Patents by Inventor Takashi Hiraoka
Takashi Hiraoka 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: 20110315925Abstract: The invention provides a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced between at least two of the characteristics. The liquid crystal composition has a nematic phase, and includes a specific optically active compound as a first component and may optionally include a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large positive dielectric anisotropy as a third component, and the liquid crystal display device contains this composition.Type: ApplicationFiled: March 2, 2010Publication date: December 29, 2011Applicants: CHISSO PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Takashi Hiraoka, Masayuki Saito, Kouki Sago
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Patent number: 8071182Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, a little light-leak and so forth.Type: GrantFiled: May 17, 2010Date of Patent: December 6, 2011Assignee: JNC CorporationInventors: Takayoshi Yanai, Takashi Hiraoka, Masayuki Saito
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Patent number: 8057867Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large elastic constant ratio, a small temperature dependence of the threshold voltage, a small frequency dependence of the dielectric anisotropy and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a STN device that has a short response time, a large contrast ratio, a low threshold voltage, a small electric power consumption, a steep voltage-transmission curve and a small light leak.Type: GrantFiled: August 24, 2010Date of Patent: November 15, 2011Assignees: JNC Corporation, Chisso Petrochemical CorporationInventors: Takayoshi Yanai, Takashi Hiraoka, Masayuki Saito
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Patent number: 7998656Abstract: The present invention provides a chemically amplified positive composition comprising: a resin comprising a structural unit represented by the formula (I): wherein R1 represents a hydrogen atom, a halogen atom, a C1-C4 alkyl group or a C1-C4 perfluoroalkyl group, Z represents a single bond or —(CH2)k—CO—X4—, k represents an integer of 1 to 4, X1, X2, X3 and X4 each independently represents an oxygen atom or a sulfur atom, m represents an integer of 1 to 3 and n represents an integer of 0 to 3, and an acid generator.Type: GrantFiled: August 5, 2009Date of Patent: August 16, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Masahiko Shimada, Kazuhiko Hashimoto, Satoshi Yamaguchi, Soon Shin Kim, Yoshiyuki Takata, Takashi Hiraoka
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Patent number: 7976913Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least the two characteristics. It is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: GrantFiled: April 14, 2010Date of Patent: July 12, 2011Assignees: JNC Corporation, CHISSO Petrochemical CorporationInventors: Takashi Hiraoka, Masayuki Saito
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Patent number: 7976912Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: GrantFiled: April 14, 2010Date of Patent: July 12, 2011Assignees: JNC Corporation, CHISSO Petrochemical CorporationInventors: Takashi Hiraoka, Masayuki Saito
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Publication number: 20110091808Abstract: The present invention provides a photoresist composition comprising a compound capable of generating an acid and a base by irradiation, a resin having an acid-labile group and being insoluble or poorly soluble in an aqueous alkali solution but becoming soluble in an aqueous alkali solution by the action of an acid, and an acid generator.Type: ApplicationFiled: October 14, 2010Publication date: April 21, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tatsuro MASUYAMA, Takashi HIRAOKA
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Publication number: 20110091820Abstract: A resist processing method has: (1) a step of applying a first resist composition comprising a resin (A) having an acid-labile group, being insoluble or poorly soluble in alkali aqueous solution, and being rendered soluble in alkali aqueous solution through an action of an acid, a photo acid generator (B) and a cross-linking agent (C) to obtain a first resist film; (2) a step of prebaking the first resist film; (3) a step of exposure processing the first resist film; (4) a step of post-exposure baking the first resist film; (5) a step of developing with a first alkali developer to obtain a first resist pattern; (6) a step of hard-baking by maintaining the first resist pattern at a temperature which is lower than a glass transition temperature of the above-mentioned first resist composition for a predetermined period of time, and then maintaining the first resist pattern at a temperature which is the glass transition temperature of the first resist composition or higher for a predetermined period of time; (7)Type: ApplicationFiled: June 10, 2009Publication date: April 21, 2011Inventors: Mitsuhiro Hata, Takashi Hiraoka, Junji Shigematsu
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Publication number: 20110077049Abstract: A mobile phone 100 with music reproduction function comprising a reproduction unit 106 that reproduces music data and a ring tone which are recorded in a music data recording medium 105 and a ring tone, a communication unit 108 that detects an incoming call from outside and a control unit 103 that instructs the reproduction unit 106 to perform a fade-out process of reproducing music data and to perform a fade-in process of outputting a ring tone when the communication unit 108 detects an incoming call while the reproduction unit 106 is reproducing music data.Type: ApplicationFiled: December 3, 2010Publication date: March 31, 2011Inventors: Kenji TAGAWA, Takashi Hiraoka
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Publication number: 20110065041Abstract: The present invention provides a photoresist composition comprising an acid generator and a resin comprising a structural unit derived from a monomer represented by the formula (I): wherein R1 represents a hydrogen atom etc., R2 represents a hydrogen atom or a C1-C4 alkyl group, A1 represents a single bond etc., and B1 represents a group represented by the formula (1a): wherein R3, R4 and R5 each independently represents a C1-C16 aliphatic hydrocarbon group and R4 and R5 can be bonded each other to form a C3-C18 ring together with the carbon atom to which R4 and R5 are bonded, a C4-C20 saturated cyclic group having a lactone structure or a C5-C20 saturated cyclic hydrocarbon group having at least one hydroxyl group.Type: ApplicationFiled: September 14, 2010Publication date: March 17, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Hiromu Sakamoto, Masako Sugihara, Takashi Hiraoka
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Publication number: 20110062384Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large elastic constant ratio, a small temperature dependence of the threshold voltage, a small frequency dependence of the dielectric anisotropy and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a STN device that has a short response time, a large contrast ratio, a low threshold voltage, a small electric power consumption, a steep voltage-transmission curve and a small light leak.Type: ApplicationFiled: August 24, 2010Publication date: March 17, 2011Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
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Patent number: 7869580Abstract: A mobile phone 100 with music reproduction function comprising a reproduction unit 106 that reproduces music data and a ring tone which are recorded in a music data recording medium 105 and a ring tone, a communication unit 108 that detects an incoming call from outside and a control unit 103 that instructs the reproduction unit 106 to perform a fade-out process of reproducing music data and to perform a fade-in process of outputting a ring tone when the communication unit 108 detects an incoming call while the reproduction unit 106 is reproducing music data.Type: GrantFiled: June 27, 2005Date of Patent: January 11, 2011Assignee: Panasonic CorporationInventors: Kenji Tagawa, Takashi Hiraoka
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Publication number: 20100330497Abstract: The present invention provides a resist composition giving a resist pattern excellent in CD uniformity and focus margin. A chemically amplified photoresist composition comprises a resin (A) and an acid generator (B), and the resin (A) contains, as a part or an entirety thereof, a copolymer (A1) which is obtained by polymerizing at least: a (meth) acrylic monomer (a1) having C5-20 alicyclic hydrocarbon group which becomes soluble in an aqueous alkali solution by the action of an acid; a (meth) acrylic monomer (a2) having a hydroxy group-containing adamantyl group; and a (meth) acrylic monomer (a3) having a lactone ring, and the copolymer (A1) has a weight-average molecular weight of 2500 or more and 5000 or less, and a content of the copolymer (A1) is not less than 50 parts by mass with respect to 100 parts by mass of the resin (A).Type: ApplicationFiled: June 23, 2010Publication date: December 30, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Takashi Hiraoka
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Publication number: 20100308266Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, a little light-leak and so forth.Type: ApplicationFiled: May 17, 2010Publication date: December 9, 2010Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
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Publication number: 20100272926Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: ApplicationFiled: April 14, 2010Publication date: October 28, 2010Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Takashi Hiraoka, Masayuki Saito
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Publication number: 20100272927Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least the two characteristics. It is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: ApplicationFiled: April 14, 2010Publication date: October 28, 2010Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: Takashi Hiraoka, Masayuki Saito
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Publication number: 20100035180Abstract: The present invention provides a chemically amplified positive composition comprising: a resin comprising a structural unit represented by the formula (I): wherein R1 represents a hydrogen atom, a halogen atom, a C1-C4 alkyl group or a C1-C4 perfluoroalkyl group, Z represents a single bond or —(CH2)k—CO—X4—, k represents an integer of 1 to 4, X1, X2, X3 and X4 each independently represents an oxygen atom or a sulfur atom, m represents an integer of 1 to 3 and n represents an integer of 0 to 3, and an acid generator.Type: ApplicationFiled: August 5, 2009Publication date: February 11, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masahiko Shimada, Kazuhiko Hashimoto, Satoshi Yamaguchi, Soon Shin Kim, Yoshiyuki Takata, Takashi Hiraoka
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Publication number: 20100028807Abstract: An imide compound represented by the formula (I): wherein R1 represents a C1-C20 aliphatic hydrocarbon group etc., W1 represents —CO—O— etc., Q1 and Q2 each independently represent a fluorine atom etc., and A represents a group represented by the formula (I-1): wherein A1 represents —CH2—CH2— etc., and a chemically amplified resist composition containing the same.Type: ApplicationFiled: July 21, 2009Publication date: February 4, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LTD.Inventors: Ichiki TAKEMOTO, Tatsuro MASUYAMA, Takashi HIRAOKA
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Publication number: 20100021847Abstract: An oxime compound represented by the formula (I): wherein Y represents an unsubstituted or substituted n-valent C6-C14 aromatic hydrocarbon group, n represents an integer of 1 to 6, R1) represents a C1-C30 aliphatic hydrocarbon group etc., R2 represents a linear or branched chain C1-C20 aliphatic hydrocarbon group etc., W represents —CO—O— etc., Q1 and Q2 each independently represent a fluorine atom etc., Z represents a C1-C20 halogenated aliphatic hydrocarbon group etc, and the resist composition containing the same.Type: ApplicationFiled: July 21, 2009Publication date: January 28, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LTD.Inventors: Tatsuro MASUYAMA, Kazuhiko HASHIMOTO, Takashi HIRAOKA, Ichiki TAKEMOTO
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Patent number: 7625610Abstract: A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) and (1-2), the second component is at least one compound selected from the group of compounds having a group represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formulas (3-1) and (3-2): wherein R1 and R4 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons, or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A is independently 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, or 2,5-pyrimidine; ring B, ring C, ring D and ring F are each independently 1,4-cyclohexylene or 1,4-phenylene; ring E is 1,4-cyclohexylene, 1,4-phenylene or 3-fluoro-1,4-phenylene; Z1 is a single boType: GrantFiled: October 5, 2007Date of Patent: December 1, 2009Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Masayuki Saito, Shuichi Goto, Takashi Hiraoka