Patents by Inventor Chie UMEHARA
Chie UMEHARA 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).
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Patent number: 10196777Abstract: A shoe press belt with excellent mechanical properties, in particular excellent wear resistance is provided, and a method of manufacturing the shoe press belt for use in a papermaking machine is also provided. The belt is constituted by a resin layer and includes an outer circumferential layer surface contacting a felt. The outer circumferential layer surface is formed with a surface-treated layer, in which part of the resin layer is modified by coating a composition including an isocyanate compound onto a semi-finished outer circumferential layer and by performing a curing treatment.Type: GrantFiled: January 7, 2016Date of Patent: February 5, 2019Assignee: ICHIKAWA CO., LTD.Inventors: Chie Umehara, Shintaro Yamazaki, Yuya Takamori
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Patent number: 10036120Abstract: There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).Type: GrantFiled: January 25, 2017Date of Patent: July 31, 2018Assignee: Ichikawa Co., Ltd.Inventors: Yuya Takamori, Nobuharu Suzuki, Mitsuyoshi Matsuno, Chie Umehara, Yuji Mizoguchi, Taichi Sakai
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Patent number: 9777433Abstract: A shoe press belt with excellent mechanical properties, in particular a shoe press belt with excellent crack resistance and excellent resistance to land edge deficiency. The shoe press belt includes a felt-side resin layer containing a resin formed by curing a prepolymer having a terminal isocyanate group (—NCO) with a curing agent, wherein the prepolymer contains, in reacted form, a compound comprising 1,4-bis(isocyanate methyl) cyclohexane and a polycarbonate diol, and wherein the felt-side resin layer has grooves that are configured to receive water squeezed from a felt.Type: GrantFiled: June 1, 2016Date of Patent: October 3, 2017Assignee: Ichikawa Co., Ltd.Inventors: Yuya Takamori, Nobuharu Suzuki, Mitsuyoshi Matsuno, Chie Umehara, Taichi Sakai
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Patent number: 9732470Abstract: The purpose of the present invention is to provide a shoe press belt which exhibits improvement in mechanical characteristics such as crack resistance, wear resistance, delamination resistance and bending fatigue resistance, particularly in the surface wear resistance of the shoe press belt and the crack resistance of the bottom regions of water receiving parts. A shoe press belt which is produced by integrating a reinforcing substrate with a polyurethane layer including at least a felt-side layer and in which water-receiving parts are formed in the felt-side layer, wherein the polyurethane equivalent value of the second resin layer including the bottom regions of the water-receiving parts is adjusted so as to be larger than that of the first resin layer including a surface which is to be brought into contact with a felt.Type: GrantFiled: June 13, 2014Date of Patent: August 15, 2017Assignee: ICHIKAWA CO., LTD.Inventors: Shintaro Yamazaki, Yuya Takamori, Chie Umehara, Mitsuyoshi Matsuno, Nobuharu Suzuki
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Publication number: 20170218568Abstract: There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Applicant: Ichikawa Co., Ltd.Inventors: Yuya TAKAMORI, Nobuharu SUZUKI, Mitsuyoshi MATSUNO, Chie UMEHARA, Yuji MIZOGUCHI, Taichi SAKAI
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Publication number: 20160355978Abstract: The object of the present invention is to provide a shoe press belt with excellent mechanical properties, in particular a shoe press belt with excellent crack resistance and excellent resistance to land edge deficiency. This is achieved by shoe press belt 1 for use in a papermaking machine, wherein it comprises a felt-side resin layer which is constituted by a resin layer and in which grooves for receiving water squeezed from a felt are formed, and wherein the felt-side resin layer is formed by curing a compound comprising 1,4-bis(isocyanate methyl) cyclohexane.Type: ApplicationFiled: June 1, 2016Publication date: December 8, 2016Applicant: Ichikawa Co., Ltd.Inventors: Yuya TAKAMORI, Nobuharu SUZUKI, Mitsuyoshi MATSUNO, Chie UMEHARA, Taichi SAKAI
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Publication number: 20160208437Abstract: The object is to provide a shoe press belt with excellent mechanical properties, in particular excellent wear resistance, and to provide a method of manufacturing said shoe press belt. The shoe press belt 1 is a shoe press belt 1 for use in a papermaking machine, wherein it is constituted by a resin layer 22 and it comprises an outer circumferential layer surface 222 contacting a felt, and wherein the outer circumferential layer surface 222 is formed with a surface-treated layer 24, in which part of the resin layer 22 is modified by coating a composition 25 comprising an isocyanate compound onto a semi-finished outer circumferential layer 221 and by performing a curing treatment.Type: ApplicationFiled: January 7, 2016Publication date: July 21, 2016Applicant: Ichikawa Co., Ltd.Inventors: Chie UMEHARA, Shintaro YAMAZAKI, Yuya TAKAMORI
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Publication number: 20160130755Abstract: The purpose of the present invention is to provide a shoe press belt which exhibits improvement in mechanical characteristics such as crack resistance, wear resistance, delamination resistance and bending fatigue resistance, particularly in the surface wear resistance of the shoe press belt and the crack resistance of the bottom regions of water receiving parts. A shoe press belt which is produced by integrating a reinforcing substrate with a polyurethane layer including at least a felt-side layer and in which water-receiving parts are formed in the felt-side layer, wherein the polyurethane equivalent value of the second resin layer including the bottom regions of the water-receiving parts is adjusted so as to be larger than that of the first resin layer including a surface which is to be brought into contact with a felt.Type: ApplicationFiled: June 13, 2014Publication date: May 12, 2016Applicant: ICHIKAWA CO., LTD.Inventors: Shintaro YAMAZAKI, Yuya TAKAMORI, Chie UMEHARA, Mitsuyoshi MATSUNO, Nobuharu SUZUKI