Patents by Inventor Toshihide Yoshitani

Toshihide Yoshitani 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: 20220195103
    Abstract: The present invention provides a polymer capable of forming a cured substance showing high adhesiveness with respect to a wet adherend, a curable composition, and a cured substance. The polymer according to an embodiment of the present invention has a repeating unit represented by Formula (1). R represents an acryloyloxy group, a methacryloyloxy group, an acrylamide group, or a methacrylamide group. L represents an (n+1)-valent linking group. n represents an integer of 1 or more. p1 represents an integer of 1 or more.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Hirohisa HOKAZONO, Toshihide YOSHITANI
  • Publication number: 20210298564
    Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base containing metal as a constituent material, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a specific silane coupling agent and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one compound selected from the group consisting of polyamides, polyesters, polyurethanes, and polyolefins at least on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 30, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yoshihiro NAKAI, Toshihide YOSHITANI, Shinya ABE, Kazuma HORITA, Takeshi SENGA
  • Publication number: 20210290034
    Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base made of metal, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a silane coupling agent with a specific structure having an amino group and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one compound selected from the group consisting of polyamides, polyesters, and polyolefins on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 23, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yoshihiro NAKAI, Toshihide YOSHITANI, Shinya ABE, Kazuma HORITA, Takeshi SENGA
  • Patent number: 11072707
    Abstract: Provided are a resin material for an acoustic wave probe which contains a polymer formed of at least one of a structural unit (a) having a specific polysiloxane bond or a structural unit (b) having a specific partial structure, in which the structural unit (b) having the specific partial structure is an acryloyloxy structural unit (b1), an acrylamide structural unit (b2), or a styrene structural unit (b3); an acoustic lens; an acoustic wave probe; an acoustic wave measurement apparatus; an ultrasound diagnostic apparatus; a photoacoustic wave measurement apparatus; and an ultrasound endoscope.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 27, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yuzo Nagata, Yoshihiro Nakai, Toshihide Yoshitani, Shigeki Uehira, Atsushi Osawa
  • 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: 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: 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: 20200100652
    Abstract: A flexible tube for an endoscope, the flexible tube having a flexible tube base made of metal, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a compound represented by formula (1) and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes a polyurethane elastomer on a side in contact with the primer layer. X1 and X2 each represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, an acyl group, an alkoxycarbonyl group, or a carbamoyl group, Y1 represents a hydroxy group or an alkoxy group, and Y2 and Y3 each represent a hydroxy group, an alkoxy group, or an alkyl group. L represents a single bond or a specific divalent group.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Toshihide YOSHITANI, Shinya ABE, Yoshihiro NAKAI
  • Publication number: 20190380680
    Abstract: Provided are a resin material for an acoustic lens including a resin (a) containing at least one of an epoxy group, a carbon-carbon double bond group, a methylol group, or a phenolic hydroxyl group; and a resin (b) containing a structural unit having a polysiloxane bond, and an acoustic lens, an acoustic wave probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, a photoacoustic wave measurement apparatus, and an ultrasound endoscope in which the resin material is used.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yuzo Nagata, Yoshihiro Nakai, Toshihide Yoshitani, Shigeki Uehira
  • Publication number: 20190328932
    Abstract: Provided are a medical lubricating member including a silicone base material, and a lubricating coated film which is laminated on at least one surface of the silicone base material, in which the silicone base material contains a reactive functional group in the surface on which the lubricating coated film is laminated, and the lubricating coated film is a film formed of a composition containing a hydrophilic polymer and polyisocyanate; a medical device using the medical lubricating member; and a method of producing the medical lubricating member.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Toshihide YOSHITANI, Nobuharu TAKAHASHI
  • Publication number: 20190218394
    Abstract: Provided are a resin material for an acoustic wave probe which contains a polymer formed of at least one of a structural unit (a) having a specific polysiloxane bond or a structural unit (b) having a specific partial structure, in which the structural unit (b) having the specific partial structure is an acryloyloxy structural unit (b1), an acrylamide structural unit (b2), or a styrene structural unit (b3); an acoustic lens; an acoustic wave probe; an acoustic wave measurement apparatus; an ultrasound diagnostic apparatus; a photoacoustic wave measurement apparatus; and an ultrasound endoscope.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yuzo NAGATA, Yoshihiro Nakai, Toshihide Yoshitani, Shigeki Uehira, Atsushi Osawa
  • Publication number: 20190017046
    Abstract: Objects of the present invention are to provide a preparation, which satisfies both a sufficient drug carrying amount and a preferred decomposition rate, and a method for manufacturing the preparation and to provide a member for a preparation used in the preparation of the present invention described above and a method for manufacturing the member. According to the present invention, there are provided a preparation containing a crosslinked substance of an anionic polypeptide and a cationic, polypeptide and a cationic drug; a method for manufacturing the preparation including a freezing step, a drying step, a crosslinking step, and a drug adding step; a member for a preparation formed of a crosslinked substance of an anionic polypeptide and a cationic polypeptide; and a method for manufacturing the member for a preparation.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 17, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Hayato MIYOSHI, Toshihide YOSHITANI, Tadanori YAMADA
  • Patent number: 9796812
    Abstract: Provided is a polymer obtained by homopolymerizing a lactone monomer. The polymer contains a structural unit having a lactone ring containing three or more carbon atoms, wherein at least one of the carbon atoms, except for C of —C(?O)O—, of the lactone ring forms a part of a main chain; and wherein at least one of the carbon atoms, except for C of —C(?O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 24, 2017
    Assignees: THE UNIVERSITY OF TOKYO, FUJIFILM Corporation
    Inventors: Takafumi Hosokawa, Toshihide Yoshitani, Shingo Ito, Kyoko Nozaki, Ryo Nakano
  • Patent number: 9321882
    Abstract: Provided is a polyester polymer including a repeating unit derived from a dicarboxylic acid compound containing a partial structure represented by the following Formula (C) and a repeating unit derived from a diol compound containing a cyclic structure, in which the partial structure represented by Formula (C) constitutes a portion of the main chain: wherein in Formula (C), RA and RB each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; n and in each independently represent an integer from 0 to 2; Cy represents an unsaturated 6-membered or 7-membered ring which may contain a heteroatom; and * and ** each represent a bonding hand, while * may be a bonding hand extending from RA.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: April 26, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Shigeki Uehira, Toshimitsu Sakuma, Toshihide Yoshitani, Kozo Sato
  • Publication number: 20160090442
    Abstract: Provided is a polymer obtained by homopolymerizing a lactone monomer. The polymer contains a structural unit having a lactone ring containing three or more carbon atoms, wherein at least one of the carbon atoms, except for C of —C(?O)O—, of the lactone ring forms a part of a main chain; and wherein at least one of the carbon atoms, except for C of —C(?O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 31, 2016
    Applicants: FUJIFILM CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Takafumi HOSOKAWA, Toshihide YOSHITANI, Shingo ITO, Kyoko NOZAKI, Ryo NAKANO
  • Patent number: 9250515
    Abstract: In an electrophotographic photoreceptor having a photosensitive layer on a conductive support, a binder resin that constitutes the photosensitive layer includes a polymer containing a skeleton derived from dehydroabietic acid in the main chain. An electrophotographic photoreceptor which accelerates conversion to natural materials from the viewpoint of manufactured product quality or production suitability, since the binder resin of the photosensitive layer has satisfactory solvent solubility.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: February 2, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Shigeki Uehira, Toshihide Yoshitani
  • Publication number: 20140295468
    Abstract: The test substance assay method includes (i) obtaining a mixed solution by mixing (a) first dry particles that are modified with first binding substances exhibiting binding properties specific to a test substance, have an average particle size of 100 nm to 200 nm, and have labels, and (b) second dry particles that are modified with second binding substances not exhibiting binding properties specific to the test substance, have an average particle size of 100 nm to 200 nm, and do not have labels with (c) a test sample solution containing the test substance; (ii) applying the mixed solution onto a substrate; (iii) causing the test substance to be trapped in a reaction site on the substrate that has third binding substances having binding properties specific to the test substance or has substances exhibiting binding properties to the first binding substances; and (iv) detecting the test substance.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Noriyuki KASAGI, Hiroyuki CHIKU, Dai UJIHARA, Toshihide YOSHITANI
  • Publication number: 20140220484
    Abstract: In an electrophotographic photoreceptor having a photosensitive layer on a conductive support, a binder resin that constitutes the photosensitive layer includes a polymer containing a skeleton derived from dehydroabietic acid in the main chain. An electrophotographic photoreceptor which accelerates conversion to natural materials from the viewpoint of manufactured product quality or production suitability, since the binder resin of the photosensitive layer has satisfactory solvent solubility.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeki UEHIRA, Toshihide YOSHITANI
  • Patent number: 8658757
    Abstract: Provided is a polyamide polymer in which a partial structure represented by the following formula (C) constitutes a portion of the main chain: wherein in Formula (C), RA and RB each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; n and m each independently represent an integer from 0 to 2; Cy represents an unsaturated 6-membered or 7-membered ring which may contain a heteroatom; and * and ** each represent a bonding hand, while * may be a bonding hand extending from RA.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: February 25, 2014
    Assignee: Fujifilm Corporation
    Inventors: Shigeki Uehira, Toshihide Yoshitani, Toshimitsu Sakuma, Kozo Sato
  • Patent number: 8598336
    Abstract: A cellulose derivative and a resin composition having good thermoplasticity, strength, and elongation at break and therefore suited to molding processing are provided. The cellulose derivative is derived by replacing at least part of the hydrogen atoms of the hydroxyl groups of cellulose with a hydrocarbon group and an aliphatic or aromatic oxycarbonyl group.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: December 3, 2013
    Assignee: Fujifilm Corporation
    Inventors: Yutaka Nozoe, Toshihide Yoshitani