Patents by Inventor Naoyuki Ochi
Naoyuki Ochi 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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Radiation curable resin, liquid crystal sealing material, and liquid crystal display cell using same
Patent number: 7824746Abstract: A liquid crystal sealing material comprising (a) a radiation curable resin represented by the general formula (1) below, (b) a photopolymerization initiator and (c) a filler having an average particle diameter of not more than 3 ?m. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 may be the same or different and represents a hydrogen atom, a halogen atom, a hydroxyl group, a monovalent linear, branched or cyclic alkyl group having 1-10 carbon atoms or an alkoxy group having 1-10 carbon atoms; m represents an integer of 1-4; R3 represents a hydrogen atom or a methyl group; R4 represents a linear, branched or cyclic alkyl group having 1-10 carbon atoms; 1 represents a range of positive numbers from 1 to 5; and the repeating unit number n represents a range of positive numbers from 0 to 20.Type: GrantFiled: October 12, 2005Date of Patent: November 2, 2010Assignee: Nippon Kayaku Kabushiki KaishaInventors: Masahiro Imaizumi, Yasumasa Akatuka, Naoyuki Ochi, Eiichi Nishihara, Masaru Kudou, Toyohumi Asano, Naoki Toneda, Masahiro Hirano -
Patent number: 7678433Abstract: An objective of this application is to provide a sealant for liquid crystals witch is extremely less apt to contaminate liquid crystals and has high adhesion strength. This application discloses a sealant for liquid crystals comprising as essential ingredients (a) a radiation-curable resin represented by the general formula (1): wherein R1 represents a hydrogen atom or a methyl group, R2 represents a hydrogen atom, a halogen atom, a hydroxyl group, a linear, branch or cyclic monovalent alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, m represents an integer of 1 to 4, and may be the same or different, R3 represents a hydrogen atom or a methyl group, and the number n of the repeating units is a positive number in the range of 0 to 20; (b) a photopolymerization initiator; and (c) an inorganic filler having an average particle diameter of 3 ?m or less.Type: GrantFiled: May 18, 2004Date of Patent: March 16, 2010Assignee: Nippon Kayaku Kabushiki KaishaInventors: Naoyuki Ochi, Toyofumi Asano, Masahiro Imaizumi, Masaru Kudo, Eiichi Nishihara, Hiroo Koyanagi, Sumio Ichimura, Masahiro Hirano
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Publication number: 20090275255Abstract: [Problems] To provide a liquid crystal sealing material having an extremely low possibility of contaminating liquid crystals and a high bond strength. [Means For Solving Problems] A liquid crystal sealing material comprising: (a) a resin obtained by (meth)acryloylating an epoxy resin (A) represented by formula (1); (b) a photopolymerization initiator; and (c) an inorganic filler having a mean particle diameter of 3 ?m or less, wherein a ratio of a p,p? isomer in a bisphenol F monomer unit constituting the epoxy resin (A) accounts for 40% or more, (wherein a repeating unit number z is in a range of 0 to 2).Type: ApplicationFiled: December 20, 2005Publication date: November 5, 2009Inventors: Masahiro Imaizumi, Masaru Kudou, Makoto Ohla, Naoyuki Ochi, Eiichi Nishihara, Toyohumi Asano, Masahiro Hirano
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Publication number: 20090188616Abstract: Disclosed is a sealing material for liquid crystals having high adhesion strength and excellent gap-forming power at bonding of panels. Also disclosed are a method for producing such a sealing material and a method for producing a liquid crystal display cell which is improved in productivity, high-speed response and reliability. The sealing material for liquid crystals is produced through a step wherein fine particles (D) having an average particle size of not more than 3 ?m are dispersed, using a wet dispersion unit (A), in a reactive resin (C) having an epoxy group and/or a (meth)acryloyl group which resin has been dissolved in a solvent (B) and a following step wherein the solvent (B) is removed.Type: ApplicationFiled: March 20, 2009Publication date: July 30, 2009Inventors: Masahiro Imaizumi, Naoyuki Ochi, Toyofumi Asano, Eiichi Nishihara, Masahiro Hirano, Takumi Kobayashi
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Patent number: 7521099Abstract: To provide a photopolymerization initiator having an extremely low possibility of contaminating liquid crystals, and a liquid crystal sealing material using such a photopolymerization initiator. A liquid crystal sealing material comprising (a) a reactive photopolymerization initiator represented by the general formula (1) and (b) a photocurable resin: (wherein R1 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; R2 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; Ar represents an arylene group; R3 represents a hydrogen atom or a methyl group; X and Y respectively represent O or S; and Z is a hydroxyl group or a morpholino group).Type: GrantFiled: August 31, 2005Date of Patent: April 21, 2009Assignee: Nippon Kayaku Kabushiki KaishaInventors: Naoyuki Ochi, Toyohumi Asano, Masahiro Imaizumi, Masaru Kudou, Eiichi Nishihara, Masahiro Hirano, Kouta Yoshii, Sumio Itimura, Makiko Kogo
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Patent number: 7521100Abstract: The present invention relates to a sealant for liquid crystals having extremely low contamination nature to a liquid crystal, excellent coatability and bondability to a substrate, long service life and pot life and high adhesive strength. A sealant for liquid crystals of the present invention is characterized by comprising (a) an epoxy resin represented by general formula (1): (wherein a represents an integer of 2 to 4; n represents 0 to 3 (average value); R represents a divalent hydrocarbon group of 2 to 6 carbon atoms; A represents a polyvalent aromatic group; and G represents a glycidyl group, provided that when n is 0, (a) an epoxy resin represented by general formula (1) is a bisphenol S-type.), (b) a thermo-curing agent, (c) and a filler having average particle diameter of not larger than 3 ?m.Type: GrantFiled: April 6, 2004Date of Patent: April 21, 2009Assignee: Nippon Kayaku Kabushiki KaishaInventors: Masahiro Imaizumi, Toyofumi Asano, Naoyuki Ochi, Masahiro Hirano, Sumio Ichimura, Masaru Kudo, Katsuhiko Oshimi, Masataka Nakanishi, Yasumasa Akatsuka, Eiichi Nishihara, Masayuki Itai
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Radiation Curable Resin, Liquid Crystal Sealing Material, and Liquid Crystal Display Cell Using Same
Publication number: 20080305707Abstract: [Problems] To provide a radiation curable resin having an extremely low possibility of contaminating liquid crystals, and a liquid crystal sealing material using such a photopolymerization initiator. [Means for Solving Problems] A liquid crystal sealing material characterized by comprising (a) a radiation curable resin represented by the general formula (1) below, (b) a photopolymerization initiator and (c) a filler having an average particle diameter of not more than 3 ?m.Type: ApplicationFiled: October 12, 2005Publication date: December 11, 2008Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Masahiro Imaizumi, Yasumasa Akatuka, Naoyuki Ochi, Eiichi Nishihara, Masaru Kudou, Toyohumi Asano, Naoki Toneda, Masahiro Hirano -
Publication number: 20080063816Abstract: Disclosed is a sealing material for liquid crystals having high adhesion strength and excellent gap-forming power at bonding of panels. Also disclosed are a method for producing such a sealing material and a method for producing a liquid crystal display cell which is improved in productivity, high-speed response and reliability. The sealing material for liquid crystals is produced through a step wherein fine particles (D) having an average particle size of not more than 3 ?m are dispersed, using a wet dispersion unit (A), in a reactive resin (C) having an epoxy group and/or a (meth)acryloyl group which resin has been dissolved in a solvent (B) and a following step wherein the solvent (B) is removed.Type: ApplicationFiled: March 11, 2005Publication date: March 13, 2008Inventors: Masahiro Imalzumi, Naoyuki Ochi, Toyofumi Asano, Eiichi Nishihara, Masahiro Hirano, Takumi Kobayashi
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Publication number: 20070258033Abstract: [PROBLEMS] To provide a photopolymerization initiator having an extremely low possibility of contaminating liquid crystals, and a liquid crystal sealing material using such a photopolymerization initiator. [MEANS FOR SOLVING PROBLEMS] A liquid crystal sealing material comprising (a) a reactive photopolymerization initiator represented by the general formula (1) and (b) a photocurable resin: (wherein R1 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; R2 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; Ar represents an arylene group; R3 represents a hydrogen atom or a methyl group; X and Y respectively represent O or S; and Z is a hydroxyl group or a morpholino group).Type: ApplicationFiled: August 31, 2005Publication date: November 8, 2007Inventors: Naoyuki Ochi, Toyohumi Asano, Masahiro Imaizumi, Masaru Kudou, Eiichi Nishihara, Masahiro Hirano, Kouta Yoshii, Sumio Itimura, Makiko Kogo
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Publication number: 20070020405Abstract: An objective of this application is to provide a sealant for liquid crystals witch is extremely less apt to contaminate liquid crystals and has high adhesion strength. This application discloses a sealant for liquid crystals comprising as essential ingredients (a) a radiation-curable resin represented by the general formula (1): wherein R1 represents a hydrogen atom or a methyl group, R2 represents a hydrogen atom, a halogen atom, a hydroxyl group, a linear, branch or cyclic monovalent alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, m represents an integer of 1 to 4, and may be the same or different, R3 represents a hydrogen atom or a methyl group, and the number n of the repeating units is a positive number in the range of 0 to 20; (b) a photopolymerization initiator; and (c) an inorganic filler having an average particle diameter of 3 ?m or less.Type: ApplicationFiled: May 18, 2004Publication date: January 25, 2007Inventors: Naoyuki Ochi, Toyofumi Asano, Masahiro Imaizumi, Masaru Kudo, Eiichi Nishihara, Hiroo Koyanagi, Sumio Ichimura, Masahiro Hirano
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Publication number: 20060208219Abstract: The present invention relates to a sealant for liquid crystals having extremely low contamination nature to a liquid crystal, excellent coatability and bondability to a substrate, long service life and pot life and high adhesive strength. A sealant for liquid crystals of the present invention is characterized by comprising (a) an epoxy resin represented by general formula (1): (wherein a represents an integer of 2 to 4; n represents 0 to 3 (average value); R represents a divalent hydrocarbon group of 2 to 6 carbon atoms; A represents a polyvalent aromatic group; and G represents a glycidyl group, provided that when n is 0, (a) an epoxy resin represented by general formula (1) is a bisphenol S-type.), (b) a thermo-curing agent, (c) and a filler having average particle diameter of not larger than 3 ?m.Type: ApplicationFiled: April 6, 2004Publication date: September 21, 2006Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Masahiro Imaizumi, Toyofumi Asano, Naoyuki Ochi, Masahiro Hirano, Sumio Ichimura, Masaru Kudo, Katsuhiro Oshimi, Masataka Nakanishi, Yasumasa Akatsuka, Eiichi Nishihara, Masayuki Itai
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Publication number: 20060004140Abstract: The objective of the present invention is to develop a sealing material for liquid crystals which hardly contaminates liquid crystals, shows excellent coating workability and bonding property when applied to a substrate, and has a long working time (pot life), a low-temperature curing property and an excellent adhesion strength. The sealing material for liquid crystals is characterized by comprising: (A) as a curing resin a mixture of (a) an epoxy group-containing curing resin and (b) a (meth)acryloyl group-containing curing resin, or (c) a curing resin containing an epoxy group and a (meth)acryloyl group; (B) a radical-forming photopolymerization initiator; (C) an isophthalic acid dihydrazide having an average particle diameter of 3 ?m or smaller; and (D) a filler having an average particle diameter of 3 ?m or smaller.Type: ApplicationFiled: November 5, 2003Publication date: January 5, 2006Inventors: Toyohumi Asano, Toshiya Sato, Masaru Kudou, Naoyuki Ochi, Masahiro Hirano
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Patent number: 6344790Abstract: Corrosion resistant material is used for lead wires of the thermistor, and an exposed portion of electrodes of the thermistor and a portion surrounding a weld portion of the lead wires are coated with corrosion resistant material. Since the lead wires themselves are made of corrosion resistant material, no corrosion occurs in the welding portion and a cut working portion. Further, the lead wires and the exposed portion of the electrodes are coated with corrosion resistant material. Thereby an electronic device having extremely high corrosion resistivity and hence high durability and reliability is produced, with the result that the electronic device can be used for a long period without corrosion under the heavily corrosive environment, such as sulfur dioxide gas atmosphere.Type: GrantFiled: August 11, 1997Date of Patent: February 5, 2002Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Naoyuki Ochi, Masahiro Hirama, Hiroshi Tomoto, Atsushi Miyazaki, Takayuki Saito, Kaoru Uchiyama