Patents by Inventor Naoyuki Satoyoshi
Naoyuki Satoyoshi 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: 9727004Abstract: A toner supply roller (1) is produced by preparing a rubber composition which contains a rubber component including an epichlorohydrin rubber and a butadiene rubber, a crosslinking component and a foaming component and, while extruding the rubber composition into a tubular body, continuously foaming and crosslinking the rubber composition of the tubular body by a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device. An image forming apparatus incorporates the toner supply roller (1).Type: GrantFiled: March 16, 2015Date of Patent: August 8, 2017Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke Tanio, Naoyuki Satoyoshi
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Patent number: 9583232Abstract: An electrically conductive rubber composition which can be efficiently and sufficiently foamed and crosslinked by means of a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device without generation of ammonia and carbon monoxide. The electrically conductive rubber composition comprises a rubber component, a crosslinking component for crosslinking the rubber component, and a foaming component including sodium hydrogen carbonate and citric acid.Type: GrantFiled: March 4, 2014Date of Patent: February 28, 2017Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke Tanio, Naoyuki Satoyoshi
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Publication number: 20170025197Abstract: An electrically conductive rubber composition is provided, which comprises a rubber component including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking component and an azodicarbonamide foaming agent having an average particle diameter of 3 to 11 ?m. The azodicarbonamide foaming agent is blended in a proportion of 0.5 to 8 parts by mass based on 100 parts by mass of the overall rubber component. A transfer roller (1) is produced by extruding the electrically conductive rubber composition into an elongated tubular body, and continuously feeding out the tubular body in the elongated state without cutting the tubular body to continuously pass the tubular body through a microwave crosslinking device and a hot air crosslinking device to continuously foam and crosslink the tubular body.Type: ApplicationFiled: October 7, 2016Publication date: January 26, 2017Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20170023875Abstract: A toner supply roller is provided which has the most uniform and greatest possible foam cell diameters and a lower hardness particularly even in a lower-temperature and lower-humidity environment as compared with the conventional art and is less liable to suffer from imaging failure such as uneven density and white streaks. An image forming apparatus employing the toner supply roller is also provided. The toner supply roller (1) is produced by preparing a rubber composition which contains a rubber component including an epichlorohydrin rubber and an acrylonitrile butadiene rubber, an electrically conductive carbon black, a crosslinking component and a foaming component and, while extruding the rubber composition into a tubular body, continuously foaming and crosslinking the rubber composition of the tubular body by a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device. The image forming apparatus incorporates the toner supply roller (1).Type: ApplicationFiled: January 28, 2015Publication date: January 26, 2017Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Patent number: 9454110Abstract: The transfer member according to the present invention is a transfer member employed for transferring toner in an image forming apparatus utilizing electrophotography, made of a rubber composition at least containing styrene-butadiene rubber, ethylene-propylene-diene rubber and epichlorohydrin rubber as rubber components.Type: GrantFiled: October 18, 2011Date of Patent: September 27, 2016Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yoshihisa Mizumoto, Naoyuki Satoyoshi, Kiyotaka Okuda, Masafumi Yamamoto
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Publication number: 20150277274Abstract: A toner supply roller (1) is produced by preparing a rubber composition which contains a rubber component including an epichlorohydrin rubber and a chloroprene rubber, an electrically conductive carbon black, a crosslinking component and a foaming component and, while extruding the rubber composition into a tubular body, continuously foaming and crosslinking the rubber composition of the tubular body by a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device. An image forming apparatus incorporates the toner supply roller (1).Type: ApplicationFiled: March 16, 2015Publication date: October 1, 2015Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20150277275Abstract: A toner supply roller (1) is produced by preparing a rubber composition which contains at least a rubber component including at least an epichlorohydrin rubber and a styrene butadiene rubber, a crosslinking component and a foaming component and, while extruding the rubber composition into a tubular body, continuously foaming and crosslinking the rubber composition of the tubular body by a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device.Type: ApplicationFiled: March 16, 2015Publication date: October 1, 2015Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20150277276Abstract: A toner supply roller (1) is produced by preparing a rubber composition which contains a rubber component including an epichlorohydrin rubber and a butadiene rubber, a crosslinking component and a foaming component and, while extruding the rubber composition into a tubular body, continuously foaming and crosslinking the rubber composition of the tubular body by a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device. An image forming apparatus incorporates the toner supply roller (1).Type: ApplicationFiled: March 16, 2015Publication date: October 1, 2015Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20150041725Abstract: An electrically conductive rubber composition is provided, which comprises a rubber component including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking component and an azodicarbonamide foaming agent having a volume-based median diameter of 20 to 40 ?m. The azodicarbonamide foaming agent is blended in a proportion of 0.5 to 8 parts by mass based on 100 parts by mass of the overall rubber component. A transfer roller (1) is produced by extruding the electrically conductive rubber composition into an elongated tubular body, and continuously feeding out the tubular body in the elongated state without cutting the tubular body to continuously pass the tubular body through a microwave crosslinking device and a hot air crosslinking device to continuously foam and crosslink the tubular body.Type: ApplicationFiled: July 22, 2014Publication date: February 12, 2015Inventors: Naoyuki SATOYOSHI, Yusuke TANIO
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Publication number: 20150034877Abstract: An electrically conductive rubber composition is provided, which comprises a rubber component including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking component and an azodicarbonamide foaming agent having an average particle diameter of 3 to 11 ?m. The azodicarbonamide foaming agent is blended in a proportion of 0.5 to 8 parts by mass based on 100 parts by mass of the overall rubber component. A transfer roller (1) is produced by extruding the electrically conductive rubber composition into an elongated tubular body, and continuously feeding out the tubular body in the elongated state without cutting the tubular body to continuously pass the tubular body through a microwave crosslinking device and a hot air crosslinking device to continuously foam and crosslink the tubular body.Type: ApplicationFiled: July 18, 2014Publication date: February 5, 2015Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20140287900Abstract: The present invention provides an electrically conductive rubber composition which can be efficiently and sufficiently foamed and crosslinked by means of a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device without generation of ammonia and carbon monoxide. The electrically conductive rubber composition comprises a rubber component, a crosslinking component for crosslinking the rubber component, and a foaming component including sodium hydrogen carbonate and citric acid.Type: ApplicationFiled: March 4, 2014Publication date: September 25, 2014Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yusuke TANIO, Naoyuki SATOYOSHI
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Publication number: 20120129667Abstract: The transfer member according to the present invention is a transfer member employed for transferring toner in an image forming apparatus utilizing electrophotography, made of a rubber composition at least containing styrene-butadiene rubber, ethylene-propylene-diene rubber and epichlorohydrin rubber as rubber components.Type: ApplicationFiled: October 18, 2011Publication date: May 24, 2012Inventors: Yoshihisa MIZUMOTO, Naoyuki SATOYOSHI, Kiyotaka OKUDA, Masafumi YAMAMOTO
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Publication number: 20110306481Abstract: The rubber composition according to the present invention is a rubber composition for forming the body of a paper feed roller, containing a rubber component, a crosslinking agent and a filler, wherein the rubber component is at least a single type selected from a group consisting of: (1) non-oil-extended ethylene propylene diene rubber having Mooney viscosity (at 100° C.) of 15 to 50; (2) a mixture of non-oil-extended ethylene propylene diene rubber having Mooney viscosity (at 100° C.) of 15 to 50 and oil of not more than 10 parts by mass with respect to 100 parts by mass of the non-oil-extended ethylene propylene diene rubber; (3) a mixture of non-oil-extended ethylene propylene diene rubber having Mooney viscosity (at 100° C.) of 15 to 50 and liquid ethylene propylene diene rubber; and (4) a mixture of non-oil-extended ethylene propylene diene rubber having Mooney viscosity (at 100° C.Type: ApplicationFiled: May 11, 2011Publication date: December 15, 2011Inventors: Akihiro Mine, Hirokazu Nishimori, Masahiro Yoshizato, Naoyuki Satoyoshi