Patents by Inventor Satoshi Murouchi
Satoshi Murouchi 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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Liquid crystal polyester amide, liquid crystal polyester amide resin composition, and molded article
Patent number: 9340647Abstract: A liquid crystal polyester amide of the present invention includes 10 mol % to 65 mol % of a structural unit represented by the following formula (1), 3 mol % to 17.5 mol % of a structural unit represented by the following formula (2), 5 mol % to 20 mol % of a structural unit represented by the following formula (3), 7.5 mol % to 42 mol % in total of at least one of a structural unit represented by the following formula (4-1) and a structural unit represented by the following formula (4-2), and 2.5 mol % to 40 mol % in total of at least one of a structural unit represented by the following formula (5-1) and a structural unit represented by the following formula (5-2), and has a melting point of 300° C. or higher.Type: GrantFiled: January 29, 2013Date of Patent: May 17, 2016Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Satoshi Murouchi, Kiichiro Nishimura, Masatoshi Ando -
Patent number: 9234092Abstract: A liquid-crystal polyester resin composition according to the present invention contains 100 parts by mass of a liquid-crystal polyester (A), 50 to 150 parts by mass of a titanium oxide (B) having been subjected to an aluminum oxide treatment, a silicon oxide treatment and an organosiloxane treatment as surface treatments, and 0 to 50 parts by mass of an inorganic fibrous filler (C).Type: GrantFiled: August 18, 2010Date of Patent: January 12, 2016Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Toshio Nakayama, Satoshi Murouchi, Miyuki Shiraishi
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Patent number: 8992805Abstract: A liquid crystal polyester resin composition of the present invention comprises: 100 parts by mass of a liquid crystal polyester; and 50 to 150 parts by mass of titanium oxide, wherein the liquid crystal polyester comprises 2 to 30 mole % of a repeating structural unit represented by the following formula (1), and 40 to 80 mole % of a repeating structural unit represented by the following formula (2).Type: GrantFiled: April 12, 2012Date of Patent: March 31, 2015Assignee: JX Nippon Oil & Energy CorporationInventors: Kiichiro Nishimura, Lu Shi, Satoshi Murouchi
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LIQUID CRYSTAL POLYESTER AMIDE, LIQUID CRYSTAL POLYESTER AMIDE RESIN COMPOSITION, AND MOLDED ARTICLE
Publication number: 20150010744Abstract: A liquid crystal polyester amide of the present invention includes 10 mol % to 65 mol % of a structural unit represented by the following formula (1), 3 mol % to 17.5 mol % of a structural unit represented by the following formula (2), 5 mol % to 20 mol % of a structural unit represented by the following formula (3), 7.5 mol % to 42 mol % in total of at least one of a structural unit represented by the following formula (4-1) and a structural unit represented by the following formula (4-2), and 2.5 mol % to 40 mol % in total of at least one of a structural unit represented by the following formula (5-1) and a structural unit represented by the following formula (5-2), and has a melting point of 300° C. or higher.Type: ApplicationFiled: January 29, 2013Publication date: January 8, 2015Inventors: Satoshi Murouchi, Kiichiro Nishimura, Masatoshi Ando -
Patent number: 8715526Abstract: The fully-aromatic thermotropic liquid crystal polyester resin composition of the present invention comprises 100 parts by mass of a fully-aromatic thermotropic liquid crystal polyester; and 50 to 150 parts by mass of titanium oxide, wherein the fully-aromatic thermotropic liquid crystal polyester comprises a repeating structural unit represented by the following formula (1), a repeating structural unit represented by the following formula (2), and a repeating structural unit represented by the following formula (3), and comprises 65 mole % to 78 mole % of the repeating structural unit represented by the formula (1). wherein X and Y each represent a divalent group having an aromatic ring.Type: GrantFiled: March 14, 2011Date of Patent: May 6, 2014Assignee: JX Nippon Oil & Energy CorporationInventors: Toru Kitai, Toshio Nakayama, Satoshi Murouchi
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Publication number: 20140110644Abstract: A liquid crystal polyester resin composition of the present invention comprises: 100 parts by mass of a liquid crystal polyester; and 50 to 150 parts by mass of titanium oxide, wherein the liquid crystal polyester comprises 2 to 30 mole % of a repeating structural unit represented by the following formula (1), and 40 to 80 mole % of a repeating structural unit represented by the following formula (2).Type: ApplicationFiled: April 12, 2012Publication date: April 24, 2014Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Kiichiro Nishimura, Lu Shi, Satoshi Murouchi
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Publication number: 20140088287Abstract: A method for producing a liquid crystal polyester according to the present invention is a method for producing a liquid crystal polyester, comprising subjecting a composition in which a dicarboxylic acid compound, a hydroxycarboxylic acid compound, and a dihydroxy compound are contained to melt polycondensation, and subjecting an obtained reaction product to solid phase polycondensation, wherein the composition contains, based on a total of the dicarboxylic acid compound, the hydroxycarboxylic acid compound, and the dihydroxy compound, 2 to 30 mole % of a dicarboxylic acid compound represented by the following formula (1), and 40 to 80 mole % of p-hydroxybenzoic acid, a polycondensation temperature of the above melt polycondensation is 315° C. or less, and a polycondensation temperature of the above solid phase polycondensation is 315° C. or less.Type: ApplicationFiled: April 12, 2012Publication date: March 27, 2014Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Kiichiro Nishimura, Lu Shi, Satoshi Murouchi
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Patent number: 8658057Abstract: A liquid crystal polyester resin composition for camera modules is used, the composition including, based on 100 parts by mass of the composition as a whole, (A) 49.5 to 69.5 parts by mass of a liquid crystal polyester, (B) 30.0 to 50.0 parts by mass of an irregular form or spherical powder having a Mohs hardness of 5 or higher and a primary particle diameter of 5 ?m or less, and (C) 0.5 to 5.0 parts by mass of carbon black. The use of the resin composition allows a reduction in the amount of dust generated (particles falling off) during the production of the camera, the use of the camera, and the operation of the camera modules. The resin composition has high surface hardness, is excellent in balance between heat resistance, stiffness, moldability, and resistance to falling of particles off a surface, and causes no malfunction during autofocus control.Type: GrantFiled: June 28, 2010Date of Patent: February 25, 2014Assignee: JX Nippon Oil & Energy CorporationInventors: Toshio Nakayama, Satoshi Murouchi
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Publication number: 20130056681Abstract: The fully-aromatic thermotropic liquid crystal polyester resin composition of the present invention comprises 100 parts by mass of a fully-aromatic thermotropic liquid crystal polyester; and 50 to 150 parts by mass of titanium oxide, wherein the fully-aromatic thermotropic liquid crystal polyester comprises a repeating structural unit represented by the following formula (1), a repeating structural unit represented by the following formula (2), and a repeating structural unit represented by the following formula (3), and comprises 65 mole % to 78 mole % of the repeating structural unit represented by the formula (1). wherein X and Y each represent a divalent group having an aromatic ring.Type: ApplicationFiled: March 14, 2011Publication date: March 7, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Toru Kitai, Toshio Nakayama, Satoshi Murouchi
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Publication number: 20120235089Abstract: A liquid crystal polyester resin composition for camera modules is used, the composition including, based on 100 parts by mass of the composition as a whole, (A) 49.5 to 69.5 parts by mass of a liquid crystal polyester, (B) 30.0 to 50.0 parts by mass of an irregular form or spherical powder having a Mohs hardness of 5 or higher and a primary particle diameter of 5 ?m or less, and (C) 0.5 to 5.0 parts by mass of carbon black. The use of the resin composition allows a reduction in the amount of dust generated (particles falling off) during the production of the camera, the use of the camera, and the operation of the camera modules. The resin composition has high surface hardness, is excellent in balance between heat resistance, stiffness, moldability, and resistance to falling of particles off a surface, and causes no malfunction during autofocus control.Type: ApplicationFiled: June 28, 2010Publication date: September 20, 2012Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Toshio Nakayama, Satoshi Murouchi
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Publication number: 20120235559Abstract: A liquid-crystal polyester resin composition according to the present invention contains 100 parts by mass of a liquid-crystal polyester (A), 50 to 150 parts by mass of a titanium oxide (B) having been subjected to an aluminum oxide treatment, a silicon oxide treatment and an organosiloxane treatment as surface treatments, and 0 to 50 parts by mass of an inorganic fibrous filler (C).Type: ApplicationFiled: August 18, 2010Publication date: September 20, 2012Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Toshio Nakayama, Satoshi Murouchi, Miyuki Shiraishi
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Patent number: 8192645Abstract: A resin composition for surface-mountable (SMT) camera modules which is excellent in the balance between heat resistance, rigidity, strength or moldability and surface exfoliation characteristics is provided by using a liquid-crystal polyester resin composition which comprises 100 parts by mass of a liquid-crystal polyester, 15 to 60 parts by mass of talc having a number-mean particle diameter of 10 to 50 ?m, 25 to 50 parts by mass of glass fiber having a number-mean fiber length of 100 to 200 ?m, 6 to 20 parts by mass of titanium oxide, and 2 to 10 parts by mass of carbon black and which exhibits a melt viscosity of 10 to 100 Pa S as determined at a shear rate of 100 sec?1 and 370° C. and a deflection temperature under load of 220° C. or above.Type: GrantFiled: March 24, 2009Date of Patent: June 5, 2012Assignee: JX Nippon Oil & Energy CorporationInventors: Satoshi Murouchi, Toshio Nakayama, Toru Kitai
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Patent number: 8142683Abstract: A liquid crystal polyester resin composition includes, based on 100 parts by mass of a liquid crystal polyester, 15 to 60 parts by mass of talc having a number average particle size of 10 to 50 ?m, 25 to 50 parts by mass of a glass fiber having a number average fiber length of 100 to 200 ?m and a number average fiber diameter of 4 to 8 ?m, and 2 to 10 parts by mass of carbon black, wherein a melt viscosity as determined at a shear rate of 100 sec?1 at 370° C. is 10 to 100 Pa·S and a deflection temperature under load is 220° C. or more. The liquid crystal polyester resin composition is used to provide a liquid crystal polyester resin composition for a camera module, having good heat resistance, rigidity, strength, and moldability, and also an excellent surface exfoliation property in a well balanced manner and being capable of being surface mounted (SMT).Type: GrantFiled: March 24, 2009Date of Patent: March 27, 2012Assignee: JX Nippon Oil & Energy CorporationInventors: Satoshi Murouchi, Toshio Nakayama, Toru Kitai
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Publication number: 20110114883Abstract: A liquid crystal polyester resin composition includes, based on 100 parts by mass of a liquid crystal polyester, 15 to 60 parts by mass of talc having a number average particle size of 10 to 50 ?m, 25 to 50 parts by mass of a glass fiber having a number average fiber length of 100 to 200 ?m and a number average fiber diameter of 4 to 8 ?m, and 2 to 10 parts by mass of carbon black, wherein a melt viscosity as determined at a shear rate of 100 sec?1 at 370° C. is 10 to 100 Pa·S and a deflection temperature under load is 220° C. or more. The liquid crystal polyester resin composition is used to provide a liquid crystal polyester resin composition for a camera module, having good heat resistance, rigidity, strength, and moldability, and also an excellent surface exfoliation property in a well balanced manner and being capable of being surface mounted (SMT).Type: ApplicationFiled: March 24, 2009Publication date: May 19, 2011Inventors: Satoshi Murouchi, Toshio Nakayama, Toru Kitai
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Publication number: 20110089371Abstract: A resin composition for surface-mountable (SMT) camera modules which is excellent in the balance between heat resistance, rigidity, strength or moldability and surface exfoliation characteristics is provided by using a liquid-crystal polyester resin composition which comprises 100 parts by mass of a liquid-crystal polyester, 15 to 60 parts by mass of talc having a number-mean particle diameter of 10 to 50 ?m, 25 to 50 parts by mass of glass fiber having a number-mean fiber length of 100 to 200 ?m, 6 to 20 parts by mass of titanium oxide, and 2 to 10 parts by mass of carbon black and which exhibits a melt viscosity of 10 to 100 Pa S as determined at a shear rate of 100 sec?1 and 370° C. and a deflection temperature under load of 220° C. or above.Type: ApplicationFiled: March 24, 2009Publication date: April 21, 2011Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Satoshi Murouchi, Toshio Nakayama, Toru Kitai
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Patent number: 7790786Abstract: An optical pickup lens holder which comprises a wholly aromatic liquid crystalline polyester resin composition comprising 97 to 45 mass percent of a wholly aromatic liquid crystalline polyester having a melting point of 320° C. or higher, 3 to 50 mass percent of an inorganic spherical hollow material having an aspect ratio of 2 or less and 0 to 30 mass percent of an inorganic filler having as aspect ratio of 4 or more, wherein the percentages are made to 100 mass percent in total, and having a specific gravity in the range of 1.00 to 1.35. The lens holder exhibits excellent characteristics, while retaining good heat resistance in soldering and good processability inherent in a liquid crystalline polyester, exhibits high injection processability and high adaptability to a soldering process even in a sheet form lens holder having a thin part and an opening port.Type: GrantFiled: April 19, 2005Date of Patent: September 7, 2010Assignee: Nippon Oil CorporationInventors: Satoshi Murouchi, Toshio Nakayama, Yoshikuni Yamada
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Patent number: 7790055Abstract: A wholly aromatic liquid crystal polyester resin composition for injection molding, formed by melt-kneading 100 parts by mass of a wholly aromatic liquid crystal polyester resin, and 5 to 20 parts by mass of glass fibers having a number average diameter of 5 to 20 ?m and an aspect ratio of 5 or more, the wholly aromatic liquid crystal polyester resin being formed by polycondensation of 60 to 70 mol % of p-hydroxybenzoic acid, 40 to 30 mol % of terephthalic acid and 4,4?-dihydroxydiphenyl combined, and 0 to 5 mol % of isophthalic acid and/or terephthalic acid (for all of these, derivatives thereof are included, and the total of these is 100 mol %). This composition has excellent damping properties, and is suitable for a molding material of an optical pickup lens holder for short type pickups for use in high-speed DVD systems and playback pickups for use in Blu-ray systems.Type: GrantFiled: June 28, 2007Date of Patent: September 7, 2010Assignee: Nippon Oil CorporationInventors: Satoshi Murouchi, Toshio Nakayama
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Patent number: 7737198Abstract: A molded product of a wholly aromatic liquid crystal polyester resin composition having a dielectric constant of 3.0 or less and a dielectric dissipation factor of 0.04 or less and is obtained by an injection molding of a composition comprising 90 to 45 percent by weight of the wholly aromatic liquid crystal polyester having a melting point of 320C or more, 10 to 40 percent by weight of an inorganic spherical hollow material having an aspect ratio of 2 or less, and 0 to 15 percent by weight of an inorganic filler having an aspect ratio of 4 or more. The molded product has dielectric properties suitable for information and telecommunications equipment, and is excellent in solder heat resistance, processability, and dimensional stability. The molded product is advantageous as a substrate material for use in information and telecommunications equipment such as a cellular mobile phone and as a fixing/holding member of a transmitter-receiver element.Type: GrantFiled: June 19, 2003Date of Patent: June 15, 2010Assignee: Nippon Oil CorporationInventors: Satoshi Murouchi, Toshio Nakayama, Yoshikuni Yamada
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Patent number: 7713439Abstract: Disclosed is a resin composition produced by melt-kneading a white pigment and a wholly aromatic thermotropic liquid crystal polyester. The resin composition can retain the excellent heat resistance and moldability of the wholly aromatic thermotropic liquid crystal polyester and have a satisfactory level of white light reflectance. The resin composition comprises 35 to 100 parts by weight of a white pigment particle and 100 parts by weight of a wholly aromatic thermotropic liquid crystal polyester, wherein the white pigment particle comprises 3 to 15 mass % of aluminum oxide and 97 to 85 mass % of a white pigment produced by a process including a roasting step and having a surface treated with the aluminum oxide (provided that the sum total of the white pigment and aluminum oxide is defined as 100 mass %). The resin composition can be produced by a process including a melt-kneading step.Type: GrantFiled: March 22, 2007Date of Patent: May 11, 2010Assignee: Nippon Oil CorporationInventors: Satoshi Murouchi, Toshio Nakayama
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Publication number: 20100065777Abstract: A wholly aromatic liquid crystal polyester resin composition for injection molding, formed by melt-kneading 100 parts by mass of a wholly aromatic liquid crystal polyester resin, and 5 to 20 parts by mass of glass fibers having a number average diameter of 5 to 20 ?m and an aspect ratio of 5 or more, the wholly aromatic liquid crystal polyester resin being formed by polycondensation of 60 to 70 mol % of p-hydroxybenzoic acid, 40 to 30 mol % of terephthalic acid and 4,4?-dihydroxydiphenyl combined, and 0 to 5 mol % of isophthalic acid and/or terephthalic acid (for all of these, derivatives thereof are included, and the total of these is 100 mol %). This composition has excellent damping properties, and is suitable for a molding material of an optical pickup lens holder for short type pickups for use in high-speed DVD systems and playback pickups for use in Blu-ray systems.Type: ApplicationFiled: June 28, 2007Publication date: March 18, 2010Inventors: Satoshi Murouchi, Toshio Nakayama