Patents by Inventor Susumu Takaba
Susumu Takaba 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: 11518125Abstract: A method for manufacturing a cogged V-belt having a plurality of cogs, includes: an unvulcanized sleeve formation step of forming an unvulcanized sleeve by laminating a plurality of unvulcanized rubber sheets that contain at least an unvulcanized rubber sheet for a compression rubber layer and an unvulcanized rubber sheet for a tension rubber layer; a vulcanized sleeve formation step of forming a vulcanized sleeve by vulcanizing the unvulcanized sleeve; and a cog formation step of forming the plurality of cogs on the compression rubber layer after the vulcanized sleeve forming step.Type: GrantFiled: August 25, 2017Date of Patent: December 6, 2022Assignee: Mitsuboshi Belting Ltd.Inventors: Yoshihiro Miura, Susumu Takaba
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Patent number: 11421752Abstract: A power transmission V-belt includes a tension member, an adhesion rubber layer in which at least part of the tension member is embedded, and a tension rubber layer and a compression rubber layer stacked via the adhesion rubber layer. A rubber hardness of the tension rubber layer is smaller than a rubber hardness of the compression rubber layer. In the adhesion rubber layer, a rubber hardness on a tension rubber layer side relative to the tension member is smaller than a rubber hardness on a compression rubber layer side.Type: GrantFiled: July 20, 2017Date of Patent: August 23, 2022Assignee: Mitsuboshi Belting Ltd.Inventors: Kazuhito Yanagihara, Tsuyoshi Nashiro, Susumu Takaba
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Publication number: 20210003195Abstract: A power transmission V-belt includes a tension member, an adhesion rubber layer in which at least part of the tension member is embedded, and a tension rubber layer and a compression rubber layer stacked via the adhesion rubber layer. A rubber hardness of the tension rubber layer is smaller than a rubber hardness of the compression rubber layer. In the adhesion rubber layer, a rubber hardness on a tension rubber layer side relative to the tension member is smaller than a rubber hardness on a compression rubber layer side.Type: ApplicationFiled: July 20, 2017Publication date: January 7, 2021Applicant: Mitsuboshi Belting Ltd.Inventors: Kazuhito Yanagihara, Tsuyoshi Nashiro, Susumu Takaba
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Patent number: 10641355Abstract: The present invention relates to a transmission belt containing a core wire extending in a lengthwise direction of the belt, an adhesive rubber layer in contact with at least a part of the core wire, a back surface rubber layer formed on one surface of the adhesive rubber layer, and an inner surface rubber layer formed on the other surface of the adhesive rubber layer and engaging or in contact with a pulley, in which the adhesive rubber layer is formed by a vulcanized rubber composition containing a rubber component, a fatty acid amide and a silica.Type: GrantFiled: April 22, 2013Date of Patent: May 5, 2020Assignee: Mitsuboshi Belting Ltd.Inventors: Takeshi Nishiyama, Susumu Takaba, Hisato Ishiguro
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Patent number: 10591020Abstract: The present invention relates to a power transmission belt provided with a tension member, a tension member-supporting layer, a tension rubber layer, and a compression rubber layer, the belt having a plurality of cog portions, in which the tension member is formed of an aramid fiber, the compression rubber layer is formed of a vulcanized rubber composition containing a rubber component and aramid short fibers embedded in the vulcanized rubber composition with being arranged in a width direction of the belt, the power transmission belt has a strain of from 0.5 to 0.8% when compressed under a stress of 2.0 N/mm2 in the width direction, and the power transmission belt has a strain of from 0.35 to 0.7% when pulled under a load of 2 kN in the lengthwise direction.Type: GrantFiled: March 27, 2014Date of Patent: March 17, 2020Assignee: Mitsuboshi Belting Ltd.Inventors: Mikio Kageyama, Susumu Takaba, Hisato Ishiguro, Hideyuki Matsumoto
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Publication number: 20190232587Abstract: The present invention pertains to a method for manufacturing a cogged V-belt having a plurality of cogs, the method containing: an unvulcanized sleeve formation step of forming an unvulcanized sleeve by laminating a plurality of unvulcanized rubber sheets that contain at least an unvulcanized rubber sheet for a compression rubber layer and an unvulcanized rubber sheet for a tension rubber layer; a vulcanized sleeve formation step of forming a vulcanized sleeve by vulcanizing the unvulcanized sleeve; and a cog formation step of forming the plurality of cogs on the compression rubber layer after the vulcanized sleeve forming step.Type: ApplicationFiled: August 25, 2017Publication date: August 1, 2019Applicant: Mitsuboshi Belting Ltd.Inventors: Yoshihiro Miura, Susumu Takaba
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Patent number: 9388879Abstract: A power transmission belt having a body with a length, an inside, an outside, laterally spaced sides, and a plurality of ribs extending lengthwise at one of the inside and outside of the body. The body has a rubber layer at the other of the inside and outside of the body in which non-straight, short fibers are embedded.Type: GrantFiled: December 22, 2005Date of Patent: July 12, 2016Assignee: Mitsuboshi Belting Ltd.Inventors: Susumu Takaba, Yorifumi Hineno
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Publication number: 20160040749Abstract: The present invention relates to a power transmission belt provided with a tension member, a tension member-supporting layer, a tension rubber layer, and a compression rubber layer, the belt having a plurality of cog portions, in which the tension member is formed of an aramid fiber, the compression rubber layer is formed of a vulcanized rubber composition containing a rubber component and aramid short fibers embedded in the vulcanized rubber composition with being arranged in a width direction of the belt, the power transmission belt has a strain of from 0.5 to 0.8% when compressed under a stress of 2.0 N/mm2 in the width direction, and the power transmission belt has a strain of from 0.35 to 0.7% when pulled under a load of 2 kN in the lengthwise direction.Type: ApplicationFiled: March 27, 2014Publication date: February 11, 2016Applicant: MITSUBOSHI BELTING LTD.Inventors: Mikio Kageyama, Susumu Takaba, Hisato Ishiguro, Hideyuki Matsumoto
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Publication number: 20150111677Abstract: The present invention relates to a transmission belt containing a core wire extending in a lengthwise direction of the belt, an adhesive rubber layer in contact with at least a part of the core wire, a back surface rubber layer formed on one surface of the adhesive rubber layer, and an inner surface rubber layer formed on the other surface of the adhesive rubber layer and engaging or in contact with a pulley, in which the adhesive rubber layer is formed by a vulcanized rubber composition containing a rubber component, a fatty acid amide and a silica.Type: ApplicationFiled: April 22, 2013Publication date: April 23, 2015Inventors: Takeshi Nishiyama, Susumu Takaba, Hisato Ishiguro
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Patent number: 7781528Abstract: A power transmission belt having a body with a length, an inside, an outside, and laterally spaced side surfaces. The body has a first rubber composition that includes an organic peroxide used as a cross-linking agent and N,N?-m-phenylenedimaleimide and/or quinone dioxime in an amount of 0.5 to 13 parts by weight per 100 parts by weight of rubber components. The rubber components include (a) ethylene-vinyl ester copolymer and/or an ethylene-?,?-unsaturated carboxylate copolymer, and (b) an ethylene ?-olefin rubber in a ratio of from 5:95 to 100:0 by weight.Type: GrantFiled: October 28, 2004Date of Patent: August 24, 2010Assignee: Mitsuboshi Belting Ltd.Inventors: Tsuyoshi Takehara, Nozomu Shigemitsu, Susumu Takaba, Toshimichi Takada
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Publication number: 20060154770Abstract: A power transmission belt having a body with a length, an inside, an outside, laterally spaced sides, and a plurality of ribs extending lengthwise at one of the inside and outside of the body. The body has a rubber layer at the other of the inside and outside of the body in which non-straight, short fibers are embedded.Type: ApplicationFiled: December 22, 2005Publication date: July 13, 2006Inventors: Susumu Takaba, Yorifumi Hineno
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Publication number: 20050096433Abstract: A power transmission belt having a body with a length, an inside, an outside, and laterally spaced side surfaces. The body has a first rubber composition that includes an organic peroxide used as a cross-linking agent and N,N?-m-phenylenedimaleimide and/or quinone dioxime in an amount of 0.5 to 13 parts by weight per 100 parts by weight of rubber components. The rubber components include (a) ethylene-vinyl ester copolymer and/or an ethylene-?,?-unsaturated carboxylate copolymer, and (b) an ethylene ?-olefin rubber in a ratio of from 5:95 to 100:0 by weight.Type: ApplicationFiled: October 28, 2004Publication date: May 5, 2005Inventors: Tsuyoshi Takehara, Nozomu Shigemitsu, Susumu Takaba, Toshimichi Takada