Patents by Inventor Junichiro Natori

Junichiro Natori 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).

  • Publication number: 20140241770
    Abstract: A fixing member used for fixing toner includes a base, an elastic layer provided on an outer circumference of the base, and a release layer provided on an outer circumference of the elastic layer. The elastic layer includes silicone rubber, carbon fibers, saturated hydrocarbon having a liquid form at room temperature, and hole portions.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 28, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuko ARIZUMI, Tomoaki SUGAWARA, Tsuneaki KONDOH, Junichiro NATORI
  • Publication number: 20140205334
    Abstract: A pressing member includes a heat resistant material, highly heat conductive needle shaped fillers included in the heat resistant material, and hole portions included in the heat resistant material. The pressing member is provided in a fixing device including a fixing member, a heating member to heat the fixing member, and a pressure roller. The pressing member is arranged to press the fixing member and form a nip portion between the fixing member and the pressure roller through which a recording sheet passes.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 24, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tsuneaki Kondoh, Tomoaki SUGAWARA, Yuko ARIZUMI, Junichiro NATORI
  • Publication number: 20140199102
    Abstract: A fixing member for electrophotographic fixing includes a base body; an elastic layer; and an outermost surface releasing layer. The elastic layer and the outermost surface releasing layer are laminated on the base body. The elastic layer is a continuous layer including fibrous filler distributed in a portion of the elastic layer towards the outermost surface releasing layer.
    Type: Application
    Filed: January 7, 2014
    Publication date: July 17, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tomoaki Sugawara, Tsuneaki Kondoh, Junichiro Natori
  • Publication number: 20130322942
    Abstract: To provide a fixing member, which contains a base, and a polyorganosiloxane layer provided on the base, where the polyoranosiloxane layer contains polyoranosiloxane including a silicon atom bonded to three or four oxygen atoms, and wherein the fixing member is designed to be used in a process for heating a toner image on a recording medium to fix the toner image onto the recording medium.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 5, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tsuneaki Kondoh, Tomoaki Sugawara, Junichiro Natori
  • Patent number: 8380113
    Abstract: A fixing member including a substrate and an elastic layer provided on a surface of the substrate. The elastic layer includes a fluorosilicone rubber including carbon fibers and voids.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: February 19, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichiro Natori, Tsuneaki Kondoh, Tomoaki Sugawara
  • Publication number: 20120322967
    Abstract: To provide a fixing member, which contains an outermost layer formed of an elastic material, where the fixing member is used in a process for fixing a toner image on a recording medium by heating, and the outermost layer has peel strength of 20 N/cm2 or lower.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 20, 2012
    Inventors: Tsuneaki KONDOH, Junichiro Natori, Tomoaki Sugawara
  • Patent number: 8301068
    Abstract: To provide a fixing member for fixing to a recording medium an unfixed image formed with a developer, the fixing member including: a base material; an elastic layer which is provided outside the base material and has an elastic deformation property; and a release layer which is provided outside the elastic layer and promotes separation of the recording medium from the fixing member, wherein the release layer has a plurality of through-holes formed between its front surface and its surface on the opposite side to the front surface, and part of the elastic layer in contact with the release layer can fill the through-holes upon provision of pressure for fixing the unfixed image to the recording medium.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 30, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsuneaki Kondoh, Junichiro Natori, Tomoaki Sugawara
  • Publication number: 20100129123
    Abstract: A fixing member including a substrate and an elastic layer provided on a surface of the substrate. The elastic layer includes a fluorosilicone rubber including carbon fibers and voids.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 27, 2010
    Inventors: Junichiro Natori, Tsuneaki Kondoh, Tomoaki Sugawara
  • Publication number: 20100119269
    Abstract: To provide a fixing member for fixing to a recording medium an unfixed image formed with a developer, the fixing member including: a base material; an elastic layer which is provided outside the base material and has an elastic deformation property; and a release layer which is provided outside the elastic layer and promotes separation of the recording medium from the fixing member, wherein the release layer has a plurality of through-holes formed between its front surface and its surface on the opposite side to the front surface, and part of the elastic layer in contact with the release layer can fill the through-holes upon provision of pressure for fixing the unfixed image to the recording medium.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 13, 2010
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tsuneaki Kondoh, Junichiro Natori, Tomoaki Sugawara
  • Patent number: 7067592
    Abstract: A thermoplastic elastomer composition includes: a thermoplastic elastomer having a carbonyl-containing group and a nitrogen-containing heterocycle in a side chain thereof; and an amino group-containing compound. The thermoplastic elastomer composition retains excellent recycle property, and also has excellent mechanical characteristics and compression set (shape retention). Thus, it is of extremely superior industrial applicability and environmental protection effect.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: June 27, 2006
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Keisuke Chino, Junichiro Natori
  • Publication number: 20060060282
    Abstract: A tire wheel assembly having, attached to a tire/rim cavity, a run flat core member formed such that a high rigidity ring-shaped shell is supported at a rim with elastic rings, which are composed of a thermoplastic elastomer composition comprising a rubber composition (B) dispersed in a thermoplastic resin (A) or a hydrogen bondable thermoplastic elastomer comprising an elastomer polymer having a carbonitrile group-containing group and a heterocyclic amine-containing group at the side chain thereof and/or a composition of the thermoplastic elastomer, giving a tire wheel assembly of a run flat tire, in particular a tire wheel assembly capable of recycling the elastic rings for forming the core member.
    Type: Application
    Filed: April 28, 2004
    Publication date: March 23, 2006
    Inventors: Daisuke Kanenari, Tomohiko Kogure, Junichiro Natori
  • Patent number: 6746562
    Abstract: A thermo-reversible, crosslinkable elastomer, a composition containing the same, a rubber-bonded body and a rubber structure containing the rubber-bonded body are disclosed. The thermo-reversible, crosslinkable elastomer has an elastomer main-chain and a crosslinkable portion having at least one group selected from the group consisting of acid anhydride group and hydroxyl group. The thermo-reversible, crosslinkable elastomer can form stable crosslinked structure at room temperature, thereby having rubber plasticity, show sufficient melt flowability at molding temperature of general thermoplastic resin, and repeatedly reproduce crosslinking formation and crosslinking dissociation.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 8, 2004
    Assignee: The Yokohama Rubber Co., LTD
    Inventors: Keisuke Chino, Masahiro Ikawa, Junichiro Natori
  • Publication number: 20040106744
    Abstract: A thermoplastic elastomer composition includes: a thermoplastic elastomer having a carbonyl-containing group and a nitrogen-containing heterocycle in a side chain thereof; and an amino group-containing compound. The thermoplastic elastomer composition retains excellent recycle property, and also has excellent mechanical characteristics and compression set (shape retention). Thus, it is of extremely superior industrial applicability and environmental protection effect.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Keisuke Chino, Junichiro Natori
  • Publication number: 20040059060
    Abstract: A thermo-reversible, crosslinkable elastomer, a composition containing the same, a rubber-bonded body and a rubber structure containing the rubber-bonded body are disclosed. The thermo-reversible, crosslinkable elastomer has an elastomer main-chain and a crosslinkable portion having at least one group selected from the group consisting of acid anhydride group an hydroxyl group. The thermo-reversible, crosslinkable elastomer can form stable crosslinked structure at room temperature, thereby having rubber plasticity, show sufficient melt flowability at molding temperature of general thermoplastic resin, and repeatedly reproduce crosslinking formation and crosslinking dissociation.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 25, 2004
    Inventors: Keisuke Chino, Masahiro Ikawa, Junichiro Natori