Patents by Inventor Hirotaka Kitagawa

Hirotaka Kitagawa 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: 20230392053
    Abstract: An object of the present invention is to provide a polymer film with an adhesive layer, capable of forming a laminate in which a metal layer formed of a metal foil that is arranged on and compression-bonded to the adhesive layer is excellent in adhesiveness, and a portion other than the metal layer has a low dielectric loss tangent. Another object of the present invention is to provide a laminate obtained by using the polymer film with an adhesive layer; and a method for producing the laminate. A polymer film with an adhesive layer according to an embodiment of the present invention has a polymer film including a polymer having a standard dielectric loss tangent of 0.005 or less and the adhesive layer arranged on the polymer film, in which in a case where a surface of the polymer film on a side of the adhesive layer is measured by X-ray photoelectron spectroscopy, an atomic ratio of oxygen atoms to carbon atoms is 0.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Genya TANAKA, Hirotaka KITAGAWA
  • Patent number: 11760932
    Abstract: An object of the present invention is to provide a liquid crystal polymer film having a low dielectric loss tangent. In addition, an object of the present invention is to provide a laminate having the liquid crystal polymer film. The liquid crystal polymer film includes a liquid crystal polymer and a filler, in which, in a case where the liquid crystal polymer film includes one kind of the filler, a dielectric loss tangent of the filler under conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and in a case where the liquid crystal polymer film includes two or more kinds of the fillers, a mass average value of dielectric loss tangents of the two or more kinds of the fillers under the conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and a ratio of a volume occupied by the filler is 10% by volume or more with respect to a total volume of the liquid crystal polymer film.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: September 19, 2023
    Assignee: FUJIFILM Corporation
    Inventor: Hirotaka Kitagawa
  • Publication number: 20230123450
    Abstract: A medical apparatus configured for insertion directly or indirectly into a living body is provided with a coloring part having a marking formed on an outer surface. The marking has a coloring layer of an acrylic resin containing a pigment and a protective layer of a polymethacrylic ester covering the coloring layer directly or indirectly, and an upper surface of the coloring part is recessed from a part of the medical apparatus, such as a covering tube of a sheath of an endoscope treatment instrument, adjacent to the coloring part on the outer surface.
    Type: Application
    Filed: August 12, 2022
    Publication date: April 20, 2023
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hiroaki KASAI, Issei MAEDA, Hirotaka KITAGAWA, Takashi MAGARA
  • Publication number: 20230041083
    Abstract: Provided are a polymer film including a particle-containing layer that contains at least one resin selected from the group consisting of a liquid crystal polymer, a polysulfone resin, a polyethersulfone resin, and a polyphenylene sulfide resin, and liquid crystal polymer particles, in which a content of the liquid crystal polymer particles in the particle-containing layer is 40% by volume or greater, and a method of producing the same, and a laminate formed of the polymer film and a method of producing the same.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Hirotaka KITAGAWA, Daisuke HAYASHI
  • Publication number: 20230042165
    Abstract: Provided are a liquid crystal polymer particle in which a difference in contact angle of the liquid crystal polymer particle with water due to a water droplet in air at 25° C. and 50% RH between inside the particle and a surface of the particle is 7° or greater, a liquid crystal polymer particle in which a difference in atomic ratio of an oxygen atom to a carbon atom measured by X-ray photoelectron spectroscopy between inside a particle and a surface of the particle is 0.02 or greater, a method of producing the liquid crystal polymer particle, and a composite material formed of the liquid crystal polymer particle.
    Type: Application
    Filed: July 4, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke HAYASHI, Keita TAKAHASHI, Genya TANAKA, Hirotaka KITAGAWA
  • Publication number: 20230041602
    Abstract: An object of the present invention is to provide a liquid crystal polymer film having a low dielectric loss tangent. In addition, an object of the present invention is to provide a laminate having the liquid crystal polymer film. The liquid crystal polymer film includes a liquid crystal polymer and a filler, in which, in a case where the liquid crystal polymer film includes one kind of the filler, a dielectric loss tangent of the filler under conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and in a case where the liquid crystal polymer film includes two or more kinds of the fillers, a mass average value of dielectric loss tangents of the two or more kinds of the fillers under the conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and a ratio of a volume occupied by the filler is 10% by volume or more with respect to a total volume of the liquid crystal polymer film.
    Type: Application
    Filed: July 4, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventor: Hirotaka KITAGAWA
  • Publication number: 20220213371
    Abstract: An object of the present invention is to provide a composition for forming a thermally conductive material, from which a thermally conductive material having excellent thermally conductive properties and adhesiveness can be obtained. In addition, another object of the present invention is to provide a thermally conductive material, a thermally conductive sheet, and a device with a thermally conductive layer. A composition for forming a thermally conductive material of the present invention contains a thermosetting compound A, boron nitride particles B containing boron nitride and having an average particle diameter of 25.0 ?m or more, and boron nitride particles C containing boron nitride and having an average particle diameter of 15.0 ?m or less, in which an oxygen atom concentration on a surface of the boron nitride particles C detected by X-ray photoelectron spectroscopic analysis is 1.5 atomic % or more.
    Type: Application
    Filed: March 15, 2022
    Publication date: July 7, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Takuya KITAMURA, Hirotaka KITAGAWA
  • Patent number: 10739678
    Abstract: Provided are a photocurable composition capable of suppressing both deformation (change in line width roughness (?LWR)) of a pattern after etching and breakage of a pattern after etching, a pattern forming method, and a method for manufacturing a device.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 11, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Hirotaka Kitagawa
  • Patent number: 10626287
    Abstract: A resin composition for underlayer film formation capable of forming an underlayer film having good adhesiveness and excellent surface flatness, a layered product, a method for forming a pattern and a process for producing a device are provided. The resin composition for underlayer film formation includes a resin having a group represented by General Formula (A) and a group represented by General Formula (B), and a solvent. Ra1 represents a hydrogen atom or a methyl group, Rb1 and Rb2 each independently represents an unsubstituted linear or branched alkyl group having 1 to 20 carbon atoms or an unsubstituted cycloalkyl group having 3 to 20 carbon atoms, Rb3 represents an unsubstituted linear or branched alkyl group having 2 to 20 carbon atoms or an unsubstituted cycloalkyl group having 3 to 20 carbon atoms, and Rb2 and Rb3 may be bonded to each other to form a ring.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 21, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Kitagawa, Tadashi Oomatsu
  • Publication number: 20200026274
    Abstract: A generation positon of a gravity and an observation position are appropriately specified according to traffic environment and traffic rules. Thus, safety autonomous driving is enabled based on Theory of Relativity (gravitational field theory).
    Type: Application
    Filed: August 30, 2019
    Publication date: January 23, 2020
    Inventor: Hirotaka KITAGAWA
  • Patent number: 10504739
    Abstract: A curable composition for optical imprinting which is excellent in ink jet adequacy and releasability, a pattern forming method, a fine pattern, and a method for manufacturing a semiconductor device are provided. The curable composition for optical imprinting contains a polymerizable compound (A), a photopolymerization initiator (B), and a compound (C) expressed by General Formula (I); in General Formula (I), A represents a dihydric to hexahydric polyhydric alcohol residue. p represents 0 to 2, l q represents 1 to 6, p+q represents an integer of 2 to 6, each of m and n independently represents 0 to 20. r expressed by Formula (1) is 6 to 20. Each R independently represents an alkyl group having 1 to 10 carbon atoms, an aryl group, or an acyl group.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 10, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Kitagawa, Yuichiro Goto
  • Publication number: 20190344238
    Abstract: Provided are a microcapsule encapsulating a solvent, the solvent having a solubility parameter of greater than or equal to 8 (cal/cm3)1/2 and less than 10 (cal/cm3)1/2 and a molecular weight of from 425 to 3,000; and a method for producing the microcapsule.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Yu ISOBE, Hirotaka KITAGAWA
  • Publication number: 20190334037
    Abstract: Provided are a coating composition including polymer particles having a number-average primary particle diameter of 30 nm to 200 nm, a siloxane resin which has a weight-average molecular weight of 600 to 6,000, is a siloxane resin including at least one unit selected from units (1), (2), and (3) described below, and has a total mass of the units (1), (2), and (3) being 95% by mass or more of a total mass of the siloxane resin, and a solvent and applications thereof. R1's each independently represent an alkyl group having 1 to 8 carbon atoms or an alkyl fluoride group having 1 to 8 carbon atoms, R2's each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and, in a case where both the units (1) and (2) are included, the alkyl groups having 1 to 8 carbon atoms represented by R1's or R2's may be identical to or different from each other.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Inventors: Ayana FUJIMAKI, Hideaki TSUBAKI, Hirotaka KITAGAWA, Yu ISOBE
  • Publication number: 20190233677
    Abstract: Provided are a coating composition including nonionic polymer particles having a number-average primary particle diameter of 5 nm to 200 nm and a hydrolysable silane compound represented by Formula 1, an antireflection film which is a cured substance of the coating composition, a laminate including the antireflection film, a method for manufacturing the laminate, and a solar cell module including the laminate. In Formula 1, X represents a hydrolysable group or a halogen atom, Y represents a non-hydrolysable group, and n represents an integer of 0 to 2.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Inventors: Hideaki TSUBAKI, Ayana FUJIMAKI, Hirotaka KITAGAWA
  • Patent number: 10344177
    Abstract: Provided is a composition for forming underlying layer for imprints, which is excellent in surface flatness and adhesiveness. The composition for forming underlying layer for imprints comprises (A) a resin having an ethylenic unsaturated group (P), and a cyclic ether group (T) selected from oxiranyl group and oxetanyl group, and having a weight-average molecular weight of 1000 or larger; and, (B) a solvent.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: July 9, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Kitagawa, Yuichiro Enomoto
  • Publication number: 20190202010
    Abstract: The present invention provides a car body positioning jig device capable of limiting the restriction of movement of a welding device, etc. In the car body positioning jig device, at least a portion of a main body section is disposed closer to an internal space of a body assembly than an opening. The main body section comprises: a first positioning mechanism unit for adjustably supporting the position of a first positioning member that positions a first region of the opening; a second positioning mechanism unit for adjustably supporting the position of a second positioning member that positions a second region of the opening; and a frame part for supporting the first positioning mechanism unit and the second positioning mechanism unit.
    Type: Application
    Filed: September 14, 2017
    Publication date: July 4, 2019
    Inventors: Kazuki AKAMI, Akinori HASADO, Koichi TAKEUCHI, Hirotaka KITAGAWA, Hiroshi ICHINOMIYA, Masao SHIMOYAMA, Kazuhisa HADA
  • Patent number: 10261413
    Abstract: Provided are a photocurable composition for imprints, having good releasability and temporal stability of the releasability, a pattern forming method, and a method for manufacturing a device. This photocurable composition for imprints includes a monofunctional chained aliphatic (meth)acrylate (A1) not containing a fluorine atom, a bifunctional or higher polyfunctional (meth)acrylate (A2) not containing a fluorine atom, a monofunctional (meth)acrylate (B) containing a fluorine atom, a photopolymerization initiator (C), and a non-polymerizable compound (D) having a polyoxyalkylene structure in a proportion of 1% to 5% by mass, in which the monofunctional chained aliphatic (meth)acrylate (A1) not containing a fluorine atom has a boiling point of 100° C. to 200° C. at a pressure of 0.67 kPa, and the monofunctional (meth)acrylate (B) containing a fluorine atom has a boiling point of 100° C. to 200° C. at a pressure of 0.67 kPa.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 16, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Kitagawa, Yuichiro Goto
  • Patent number: 10246605
    Abstract: Provided are a resin composition for underlayer film formation with which a variation hardly occurs in the line width distribution after processing due to a small thickness of a residual film after mold pressing, a layered product, a method for forming a pattern, an imprint forming kit, and a process for producing a device. Disclosed is a resin composition for underlayer film formation which is used to form an underlayer film by being applied onto a base material, including a first resin having a radical reactive group in the side chain, a second resin containing at least one selected from a fluorine atom and a silicon atom, and a solvent. The second resin is preferably a resin containing a fluorine atom. The radical reactive group of the first resin is preferably a (meth)acryloyl group.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: April 2, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Oomatsu, Hirotaka Kitagawa, Yuichiro Goto
  • Patent number: 10191375
    Abstract: Provided are a resin composition for underlayer film formation with which a variation hardly occurs in the line width distribution after processing due to a small thickness of a residual film after mold pressing, a layered product, a method for forming a pattern, an imprint forming kit, and a process for producing a device. A resin composition for underlayer film formation includes a resin having a group represented by General Formula (A) and at least one group selected from a group represented by General Formula (B), an oxiranyl group and an oxetanyl group, a nonionic surfactant and a solvent.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: January 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Tadashi Oomatsu, Hirotaka Kitagawa, Yuichiro Goto
  • Patent number: 10189928
    Abstract: Provided are a curable composition having excellent releasability and ink jet discharge accuracy, a pattern forming method, a pattern, and a method for manufacturing a device. The curable composition includes a polymerizable compound and a photopolymerization initiator, in which neopentyl glycol diacrylate accounts for 10% by mass or more of the polymerizable compound, and the total content of a compound represented by the following Formula (I) and a compound represented by the following Formula (II) is 5% by mass or less with respect to the content of neopentyl glycol diacrylate.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Kitagawa, Yuichiro Goto