Patents by Inventor Kazushi Furukawa

Kazushi Furukawa 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: 20210189203
    Abstract: Provided are an adhesive for an endoscope and a cured product thereof. The adhesive for an endoscope includes an epoxy resin including at least one of a bisphenol A epoxy resin, a bisphenol F epoxy resin, or a phenol novolac epoxy resin, a polyamine compound, and an alcohol compound. Also provided are an endoscope in which the cured product is fixed and a method for producing the endoscope.
    Type: Application
    Filed: January 8, 2021
    Publication date: June 24, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Yoshihiro NAKAI
  • Publication number: 20210106210
    Abstract: Provided are an adhesive for an endoscope, a cured product of the adhesive for an endoscope, an endoscope produced using the adhesive for an endoscope, and a method for producing an endoscope. The adhesive for an endoscope includes at least one epoxy resin (A) selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, and phenol novolac epoxy resins, a polyamine compound (B), and a specific compound (C) having an epoxy group.
    Type: Application
    Filed: December 3, 2020
    Publication date: April 15, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yoshihiro NAKAI, Kazushi FURUKAWA
  • Patent number: 10973392
    Abstract: Provided are an adhesive for an endoscope, a cured product, an endoscope, and a method for producing an endoscope. The adhesive for an endoscope is a two-component adhesive for an endoscope. The two-component adhesive has a base and a curing agent. The base includes at least one epoxy resin (A) selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, and phenol novolac epoxy resins. The curing agent includes a tertiary amine compound (B). The tertiary amine compound (B) accounts for 60 mass % or more of a curing component included in the curing agent.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: April 13, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kazushi Furukawa, Toshihide Yoshitani, Yoshihiro Nakai
  • Publication number: 20210007579
    Abstract: Provided are a two-component adhesive for an endoscope and a cured product thereof, the adhesive having a base resin and a curing agent. The base resin contains an epoxy resin (A), and the epoxy resin (A) includes an epoxy resin (a) having an average degree of polymerization of 2 or more. Also provided are an endoscope produced by using the adhesive for an endoscope and a method for producing the endoscope.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 14, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Yoshihiro NAKAI, Shigeki UEHIRA
  • Publication number: 20200405918
    Abstract: A flexible tube for an endoscope has a flexible tube substrate that is flexible and tubular and a resin layer (A) covering the flexible tube substrate. The resin layer (A) includes a thermoplastic resin (a) including at least one of a polyatnide resin, a polyurethane resin, a polyester resin, a polystyrene resin, or an acrylic resin and having a tensile strength at 10% elongation of 10 Pa or more and a hindered amine compound (b) having a molecular weight of 500 or more. Also provided are an endoscopic medical device including the flexible tube for an endoscope and a resin composition suitable for forming the resin layer of the flexible tube for an endoscope.
    Type: Application
    Filed: September 16, 2020
    Publication date: December 31, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Yoshihiro NAKAI, Kazushi Furukawa
  • Publication number: 20200270448
    Abstract: Provided is a resin composition for an acoustic matching layer, the resin composition including an epoxy resin (A), a specific polyamine compound (B), and metal particles (C). The epoxy resin (A) includes at least one epoxy resin selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, and phenol novolac epoxy resins. Also provided are a cured product formed of the composition, an acoustic matching sheet, an acoustic probe, an acoustic measuring apparatus, a method for producing an acoustic probe, and an acoustic matching layer material set.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazuhiro Hamada, Kazushi Furukawa, Yoshihiro Nakai
  • Publication number: 20200187754
    Abstract: Provided are an adhesive for an endoscope, a cured product thereof, an endoscope produced using the adhesive for an endoscope, and a method for producing the endoscope. The adhesive for an endoscope is a two-component adhesive for an endoscope. The two-component adhesive has a base and a curing agent. The base includes at least one epoxy resin (A) selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, and phenol novolac epoxy resins. The curing agent includes at least one specific polyamine compound (B). The adhesive for an endoscope is used to fix at least one of a metal member or a glass member constituting the endoscope.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Toshihide YOSHITANI, Yoshihiro NAKAI
  • Publication number: 20200187755
    Abstract: Provided are an adhesive for an endoscope, a cured product, an endoscope, and a method for producing an endoscope. The adhesive for an endoscope is a two-component adhesive for an endoscope. The two-component adhesive has a base and a curing agent. The base includes at least one epoxy resin (A) selected from the group consisting of bisphenol A epoxy resins, bisphenol F epoxy resins, and phenol novolac epoxy resins. The curing agent includes a tertiary amine compound (B). The tertiary amine compound (B) accounts for 60 mass % or more of a curing component included in the curing agent.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Toshihide YOSHITANI, Yoshihiro NAKAI
  • Publication number: 20200107697
    Abstract: Provided is a flexible tube, for an endoscope, having a flexible tube substrate, for an endoscope, that is flexible and tubular and a resin layer covering the flexible tube substrate for an endoscope. The resin layer includes one or more layers, the layers including a layer A including a polyester elastomer (a) as a resin component, a hindered amine compound (b), and a particular compound (c). Also provided are an endoscopic medical device including the flexible tube for an endoscope and a resin composition and a set of resin compositions that are suitable for forming the resin layer of the flexible tube for an endoscope.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Yoshihiro NAKAI
  • Publication number: 20200100646
    Abstract: Provided is a flexible tube, for an endoscope, having a flexible tube substrate, for an endoscope, that is flexible and tubular and a resin layer covering the flexible tube substrate for an endoscope. The resin layer includes one or more layers, the layers including a layer A including a polyester elastomer (a) as a resin component, at least one of a phosphorus-containing compound (b1) or a thioether compound (b2), and a hindered amine compound (c). Also provided are an endoscopic medical device including the flexible tube for an endoscope and a resin composition and a set of resin compositions that are suitable for forming the resin layer of the flexible tube for an endoscope.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi FURUKAWA, Yoshihiro NAKAI
  • Patent number: 10538670
    Abstract: Provided are a pigment dispersion liquid including a pigment, a polymer dispersant, and water; and an inkjet ink containing the pigment dispersion liquid. The pigment contains a compound represented by General Formula (1) described in the specification, a tautomer thereof, or a salt of the compound or the tautomer. The polymer dispersant contains a polymer compound which has a repeating unit represented General Formula (2-1) and a repeating unit represented General Formula (2-2) described in the specification, and having a structure represented by General Formula (3) introduced into at least one terminal of a main chain: in General Formula (3), L represents a linking group; R4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and the symbol * represents a linking bond.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: January 21, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shinya Hayashi, Yoshiaki Nagata, Kazufumi Omura, Kazushi Furukawa, Keiichi Tateishi
  • Publication number: 20190153231
    Abstract: Provided are a pigment dispersion liquid including a pigment, a polymer dispersant, and water, in which the pigment is a pigment including a compound represented by General Formula (1) as described in the specification, a tautomer thereof, or a salt of the compound or the tautomer, and the polymer dispersant includes a polymer compound having a repeating unit represented by General Formula (2-1) and a repeating unit represented by General Formula (2-2) as described in the specification, and having a structure represented by General Formula (3) introduced into at least one terminal of the main chain; and an inkjet ink including this pigment dispersion liquid. In General Formula (3), L represents a linking group; R4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and the symbol * represents a linking bond.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Shinya HAYASHI, Yoshiaki NAGATA, Kazufumi OMURA, Kazushi FURUKAWA, Keiichi TATEISHI
  • Patent number: 9633755
    Abstract: The conductive composition contains at least (a) conductive metal fibers, and (b) at least one compound selected from a compound represented by the following Formula (1), a compound represented by the following Formula (2), and a compound having a partial structure represented by the following Formula (3). Each of R1 and R2 independently represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, or a carbamoyl group. Each of R3, R4, R5, R6, R8, R9, R10, and R11 independently represents an alkyl group having 1 to 4 carbon atoms, and R7 represents a hydrogen atom or a substituent. R12 represents an alkyl group, an alkoxy group, an acyl group, or a hydrogen atom. * represents a bond.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Tokihiko Matsumura, Toyohisa Oya, Kazushi Furukawa
  • Patent number: 9625162
    Abstract: A cooker is equipped with a heating chamber having an open part in the front surface and holding an object to be cooked, an opening/closing door having a see-through window and opens and closes the open part, a suction intake opening opened in one of the side walls that faces the heating chamber, an air discharge outlet opened in the other side wall of the heating chamber, and a circulation duct having first and second side surface parts provided outside of the two side walls of the heating chamber and connecting the suction intake opening provided at the first side surface part and the air discharge outlet provided at the second side surface part. The cooker further includes a circulation fan provided inside the circulation duct and drawing in gas inside the heating chamber through the suction intake opening and blows it out through the air discharge outlet.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: April 18, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazushi Yoshimura, Kazushi Furukawa, Masahiro Nishijima, Hiromi Suenaga
  • Publication number: 20170101533
    Abstract: Provided are a compound represented by any one of Formulae (1) to (3) (for example, the following compound), a coloring composition for dyeing or textile printing including the compound, an ink jet ink including the coloring composition for dyeing or textile printing, a method of printing on fabric, and a dyed or printed fabric, in which the color is excellent, the color optical density is high, and light fastness, water fastness, and chlorine fastness are excellent.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kazunari YAGI, Hiromi KOBAYASHI, Takashi IIZUMI, Yoshiaki NAGATA, Keiichi TATEISHI, Kazushi FURUKAWA
  • Patent number: 9224518
    Abstract: The conductive composition contains at least (a) conductive metal fibers, and (b) at least one compound selected from a compound represented by the following Formula (1) and a compound represented by the following Formula (2). In Formula (1), each of R1 and R2 independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a halogen atom, and R3 represents an alkyl group or an aryl group. The compound represented by Formula (1) may include a structure that plural compounds represented by Formula (1) are linked to each other in a single molecule. In Formula (2), each of R4 and R5 independently represents an alkyl group. The compound represented by Formula (2) may include a structure that plural compounds represented by Formula (2) are linked to each other.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tokihiko Matsumura, Toyohisa Oya, Kazushi Furukawa
  • Publication number: 20150013764
    Abstract: The conductive composition contains at least (a) conductive metal fibers, and (b) at least one compound selected from a compound represented by the following Formula (1), a compound represented by the following Formula (2), and a compound having a partial structure represented by the following Formula (3). Each of R1 and R2 independently represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, or a carbamoyl group. Each of R3, R4, R5, R6, R8, R9, R10, and R11 independently represents an alkyl group having 1 to 4 carbon atoms, and R7 represents a hydrogen atom or a substituent. R12 represents an alkyl group, an alkoxy group, an acyl group, or a hydrogen atom. * represents a bond.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 15, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Tokihiko MATSUMURA, Toyohisa OYA, Kazushi FURUKAWA
  • Publication number: 20150013763
    Abstract: The conductive composition contains at least (a) conductive metal fibers, and (b) at least one compound selected from a compound represented by the following Formula (1) and a compound represented by the following Formula (2). In Formula (1), each of R1 and R2 independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a halogen atom, and R3 represents an alkyl group or an aryl group. The compound represented by Formula (1) may include a structure that plural compounds represented by Formula (1) are linked to each other in a single molecule. In Formula (2), each of R4 and R5 independently represents an alkyl group. The compound represented by Formula (2) may include a structure that plural compounds represented by Formula (2) are linked to each other.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 15, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Tokihiko MATSUMURA, Toyohisa OYA, Kazushi FURUKAWA
  • Patent number: 8511224
    Abstract: An insertion hole (83a) is provided in a packing (83) and a rotating shaft (81a) is inserted into the insertion hole (83a). A sliding portion (83b) forming an air clearance (83c) is provided on the outside of the packing (83). The rotating shaft (81a) is inserted into the insertion hole (83a) with a grease G applied to the circumferential surface thereof. When the rotating shaft (81a) is inserted, the grease G is shaved off by the sliding portion (83b) and a sufficient amount of the grease G is stored in the air clearance (83c). Consequently, frictional sound and heat are and thus reduced between the rotating shaft (81a) and the packing (83), the sliding portion (83b) can come into tight contact with the rotating shaft (81a), thereby enhancing airtightness.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: August 20, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazushi Furukawa, Takao Murai, Kazuyuki Matsubayashi
  • Publication number: 20110186791
    Abstract: An ultraviolet absorbent composition, containing at least one kind of specific ultraviolet absorbent as exemplified below, and at least one kind of specific compound as exemplified below.
    Type: Application
    Filed: March 30, 2009
    Publication date: August 4, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Kazushi Furukawa, Keizo Kimura, Youichiro Takeshima, Ichiro Amasaki