Patents by Inventor Koji Ohguma
Koji Ohguma 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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Publication number: 20110189470Abstract: The curable resin composition of the present invention contains inorganic particles and a curable resin. The inorganic particles includes an inorganic particle (a-1) having a Mohs hardness of 7 or more and an average particle diameter of 1 ?m or less, an inorganic particle (a-2) having a Mohs hardness of 4 or more to less than 7 and an average particle diameter of 1 ?m or less, and an inorganic particle (a-3) having a Mohs hardness of less than 4 and an average particle diameter of 1 ?m or less. The curable resin is at least one selected from a group consisting of a thermosetting resin and an active energy ray-curable resin.Type: ApplicationFiled: October 20, 2010Publication date: August 4, 2011Applicant: CHISSO CORPORATIONInventors: Hiroyuki Iizuka, Kenya Ito, Koji Ohguma, Mikio Yamahiro
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Patent number: 7989560Abstract: A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable functional monomer containing a group having active hydrogen, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer containing a group having active hydrogen.Type: GrantFiled: December 17, 2007Date of Patent: August 2, 2011Assignee: Chisso CorporationInventors: Hisao Oikawa, Koji Ohguma, Kenya Ito, Mikio Yamahiro
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Patent number: 7868112Abstract: A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable monomer and has a group having a polymerizable unsaturated bond on a side chain, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer having a functional group capable of introducing a group having a polymerizable unsaturated bond.Type: GrantFiled: December 17, 2007Date of Patent: January 11, 2011Assignee: Chisso CorporationInventors: Hisao Oikawa, Koji Ohguma, Kenya Ito, Minoru Nakayama, Shin Koga, Mikio Yamahiro, Hiroyuki Sato
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Publication number: 20100137540Abstract: A polymer and a treating agent (such as a surface-treating agent) are provided that have excellent characteristics in such properties as water repellency, oil repellency, antifouling property and charge controlling property. The polymer contains a structural unit derived from fluorosilsesquioxane having an addition polymerizable group, or contains a structural unit derived from fluorosilsesquioxane having an addition polymerizable group and a structural unit derived from organopolysiloxane having an addition polymerizable group. The treating agent contains the polymer. An article treated with the treating agent is also provided.Type: ApplicationFiled: March 21, 2008Publication date: June 3, 2010Applicant: CHISSO CORPORATIONInventors: Kenya Ito, Hisao Oikawa, Koji Ohguma, Mikio Yamahiro
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Publication number: 20100093951Abstract: A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable functional monomer containing a group having active hydrogen, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer containing a group having active hydrogen.Type: ApplicationFiled: December 17, 2007Publication date: April 15, 2010Inventors: Hisao Oikawa, Koji Ohguma, Kenya Ito, Mikio Yamahiro
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Patent number: 7687593Abstract: Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and an addition polymerizable monomer (b); a coating film including the polymer or the copolymer; and an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and the addition polymerizable monomer (b).Type: GrantFiled: September 28, 2006Date of Patent: March 30, 2010Assignee: Chisso CorporationInventors: Mikio Yamahiro, Koji Ohguma, Hisao Oikawa, Hisanobu Minamizawa, Hiroyuki Sato, Kenichi Watanabe
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Publication number: 20100063222Abstract: A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable monomer and has a group having a polymerizable unsaturated bond on a side chain, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer having a functional group capable of introducing a group having a polymerizable unsaturated bond.Type: ApplicationFiled: December 17, 2007Publication date: March 11, 2010Applicant: Chisso CorporationInventors: Hisao Oikawa, Koji Ohguma, Kenya Ito, Minoru Nakayama, Shin Koga, Mikio Yamahiro, Hiroyuki Sato
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Patent number: 7449539Abstract: The present inventors have obtained a PSQ derivative of a completely condensed type into which a functional group is readily introduced by using a novel PSQ derivative of an incompletely condensed type in which four alkaline metal atoms are bonded to silsesquioxane of a cage type having eight Si's. The above silsesquioxane derivative is represented by Formula (1). A silsesquioxane derivative to which alkaline metal atoms are bonded is represented by Formula (2). In Formula (1) and Formula (2), R is a group selected from alkyl, aryl and arylalkyl; Y is a group represented by Formula (a) or Formula (b); and M is a monovalent alkaline metal atom. X in Formula (a) and Formula (b) is hydrogen, halogen, a hydroxyl group or a monovalent organic group, and Z is —O—, —CH2— or a single bond. The preferred organic group is a functional group or a group having a functional group.Type: GrantFiled: October 11, 2006Date of Patent: November 11, 2008Assignee: Chisso CorporationInventors: Yoshitaka Morimoto, Kenichi Watanabe, Nobumasa Ootake, Jyun-ichi Inagaki, Kazuhiro Yoshida, Koji Ohguma
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Patent number: 7375170Abstract: Since the majority of conventional organic/inorganic composite materials are obtained by mechanical blending of a silsesquioxane and an organic polymer or other means, it was extremely difficult to control the structure of the composite as a molecular agglomerate. In order to solve such a problem, the invention is to provide a silicon compound represented by Formula (1). This novel silicon compound has a living radical polymerization initiating ability for addition polymerizable monomers of a wide range.Type: GrantFiled: December 27, 2005Date of Patent: May 20, 2008Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Hisao Oikawa, Mikio Yamahiro, Koji Ohguma, Nobumasa Ootake, Kenichi Watanabe, Kohji Ohno, Yoshinobu Tsujii, Takeshi Fukuda
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Publication number: 20070135602Abstract: Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and an addition polymerizable monomer (b); a coating film including the polymer or the copolymer; and an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and the addition polymerizable monomer (b).Type: ApplicationFiled: September 28, 2006Publication date: June 14, 2007Inventors: Mikio Yamahiro, Koji Ohguma, Hisao Oikawa, Hisanobu Minamizawa, Hiroyuki Sato, Kenichi Watanabe
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Publication number: 20070032454Abstract: The present inventors have obtained a PSQ derivative of a completely condensed type into which a functional group is readily introduced by using a novel PSQ derivative of an incompletely condensed type in which four alkaline metal atoms are bonded to silsesquioxane of a cage type having eight Si's. The above silsesquioxane derivative is represented by Formula (1). A silsesquioxane derivative to which alkaline metal atoms are bonded is represented by Formula (2). In Formula (1) and Formula (2), R is a group selected from alkyl, aryl and arylalkyl; Y is a group represented by Formula (a) or Formula (b); and M is a monovalent alkaline metal atom. X in Formula (a) and Formula (b) is hydrogen, halogen, a hydroxyl group or a monovalent organic group, and Z is —O—, —CH2— or a single bond. The preferred organic group is a functional group or a group having a functional group.Type: ApplicationFiled: October 11, 2006Publication date: February 8, 2007Inventors: Yoshitaka Morimoto, Kenichi Watanabe, Nobumasa Ootake, Jyun-ichi Inagaki, Kazuhiro Yoshida, Koji Ohguma
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Patent number: 7169873Abstract: The present inventors have obtained a PSQ derivative of a completely condensed type into which a functional group is readily introduced by using a novel PSQ derivative of an incompletely condensed type in which four alkaline metal atoms are bonded to silsesquioxane of a cage type having eight Si's. The above silsesquioxane derivative is represented by Formula (1). A silsesquioxane derivative to which alkaline metal atoms are bonded is represented by Formula (2). In Formula (1) and Formula (2), R is a group selected from alkyl, aryl and arylalkyl; Y is a group represented by Formula (a) or Formula (b); and M is a monovalent alkaline metal atom. X in Formula (a) and Formula (b) is hydrogen, halogen, a hydroxyl group or a monovalent organic group, and Z is —O—, —CH2— or a single bond. The preferred organic group is a functional group or a group having a functional group.Type: GrantFiled: September 17, 2002Date of Patent: January 30, 2007Assignee: Chisso CorporationInventors: Yoshitaka Morimoto, Kenichi Watanabe, Nobumasa Ootake, Jyun-ichi Inagaki, Kazuhiro Yoshida, Koji Ohguma
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Publication number: 20060175684Abstract: Since the majority of conventional organic/inorganic composite materials are obtained by mechanical blending of a silsesquioxane and an organic polymer or other means, it was extremely difficult to control the structure of the composite as a molecular agglomerate. In order to solve such a problem, the invention is to provide a silicon compound represented by Formula (1). This novel silicon compound has a living radical polymerization initiating ability for addition polymerizable monomers of a wide range. In Formula (1), R1 is hydrogen, an alkyl, an aryl, or an arylalkyl; R2 is an alkyl, phenyl, or cyclohexyl; and A is a group having a polymerization initiating ability for addition polymerizable monomers.Type: ApplicationFiled: December 27, 2005Publication date: August 10, 2006Inventors: Hisao Oikawa, Mikio Yamahiro, Koji Ohguma, Nobumasa Ootake, Kenichi Watanabe, Kohji Ohno, Yoshinobu Tsujii, Takeshi Fukuda
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Publication number: 20040249103Abstract: The present inventors have obtained a PSQ derivative of a completely condensed type into which a functional group is readily introduced by using a novel PSQ derivative of an incompletely condensed type in which four alkaline metal atoms are bonded to silsesquioxane of a cage type having eight Si's. The above silsesquioxane derivative is represented by Formula (1). A silsesquioxane derivative to which alkaline metal atoms are bonded is represented by Formula (2). In Formula (1) and Formula (2), R is a group selected from alkyl, aryl and arylalkyl; Y is a group represented by Formula (a) or Formula (b); and M is a monovalent alkaline metal atom. X in Formula (a) and Formula (b) is hydrogen, halogen, a hydroxyl group or a monovalent organic group, and Z is —O—, —CH2— or a single bond. The preferred organic group is a functional group or a group having a functional group.Type: ApplicationFiled: April 30, 2004Publication date: December 9, 2004Inventors: Yoshitaka Morimoto, Kenichi Watanabe, Nobumasa Ootake, Jyun-ichi Inagaki, Kazuhiro Yoshida, Koji Ohguma
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Publication number: 20040068074Abstract: A conventional silsesquioxane derivative has the problems that the functional groups are restricted and the chemical structure is not readily controlled and that it is expensive. The present inventors have developed a process for producing a silsesquioxane derivative at a high yield by a simple process in order to solve such problems. The novel silsesquioxane derivative according to the present invention is controlled in a structure thereof and has a functional group, which is excellent in reactivity with a target compound, to be modified. The present invention relates to a production process for a silsesquioxane derivative represented by Formula (2), characterized by using a silicon compound represented by Formula (1).Type: ApplicationFiled: September 15, 2003Publication date: April 8, 2004Inventors: Kazuhiro Yoshida, Kenya Ito, Hisao Oikawa, Mikio Yamahiro, Yoshitaka Morimoto, Koji Ohguma, Kenichi Watanabe, Nobumasa Ootake