Patents by Inventor Akihiro HONYA
Akihiro HONYA 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: 9465328Abstract: A transfer member having high durability while having an excellent transfer function is provided. An image formation apparatus in which high quality images can be obtained for an extended period of time is also provided. A transfer member having an endless belt shape and constituting an image formation apparatus of an electrophotographic system includes an elastic body layer and a surface layer formed thereon. The surface layer contains metal oxide fine particles subjected to a surface treatment, in a cured resin obtained by curing an active energy ray-curable composition that contains three ingredients of a multifunctional (meth)acrylate, a polyurethane acrylate and a polymerizable component having a low surface energy group.Type: GrantFiled: March 14, 2014Date of Patent: October 11, 2016Assignee: KONICA MINOLTA, INC.Inventors: Sadaaki Sakamoto, Akihiro Honya, Ryo Nakayama
-
Patent number: 9400457Abstract: An intermediate transfer element is included in an image formation apparatus, has a shape like an endless belt, and includes at least a resin base material layer and a surface layer. The surface layer is composed of a cured (meth)acrylic resin, the cured (meth)acrylic resin contains a constitutional unit derived from a polyfunctional (meth)acrylic monomer, the polyfunctional (meth)acrylic monomer contains n alkylene oxide structures and m (meth)acryloyl groups, with relation of n/m?5 and m?3 (n and m being a positive integer) being satisfied, and the alkylene oxide structure contains an alkylene group having a carbon number not smaller than 2.Type: GrantFiled: January 11, 2016Date of Patent: July 26, 2016Assignee: KONICA MINOLTA, INC.Inventors: Akihiro Honya, Shinichi Hamaguchi
-
Publication number: 20160209781Abstract: An intermediate transfer element is included in an image formation apparatus, has a shape like an endless belt, and includes at least a resin base material layer and a surface layer. The surface layer is composed of a cured (meth)acrylic resin, the cured (meth)acrylic resin contains a constitutional unit derived from a polyfunctional (meth)acrylic monomer, the polyfunctional (meth)acrylic monomer contains n alkylene oxide structures and m (meth)acryloyl groups, with relation of n/m?5 and m?3 (n and m being a positive integer) being satisfied, and the alkylene oxide structure contains an alkylene group having a carbon number not smaller than 2.Type: ApplicationFiled: January 11, 2016Publication date: July 21, 2016Inventors: Akihiro HONYA, Shinichi HAMAGUCHI
-
Publication number: 20150378282Abstract: Provided is a transfer member having high durability, and an image forming apparatus which enables stable forming of an image with high image quality for a long period of time. The transfer member is an endless belt shape transfer member for constituting an image forming apparatus of an electrophotographic type, in which a surface layer is formed on a base and the surface layer comprises a cured (meth)acrylic resin which is obtained by curing of polyfunctional (meth)acrylate according to a polymerization reaction using a photopolymerization initiator comprising of an acylphosphine oxide compound represented by the following General Formula (1): [in General Formula (1), n and m each represents an integer of 1 to 2 (with the proviso that, the relationship of m+n=3 is satisfied), and X1 and X2 each represents an alkyl group, a phenyl group which may have a substituent group, or an alkoxy group].Type: ApplicationFiled: June 29, 2015Publication date: December 31, 2015Inventors: Akihiro HONYA, Hidehito HARUKI
-
Publication number: 20150220026Abstract: An endless belt-shaped transfer member of an electrophotographic image forming apparatus includes an elastic body layer and a surface layer formed on the elastic body layer. The transfer member has (i) an indentation depth of 400 nm or more and 1,500 nm or less with a load of 100 ?N applied to a surface of the transfer member with a Berkovich indenter and (ii) a hardness of 40° or more and 85° or less on the surface of the transfer member measured with a micro-rubber hardness tester.Type: ApplicationFiled: February 2, 2015Publication date: August 6, 2015Inventors: Akihiro HONYA, Ryo NAKAYAMA, Sadaaki SAKAMOTO
-
Patent number: 8913942Abstract: A formation process of a glossy surface, without unevenness of gloss in a image on a print surface, nor toner offset or release failure over a long time period, is provided, where a surface of a belt member is composed of a resin containing structural units derived from a specific urethane (meth)acrylate (A), a specific polyfunctional monomer (B), and a fluorine-modified acrylate (C) and has the contact angle with respect to water of 85 to 110°, and the melting energy ?H of a wax in a clear toner is 2 to 20 J/g.Type: GrantFiled: August 20, 2013Date of Patent: December 16, 2014Assignee: Konica Minolta, Inc.Inventors: Go Yamaguchi, Akihiro Honya, Sadaaki Sakamoto
-
Patent number: 8862042Abstract: Disclosed is a glossing device with a cooling and separating belt which has a high wear resistance and is allowed to maintain the initial surface property over a long period of time. In the glossing device, the cooling and separating belt has a front surface formed of a cured resin containing a structural unit derived from urethane(meth)acrylate (A) having three or more (meth)acryloyloxy groups per molecule, a structural unit derived from a polyfunctional monomer (B) having three or more (meth)acryloyloxy groups per molecule and no urethane bond, and a structural unit derived from fluorine-modified acrylate (C). The cured resin contains 18 to 63% by mass of the structural unit derived from the urethane(meth)acrylate (A), 18 to 63% by mass of the structural unit derived from the polyfunctional monomer (B), and 10 to 40% by mass of the structural unit derived from the fluorine-modified acrylate (C).Type: GrantFiled: May 3, 2013Date of Patent: October 14, 2014Assignee: Konica Minolta, Inc.Inventors: Sadaaki Sakamoto, Go Yamaguchi, Akihiro Honya
-
Publication number: 20140286682Abstract: A transfer member having high durability while having an excellent transfer function is provided. An image formation apparatus in which high quality images can be obtained for an extended period of time is also provided. A transfer member having an endless belt shape and constituting an image formation apparatus of an electrophotographic system includes an elastic body layer and a surface layer formed thereon. The surface layer contains metal oxide fine particles subjected to a surface treatment, in a cured resin obtained by curing an active energy ray-curable composition that contains three ingredients of a multifunctional (meth)acrylate, a polyurethane acrylate and a polymerizable component having a low surface energy group.Type: ApplicationFiled: March 14, 2014Publication date: September 25, 2014Applicant: Konica Minolta, Inc.Inventors: Sadaaki SAKAMOTO, Akihiro Honya, Ryo Nakayama
-
Patent number: 8835010Abstract: Disclosed are a belt member having high wear resistance and thereby capable of maintaining its initial surface properties for a long period of time and a fixing device provided with, the belt member, and an image forming apparatus. The belt member has a belt shape, and its surface is formed of a cured resin including a structural unit derived from urethane (meth)acrylate (A) having at least three (meth)acryloyloxy groups per molecule, a structural unit derived from a polyfunctional monomer (B) having no urethane bond and having at least three (meth)acryloyloxy groups per molecule, and a structural unit derived from a fluorine-modified acrylate (C). The cured resin contains 18 to 63% by mass of the structural unit derived from the urethane(meth)acrylate (A), 18 to 63% by mass of the structural unit derived from the polyfunctional monomer (B), and 10 to 40% by mass of the structural unit derived from the fluorine-modified acrylate(C).Type: GrantFiled: December 6, 2012Date of Patent: September 16, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Sadaaki Sakamoto, Go Yamaguchi, Akihiro Honya
-
Publication number: 20140064809Abstract: A formation process of a glossy surface, without unevenness of gloss in a image on a print surface, nor toner offset or release failure over a long time period, is provided, where a surface of a belt member is composed of a resin containing structural units derived from a specific urethane (meth)acrylate (A), a specific polyfunctional monomer (B), and a fluorine-modified acrylate (C) and has the contact angle with respect to water of 85 to 110°, and the melting energy ?H of a wax in a clear toner is 2 to 20 J/g.Type: ApplicationFiled: August 20, 2013Publication date: March 6, 2014Applicant: Konica Minolta, Inc.Inventors: Go YAMAGUCHI, Akihiro HONYA, Sadaaki SAKAMOTO
-
Publication number: 20130330560Abstract: An intermediate transfer member includes a substrate and a surface layer. The surface layer may be formed by exposure of UV of a coating film containing a curable composition and a metal oxide fine particle. The curable composition includes a polyorganosiloxane multifunctional vinyl copolymer and multifunctional (meth)acrylate. The multifunctional vinyl copolymer has a weight-average molecular weight of 5,000 to 100,000. The metal oxide fine particles include a polyorganosiloxane surface layer. The intermediate transfer member enables suppression of filming and is insusceptible to abrasion and scratches even in long-term use, has small surface energy, and is favorable for use in an electrophotographic image forming apparatus.Type: ApplicationFiled: June 11, 2013Publication date: December 12, 2013Inventors: Akihiro HONYA, Sadaaki SAKAMOTO, Go YAMAGUCHI
-
Publication number: 20130302076Abstract: Disclosed is a glossing device with a cooling and separating belt which has a high wear resistance and is allowed to maintain the initial surface property over a long period of time. In the glossing device, the cooling and separating belt has a front surface formed of a cured resin containing a structural unit derived from urethane(meth)acrylate (A) having three or more(meth)acryloyloxy groups per molecule, a structural unit derived from a polyfunctional monomer (B) having three or more(meth)acryloyloxy groups per molecule and no urethane bond, and a structural unit derived from fluorine-modified acrylate (C). The cured resin contains 18 to 63% by mass of the structural unit derived from the urethane(meth)acrylate (A), 18 to 63% by mass of the structural unit derived from the polyfunctional monomer (B), and 10 to 40% by mass of the structural unit derived from the fluorine-modified acrylate (C).Type: ApplicationFiled: May 3, 2013Publication date: November 14, 2013Applicant: Konica Minolta, Inc.Inventors: Sadaaki SAKAMOTO, Go YAMAGUCHI, Akihiro HONYA
-
Publication number: 20130149541Abstract: Disclosed are a belt member having high wear resistance and thereby capable of maintaining its initial surface properties for a long period of time and a fixing device provided with, the belt member, and an image forming apparatus. The belt member has a belt shape, and its surface is formed of a cured resin including a structural unit derived from urethane (meth)acrylate (A) having at least three (meth)acryloyloxy groups per molecule, a structural unit derived from a polyfunctional monomer (B) having no urethane bond and having at least three (meth)acryloyloxy groups per molecule, and a structural unit derived from a fluorine-modified acrylate (C). The cured resin contains 18 to 63% by mass of the structural unit derived from the urethane(meth)acrylate (A), 18 to 63% by mass of the structural unit derived from the polyfunctional monomer (B), and 10 to 40% by mass of the structural unit derived from the fluorine-modified acrylate(C).Type: ApplicationFiled: December 6, 2012Publication date: June 13, 2013Inventors: Sadaaki SAKAMOTO, Go YAMAGUCHI, Akihiro HONYA
-
Publication number: 20120064350Abstract: An intermediate transfer belt for use in an image forming apparatus of an electro-photographing type, includes a substrate; and a surface-cured layer provided on the substrate; wherein the surface-cured layer contains a reaction product of at least an active energy ray curable monomer, reactive metal oxide particles, and a graft copolymer of a polymerizable fluorine resin and a polymerizable siloxane.Type: ApplicationFiled: August 30, 2011Publication date: March 15, 2012Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Akihiro HONYA, Toshio TOKUYASU, Junji UJIHARA, Tadaaki SUMITANI