公开(公告)号：US20240279472A1

公开(公告)日：2024-08-22

申请号：US18650331

申请日：2024-04-30

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI

IPC: C08L83/06 ,  C08K3/22 ,  C08K9/06 ,  G10K11/30

CPC classification number: C08L83/06 ,  C08K3/22 ,  C08K9/06 ,  G10K11/30 ,  C08K2003/2296 ,  C08K2201/003 ,  C08L2205/03 ,  C08L2312/08 ,  C08L2314/08

Abstract: Provided are a composition for an acoustic lens, containing the following components (A) to (D), an acoustic lens, an acoustic wave probe, an ultrasound probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, a photoacoustic wave measurement apparatus, an ultrasonic endoscope, and a method for manufacturing an acoustic wave probe:



(A) a linear polysiloxane having a vinyl group,
(B) a linear polysiloxane having two or more Si—H groups in a molecular chain,
(C) a polysiloxane resin, and
(D) zinc oxide particles having an average primary particle diameter of more than 10 nm and less than 300 nm, and surface-treated with at least one surface treatment agent of a silane compound, an aluminum alkoxide compound, a zirconium alkoxide compound, or a titanium alkoxide compound,
provided that the silane compound has at least one of a hydroxy group or an alkoxy group, directly bonded to a silicon atom.

公开(公告)号：US20230292998A1

公开(公告)日：2023-09-21

申请号：US18325122

申请日：2023-05-30

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Kazuma HORITA

IPC: A61B1/005 ,  A61B1/00

CPC classification number: A61B1/0055 ,  A61B1/0011

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having good elasticity, being capable of sufficiently maintaining adhesiveness between a flexible-tube base and a polymer cover layer covering the flexible-tube base even when repeatedly exposed to heat for a long time, and being less likely to undergo a decrease in the adhesiveness between the flexible-tube base and the polymer cover layer even when subjected to disinfection treatment with a hydrogen peroxide solution, an endoscopic medical device including the flexible tube for an endoscope, and methods for producing the flexible tube and the endoscopic medical device.
The flexible tube for an endoscope has a flexible-tube base containing metal as a constituent material, a layer containing a siloxane compound and disposed on the flexible-tube base, a primer layer on the layer containing the siloxane compound, and a polymer cover layer on the primer layer. The siloxane compound has a hydroxy group. The polymer cover layer includes at least one compound of a polyamide, a polyester, a polyurethane, or a polyolefin on a side in contact with the primer layer.

公开(公告)号：US20230203353A1

公开(公告)日：2023-06-29

申请号：US18169330

申请日：2023-02-15

Applicant: FUJIFILM Corporation

Inventor： Kazushi FURUKAWA ,  Yoshihiro NAKAI

IPC: C09J163/00 ,  A61B1/00 ,  C09J11/06

CPC classification number: C09J163/00 ,  A61B1/0011 ,  A61B1/00128 ,  C09J11/06

Abstract: An object of the present invention to provide an adhesive for an endoscope and a cured product of the adhesive, and an endoscope and a method for producing the endoscope. The adhesive is able to maintain sufficient adhesive strength even when exposed to high temperature for a long time in a state of being used for fixation of a member or subjected to powerful sterilization treatment with ozone water or the like and is suitable for use in fixing a member constituting the endoscope. The adhesive for an endoscope includes an epoxy resin, an epoxy resin curing component, and a radical scavenger.

公开(公告)号：US20230133400A1

公开(公告)日：2023-05-04

申请号：US18147277

申请日：2022-12-28

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Kazushi FURUKAWA

IPC: A61L29/08

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a flexible-tube base that is flexible and tubular and a polyester elastomer layer that covers the flexible-tube base and has a naphthalene structure in a soft segment, an endoscopic medical device having the flexible tube for an endoscope, a method for producing a covering material constituting the flexible tube for an endoscope, and a method for producing the flexible tube for an endoscope.

公开(公告)号：US20220166147A1

公开(公告)日：2022-05-26

申请号：US17666984

申请日：2022-02-08

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Hirokazu Hashimoto

IPC: H01Q17/00 ,  H05K9/00 ,  C01G49/00 ,  C08K9/06

Abstract: There is provided a radio wave absorbing composition containing a magnetic powder and a binder. There is also provided a radio wave absorber containing a magnetic powder and a binder. The magnetic powder is a powder of a substitution-type hexagonal ferrite subjected to surface treatment with a surface treatment agent, the surface treatment agent is a silicon-based compound, and the binder is an olefin-based resin.

公开(公告)号：US20210298564A1

公开(公告)日：2021-09-30

申请号：US17343899

申请日：2021-06-10

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Toshihide YOSHITANI ,  Shinya ABE ,  Kazuma HORITA ,  Takeshi SENGA

IPC: A61B1/005 ,  A61B1/00 ,  A61L29/08 ,  A61L29/02 ,  B29C48/10 ,  B29C48/151

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.

公开(公告)号：US20210189203A1

公开(公告)日：2021-06-24

申请号：US17144393

申请日：2021-01-08

Applicant: FUJIFILM Corporation

Inventor： Kazushi FURUKAWA ,  Yoshihiro NAKAI

IPC: C09J163/04 ,  C09J11/06 ,  A61B1/00

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.

公开(公告)号：US20210177243A1

公开(公告)日：2021-06-17

申请号：US17177768

申请日：2021-02-17

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro HAMADA ,  Yoshihiro NAKAI

IPC: A61B1/00 ,  A61B8/12

Abstract: Provided are a balloon for an ultrasonic endoscope, the balloon being formed of a synthetic elastomer, in which the balloon is used such that a relation between a width W of a bead portion of the balloon and a width X of a bead-portion attachment groove provided in an ultrasonic endoscope insertion section to fix the balloon is 1.1≤W/X≤2.5, and a relation between an inner diameter Y of an opening of the balloon, the opening being surrounded by the bead portion, and an outer diameter Z of a part of the bead-portion attachment groove in the ultrasonic endoscope insertion section, the part being surrounded by a top of a wall surface of the bead-portion attachment groove, is 0.30≤Y/Z≤0.55; an ultrasonic endoscope including the balloon for an ultrasonic endoscope; and a method for producing the ultrasonic endoscope.

公开(公告)号：US20200255653A1

公开(公告)日：2020-08-13

申请号：US16863365

申请日：2020-04-30

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Kazuhiro HAMADA

IPC: C08L63/04 ,  G01N29/24 ,  C08G59/06 ,  C08G59/24 ,  G10K11/36

Abstract: Provided is a resin composition for an acoustic matching layer, the resin composition including metal particles (A), an epoxy resin (B), a polythiol compound (C), and a cure-accelerating compound (D). The epoxy resin (B) 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, and the polythiol compound (C) includes a compound having at least two specific partial structures. Also provided are a cured product formed of the composition, an acoustic matching sheet, an acoustic probe, an acoustic measuring apparatus, and a method for producing an acoustic probe. Further provided is an acoustic matching layer material set suitable for preparation of the composition.

公开(公告)号：US20230190076A1

公开(公告)日：2023-06-22

申请号：US18169324

申请日：2023-02-15

Applicant: FUJIFILM Corporation

Inventor： Kazuma HORITA ,  Yoshihiro NAKAI ,  Shinya ABE

IPC: A61B1/00 ,  A61B1/005

CPC classification number: A61B1/00071 ,  A61B1/005

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having good elasticity, good flexibility, and sufficient chemical resistance, 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. The flexible tube for an endoscope has a flexible-tube base that is tubular and that has flexibility and a polymer cover layer covering the flexible-tube base. The flexible-tube base has a spiral tube made of a metal strip and a tubular mesh member covering the spiral tube and made of braided metal wires, the tubular mesh member has a porosity of 2% to 10%, and the flexible tube has, between the flexible-tube base and the polymer cover layer, a primer layer including a silane coupling agent.