol are mixed so that a relationship between a number of moles (MNCO [mol]) of an NCO group in the first composition and a number of moles (MOH [mol]) of an OH group in the second composition satisfies 0.05?MOH/MNCO?0.20.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: May 19, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Watabe, Masaya Kawada, Tomohiro Tanoue
  • Patent number: 9026027
    Abstract: A cleaning blade includes a polyester urethane rubber. In an IR spectrum measured by ?ATR on the surface of a contact portion of the polyester urethane rubber at which the cleaning blade comes into contact with a member to be cleaned, a ratio (ISI/ISE) of an intensity (ISI) of a C—N peak due to an isocyanurate group included in the polyester urethane rubber to an intensity (ISE) of a C?O peak due to an ester group included in the polyester urethane rubber is 0.65 or more and 2.50 or less. A siloxane compound is present on the surface of the contact portion of the polyester urethane rubber.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Tanoue, Masahiro Watabe, Masaya Kawada
  • Publication number: 20140323667
    Abstract: In a method for producing a cleaning blade, a first composition obtained by causing a reaction of diphenylmethane diisocyanate and a first aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is used in an amount of 20 to 40 mol % relative to the diphenylmethane diisocyanate and a second composition containing a urethane rubber-synthesizing catalyst and a second aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is the same as or different from the first aliphatic polyester polyol are mixed so that a relationship between a number of moles (MNCO [mol]) of an NCO group in the first composition and a number of moles (MOH [mol]) of an OH group in the second composition satisfies 0.05?MOH/MNCO?0.20.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masahiro Watabe, Masaya Kawada, Tomohiro Tanoue
  • Publication number: 20140321895
    Abstract: A cleaning blade includes a polyester urethane rubber. In an IR spectrum measured by ?ATR on the surface of a contact portion of the polyester urethane rubber at which the cleaning blade comes into contact with a member to be cleaned, a ratio (ISI/ISE) of an intensity (ISI) of a C—N peak due to an isocyanurate group included in the polyester urethane rubber to an intensity (ISE) of a C?O peak due to an ester group included in the polyester urethane rubber is 0.65 or more and 2.50 or less. A siloxane compound is present on the surface of the contact portion of the polyester urethane rubber.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomohiro Tanoue, Masahiro Watabe, Masaya Kawada
  • Publication number: 20140321880
    Abstract: A urethane rubber cleaning blade, wherein a surface of a contact portion of the cleaning blade that comes into contact with a member to be cleaned has a Young's modulus (Y0) of 10 mgf/?m2 or more and 400 mgf/?m2 or less, the ratio (Y50/Y0) of the Young's modulus (Y50) of an internal portion of the cleaning blade 50 ?m spaced apart from the surface of the contact portion to the Young's modulus (Y0) is 0.5 or less, and the average rate of change in Young's modulus from the surface to an internal portion of the cleaning blade 20 ?m spaced apart from the surface is greater than or equal to the average rate of change in Young's modulus from the internal portion of the cleaning blade 20 ?m spaced apart from the surface to an internal portion of the cleaning blade 50 ?m spaced apart from the surface.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Inventors: Kenji Karashima, Masaya Kawada, Tomohiro Tanoue, Masahiro Watabe, Shingo Ito