Patents by Inventor Takuji Ishikawa

Takuji Ishikawa 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).

  • Patent number: 11967160
    Abstract: Conventionally, a method in which pieces of point group information for use in position matching between a white line position detected by an object detection sensor and a white line position on a map are extracted from the white line positions according to a travel environment, has not been taken into account. In the present disclosure, a point group extraction condition is changed according to change in the travel environment so that: a process of position matching that exhibits robustness with respect to change in the travel environment can be realized; and an own position and a white line position existing at a long distance from an own vehicle can be detected with high accuracy.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: April 23, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takefumi Hasegawa, Tadahiko Urano, Takuji Morimoto, Kyosuke Konishi, Kentaro Ishikawa, Taku Umeda
  • Publication number: 20230248388
    Abstract: A vibrating needle device of the invention includes a needle including a main body portion extending in a direction of a first axis and having a groove formed in an outer circumferential surface over an entire circumference in a circumferential direction around the first axis. A tip portion is provided at one end of the main body portion and tapered in a direction away from the main body portion in the direction of the first axis. A vibrating unit is configured to vibrate the needle along the direction of the first axis and a direction of a second axis that intersects with the direction of the first axis.
    Type: Application
    Filed: June 11, 2021
    Publication date: August 10, 2023
    Inventors: Kenji KIKUCHI, Kojiro SUGIYAMA, Takuji ISHIKAWA, Kei TAKASE
  • Publication number: 20220153890
    Abstract: A fluorine-containing polymer for a metal-clad laminated sheet, containing: a polymerized unit based on a fluorine-containing vinyl monomer; and a polymerized unit based on a vinyl ester monomer other than the fluorine-containing vinyl monomer. The fluorine-containing polymer contains not more than 1 mol % in total of a polymerized unit based on a monomer containing a hydroxy group and a polymerized unit based on a monomer containing a carboxy group, of all polymerized units. Also disclosed is a composition containing the fluorine-containing polymer, a curable composition containing the fluorine-containing polymer and an epoxy resin, a metal-clad laminated sheet including a metal foil and a resin layer provided on the metal foil and being formed of the curable composition, and a printed substrate including a patterned circuit formed by etching the metal foil of the metal-clad laminated sheet.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuji ISHIKAWA, Hidenori OZAKI, Katsuhiko IMOTO
  • Publication number: 20210070973
    Abstract: An aqueous dispersion containing a particulate resin composite that contains a fluorine-containing resin and an inorganic polymer. The fluorine-containing resin contains a hydrolyzable silyl group-containing unsaturated monomer unit.
    Type: Application
    Filed: March 27, 2019
    Publication date: March 11, 2021
    Applicant: DAI KIN INDUSTRIES, LTD.
    Inventors: Takuji ISHIKAWA, Hidenori OZAKI, Katsuhiko IMOTO, Yoshinari FUKUHARA
  • Patent number: 10787587
    Abstract: Provided is an aqueous dispersion capable of providing a coating film excellent in solvent resistance, stain resistance, and adhesion to a base material. The invention relates to an aqueous dispersion including a particulate polymer composite; a polyisocyanate compound; and water. The particulate polymer composite includes a fluoropolymer (A) and an acrylic polymer (B). Either or both of the fluoropolymer (A) and the acrylic polymer (B) contain a hydroxyl group and a hydrolyzable silyl group.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 29, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuji Ishikawa, Akira Chida, Katsuhiko Imoto
  • Publication number: 20180118969
    Abstract: Provided is an aqueous dispersion capable of providing a coating film excellent in solvent resistance, stain resistance, and adhesion to a base material. The invention relates to an aqueous dispersion including a particulate polymer composite; a polyisocyanate compound; and water. The particulate polymer composite includes a fluoropolymer (A) and an acrylic polymer (B). Either or both of the fluoropolymer (A) and the acrylic polymer (B) contain a hydroxyl group and a hydrolyzable silyl group.
    Type: Application
    Filed: April 21, 2016
    Publication date: May 3, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuji ISHIKAWA, Akira CHIDA, Katsuhiko IMOTO
  • Publication number: 20170056924
    Abstract: In order to reduce manufacturing cost and required energy largely and to improve weather resistance, a heat-shielding property, hydrophilicity, a nonflammable property, chemical resistance, flexibility, a handling property, and a surface printing excellent characteristic, in a nonflammable sheet, a resin layer including a first fluorocarbon resin containing a vinylidene fluoride copolymer, an acrylic copolymer, and titanium oxide, and a second fluorocarbon resin containing a vinylidene fluoride polymer, a siloxane polymer, and a crosslinked acrylic polymer is formed on a surface of a woven fabric formed of a nonflammable fiber.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Applicants: TOPPAN PRINTING CO., LTD., DAIKIN INDUSTRIES, LTD.
    Inventors: Satoshi TAKENAKA, Takuji ISHIKAWA, Masami KATOU, Shouichi YAGI, Katsuhiko IMOTO
  • Patent number: 9444103
    Abstract: The present invention aims to provide an electrode mixture which shows little change in viscosity even after 24 hours from the preparation of the mixture and enables production of an electrode having a high electrode density and excellent flexibility and is capable of giving excellent electric properties to the resulting cell. The present invention relates to an electrode mixture including a powdery electrode material; a binder; and an organic solvent, the binder including polyvinylidene fluoride and a fluorine-containing polymer including a polymer unit based on vinylidene fluoride and a polymer unit based on tetrafluoroethylene, the fluorine-containing polymer including the polymer unit based on vinylidene fluoride in an amount of 80.0 to 90.0 mol % based on all the polymer units, the polyvinylidene fluoride having a number average molecular weight of 150,000 to 1,400,000.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: September 13, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshiki Ichisaka, Takashi Iguchi, Tomoyuki Fukatani, Kazunobu Uchida, Takuji Ishikawa, Norimasa Uesugi, Takahiro Kitahara
  • Patent number: 9444104
    Abstract: The present invention aims to provide an electrode mixture which shows little change in viscosity even after 24 hours from the preparation of the mixture and enables production of an electrode having a high electrode density and excellent flexibility and is capable of giving excellent electric properties to the resulting cell. The present invention relates to an electrode mixture including a powdery electrode material; a binder; and an organic solvent, the binder including a fluorine-containing polymer including a polymer unit based on vinylidene fluoride and a polymer unit based on tetrafluoroethylene, the fluorine-containing polymer including the polymer unit based on vinylidene fluoride in an amount of 80.0 to 89.0 mol % based on all the polymer units, and the organic solvent being N-methyl-2-pyrolidone and/or N,N-dimethylacetamide.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: September 13, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshiki Ichisaka, Takashi Iguchi, Tomoyuki Fukatani, Kazunobu Uchida, Takuji Ishikawa, Norimasa Uesugi, Takahiro Kitahara
  • Patent number: 9343744
    Abstract: A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR? (R and R? are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR?— (R? represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 17, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Iguchi, Takahiro Kitahara, Takuji Ishikawa, Toshiki Ichisaka, Kazunobu Uchida, Tomoyuki Fukatani, Manabu Fujisawa, Kenji Ichikawa
  • Publication number: 20150368413
    Abstract: The present invention aims to provide a film having a high dielectric constant and a low dissipation factor. The high dielectric film of the present invention includes a vinylidene fluoride/tetrafluoroethylene copolymer (A) with a mole ratio (vinylidene fluoride)/(tetrafluoroethylene) of 95/5 to 80/20. The film includes an ?-crystal structure and a ?-crystal structure. The ratio of the ?-crystal structure is 50% or more.
    Type: Application
    Filed: October 16, 2013
    Publication date: December 24, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mayuko TATEMICHI, Miharu OTA, Kouji YOKOTANI, Nobuyuki KOMATSU, Hisako NAKAMURA, Fumiko SHIGENAI, Takeshi HAZAMA, Masakazu KINOSHITA, Meiten KOH, Takuji ISHIKAWA, Takashi IGUCHI, Kazunobu UCHIDA, Tomoyuki FUKATANI, Takahiro KITAHARA, Tetsuhiro KODANI
  • Patent number: 9109095
    Abstract: The present invention provides an organosol composition that is stable even in the case that the PTFE particle content is high. The present invention relates to an organosol composition of PTFE particles, comprising PTFE particles (A), a polymer (B), and an organic solvent (S), wherein (1) the polymer (B) is soluble in the organic solvent (S), (2) the amount of the PTFE particles (A) is not lower than 50% by mass of the total amount of the PTFE particles (A) and the polymer (B), and (3) the precipitation ratio of the PTFE particles after 48 hours is not higher than 60% when the total solids concentration of the PTFE particles (A) and the polymer (B) is 5% by mass.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: August 18, 2015
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuji Ishikawa, Atsuko Tanaka, Taku Yamanaka, Nobuhiko Tsuda, Kazunobu Uchida, Takahiro Kitahara, Tomoyuki Fukatani
  • Publication number: 20150137029
    Abstract: The present invention aims to provide an electrode mixture which shows little change in viscosity even after 24 hours from the preparation of the mixture and enables production of an electrode having a high electrode density and excellent flexibility and is capable of giving excellent electric properties to the resulting cell. The present invention relates to an electrode mixture including a powdery electrode material; a binder; and an organic solvent, the binder including a fluorine-containing polymer including a polymer unit based on vinylidene fluoride and a polymer unit based on tetrafluoroethylene, the fluorine-containing polymer including the polymer unit based on vinylidene fluoride in an amount of 80.0 to 89.0 mol % based on all the polymer units, and the organic solvent being N-methyl-2-pyrolidone and/or N,N-dimethylacetamide.
    Type: Application
    Filed: May 20, 2013
    Publication date: May 21, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshiki Ichisaka, Takashi Iguchi, Tomoyuki Fukatani, Kazunobu Uchida, Takuji Ishikawa, Norimasa Uesugi, Takahiro Kitahara
  • Publication number: 20150137028
    Abstract: The present invention aims to provide an electrode mixture which shows little change in viscosity even after 24 hours from the preparation of the mixture and enables production of an electrode having a high electrode density and excellent flexibility and is capable of giving excellent electric properties to the resulting cell. The present invention relates to an electrode mixture including a powdery electrode material; a binder; and an organic solvent, the binder including polyvinylidene fluoride and a fluorine-containing polymer including a polymer unit based on vinylidene fluoride and a polymer unit based on tetrafluoroethylene, the fluorine-containing polymer including the polymer unit based on vinylidene fluoride in an amount of 80.0 to 90.0 mol % based on all the polymer units, the polyvinylidene fluoride having a number average molecular weight of 150,000 to 1,400,000.
    Type: Application
    Filed: May 20, 2013
    Publication date: May 21, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshiki Ichisaka, Takashi Iguchi, Tomoyuki Fukatani, Kazunobu Uchida, Takuji Ishikawa, Norimasa Uesugi, Takahiro Kitahara
  • Publication number: 20150017532
    Abstract: A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR? (R and R? are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR?— (R? represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 15, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Iguchi, Takahiro Kitahara, Takuji Ishikawa, Toshiki Ichisaka, Kazunobu Uchida, Tomoyuki Fukatani, Manabu Fujisawa, Kenji Ichikawa
  • Patent number: 8338652
    Abstract: The present invention provides a simple and efficient process for producing 2,3,3,3-tetrafluoropropene(HFC-1234yf), the process being useful for industrial production. More specifically, the present invention relates to: a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of: (I) reacting a compound expressed by Formula (1): CF3CF2CH2X??(1) wherein X represents Cl, Br or I, with a base to produce a compound expressed by Formula (2): CF3CF?CHX??(2) wherein X is the same as above; and (II) reducing the compound expressed by Formula (2) with hydrogen in the presence of a catalyst to produce 2,3,3,3-tetrafluoropropene.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: December 25, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Junpei Terada, Takuji Ishikawa
  • Publication number: 20120123031
    Abstract: The present invention provides an organosol composition that is stable even in the case that the PTFE particle content is high. The present invention relates to an organosol composition of PTFE particles, comprising PTFE particles (A), a polymer (B), and an organic solvent (S), wherein (1) the polymer (B) is soluble in the organic solvent (S), (2) the amount of the PTFE particles (A) is not lower than 50% by mass of the total amount of the PTFE particles (A) and the polymer (B), and (3) the precipitation ratio of the PTFE particles after 48 hours is not higher than 60% when the total solids concentration of the PTFE particles (A) and the polymer (B) is 5% by mass.
    Type: Application
    Filed: May 9, 2011
    Publication date: May 17, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuji Ishikawa, Atsuko Tanaka, Taku Yamanaka, Nobuhiko Tsuda, Kazunobu Uchida, Takahiro Kitahara, Tomoyuki Fukatani
  • Publication number: 20120107689
    Abstract: The present invention provides a binder composition for an electrode. The binder composition includes PTFE particles as primary particles uniformly dispersed in an organic solvent at a high concentration. The present invention relates to a binder composition for an electrode, comprising an organosol composition containing PTFE particles (A), a polymer (B), and a fluorine-free organic solvent (C); and no electrode active material (J), wherein the polymer (B) is soluble in the fluorine-free organic solvent (C).
    Type: Application
    Filed: May 9, 2011
    Publication date: May 3, 2012
    Applicant: DAIKIN INDUSTRIES BUILDING
    Inventors: Kenzou Takahashi, Mai Koyama, Emi Miyanaga, Meiten Koh, Hideo Sakata, Hiroyuki Arima, Tomoyo Sanagi, Hitomi Nakazawa, Takuji Ishikawa, Atsuko Tanaka, Toshiki Ichisaka
  • Patent number: 7777075
    Abstract: The invention provides a fluoroethercarboxylic acid which is represented by the general formula (I): Rf1OCHFCF2ORf2COOM??(I) wherein Rf1 represents a partially or fully fluorinated alkyl group, which may optionally be interrupted with one or more oxygen atoms, Rf2 represents a partially or fully fluorinated alkylene group, which may optionally be interrupted with one or more oxygen atoms, and M represents a monovalent alkali metal, NH4 or H. The fluoroethercarboxylic acid can be suitably used as a surfactant and is low in bioaccumulation. The invention is also a method of fluoropolymer production and an aqueous fluoropolymer dispersion, using the fluoroethercarboxylic acid as a surfactant.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: August 17, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Takuji Ishikawa, Nobuhiko Tsuda, Yoshihiro Yamamoto
  • Publication number: 20100204529
    Abstract: The present invention provides a simple and efficient process for producing 2,3,3,3-tetrafluoropropene(HFC-1234yf), the process being useful for industrial production. More specifically, the present invention relates to: a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of: (I) reacting a compound expressed by Formula (1): CF3CF2CH2X ??(1) wherein X represents Cl, Br or I, with a base to produce a compound expressed by Formula (2): CF3CF?CHX ??(2) wherein X is the same as above; and (II) reducing the compound expressed by Formula (2) with hydrogen in the presence of a catalyst to produce 2,3,3,3-tetrafluoropropene.
    Type: Application
    Filed: September 10, 2008
    Publication date: August 12, 2010
    Inventors: Junpei Terada, Takuji Ishikawa