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).

  • Publication number: 20110315925
    Abstract: 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: Application
    Filed: March 2, 2010
    Publication date: December 29, 2011
    Applicants: CHISSO PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Takashi Hiraoka, Masayuki Saito, Kouki Sago
  • Patent number: 8071182
    Abstract: 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: Grant
    Filed: May 17, 2010
    Date of Patent: December 6, 2011
    Assignee: JNC Corporation
    Inventors: Takayoshi Yanai, Takashi Hiraoka, Masayuki Saito
  • Patent number: 8057867
    Abstract: 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: Grant
    Filed: August 24, 2010
    Date of Patent: November 15, 2011
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Takayoshi Yanai, Takashi Hiraoka, Masayuki Saito
  • Patent number: 7998656
    Abstract: 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: Grant
    Filed: August 5, 2009
    Date of Patent: August 16, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masahiko Shimada, Kazuhiko Hashimoto, Satoshi Yamaguchi, Soon Shin Kim, Yoshiyuki Takata, Takashi Hiraoka
  • Patent number: 7976913
    Abstract: 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: Grant
    Filed: April 14, 2010
    Date of Patent: July 12, 2011
    Assignees: JNC Corporation, CHISSO Petrochemical Corporation
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Patent number: 7976912
    Abstract: 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: Grant
    Filed: April 14, 2010
    Date of Patent: July 12, 2011
    Assignees: JNC Corporation, CHISSO Petrochemical Corporation
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Publication number: 20110091808
    Abstract: 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: Application
    Filed: October 14, 2010
    Publication date: April 21, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tatsuro MASUYAMA, Takashi HIRAOKA
  • Publication number: 20110091820
    Abstract: 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: Application
    Filed: June 10, 2009
    Publication date: April 21, 2011
    Inventors: Mitsuhiro Hata, Takashi Hiraoka, Junji Shigematsu
  • Publication number: 20110077049
    Abstract: 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: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Inventors: Kenji TAGAWA, Takashi Hiraoka
  • Publication number: 20110065041
    Abstract: 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: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Ichikawa, Hiromu Sakamoto, Masako Sugihara, Takashi Hiraoka
  • Publication number: 20110062384
    Abstract: 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: Application
    Filed: August 24, 2010
    Publication date: March 17, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
  • Patent number: 7869580
    Abstract: 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: Grant
    Filed: June 27, 2005
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Kenji Tagawa, Takashi Hiraoka
  • Publication number: 20100330497
    Abstract: 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: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Ichikawa, Takashi Hiraoka
  • Publication number: 20100308266
    Abstract: 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: Application
    Filed: May 17, 2010
    Publication date: December 9, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
  • Publication number: 20100272926
    Abstract: 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: Application
    Filed: April 14, 2010
    Publication date: October 28, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Publication number: 20100272927
    Abstract: 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: Application
    Filed: April 14, 2010
    Publication date: October 28, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Publication number: 20100035180
    Abstract: 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: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiko Shimada, Kazuhiko Hashimoto, Satoshi Yamaguchi, Soon Shin Kim, Yoshiyuki Takata, Takashi Hiraoka
  • Publication number: 20100028807
    Abstract: 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: Application
    Filed: July 21, 2009
    Publication date: February 4, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LTD.
    Inventors: Ichiki TAKEMOTO, Tatsuro MASUYAMA, Takashi HIRAOKA
  • Publication number: 20100021847
    Abstract: 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: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LTD.
    Inventors: Tatsuro MASUYAMA, Kazuhiko HASHIMOTO, Takashi HIRAOKA, Ichiki TAKEMOTO
  • Patent number: 7625610
    Abstract: 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 bo
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: December 1, 2009
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Masayuki Saito, Shuichi Goto, Takashi Hiraoka