公开(公告)号：US20220332921A1

公开(公告)日：2022-10-20

申请号：US17848893

申请日：2022-06-24

Applicant: FUJIFILM Corporation

Inventor： Aki NAKAMICHI ,  Takuya KITAMURA ,  Kengo SAITO ,  Daigo MURAI

IPC: C08K3/38 ,  C01B21/064

Abstract: The present invention provides boron nitride particles that can be used for preparation of a thermally conductive material having excellent thermally conductive properties and peel strength. In addition, the present invention provides a composition for forming a thermally conductive material, a thermally conductive material, a thermally conductive sheet, and a device with a thermally conductive layer, in relation to the boron nitride particles. In the boron nitride particles of the present invention, an atomic concentration ratio of oxygen atomic concentration to boron atomic concentration on a surface, detected by X-ray photoelectron spectroscopy, is 0.12 or greater, and a D value obtained by Equation (1) is 0.010 or less. D value=B(OH)3(002)/BN(002)  Equation (1) B(OH)3(002): Peak strength derived from a (002) plane of boron hydroxide having a triclinic space group measured by X-ray diffraction BN(002): Peak strength derived from the (002) plane of boron nitride having a hexagonal space group measured by X-ray diffraction.

公开(公告)号：US20210109270A1

公开(公告)日：2021-04-15

申请号：US17130600

申请日：2020-12-22

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Yoshiaki TAKADA ,  Yasuhiro ISHIWATA ,  Yuzo FUJIKI ,  Kengo SAITO

IPC: G02B5/30 ,  G02F1/1335 ,  H01L51/52

Abstract: An object of the present invention is to provide a polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer of the present invention is a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and an array structure formed of the second dichroic material.

公开(公告)号：US20210055604A1

公开(公告)日：2021-02-25

申请号：US17028153

申请日：2020-09-22

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Yoshiaki TAKADA ,  Yuzo FUJIKI ,  Kengo SAITO ,  Yasuhiro ISHIWATA ,  Takashi KATOU ,  Keisuke USHIROGATA

IPC: G02F1/1335 ,  G02B5/30

Abstract: An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. A polarizer of the present invention is a polarizer formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.

公开(公告)号：US20180082710A1

公开(公告)日：2018-03-22

申请号：US15705531

申请日：2017-09-15

Applicant: FUJIFILM Corporation

Inventor： Toshio TADA ,  Norihito KASADA ,  Masahito OYANAGI ,  Akinori SUGISHIMA ,  Kengo SAITO

IPC: G11B5/733 ,  G11B5/73

Abstract: The magnetic recording medium has a non-magnetic support and a magnetic layer which is provided on the support and contains ferromagnetic powder and a binder, in which the ferromagnetic powder is ferromagnetic hexagonal ferrite powder, the magnetic layer contains an abrasive, an intensity ratio (Int (110)/Int (114)) of a peak intensity Int (110) of a diffraction peak of (110) plane of a crystal structure of the hexagonal ferrite, determined by performing X-ray diffraction analysis on the magnetic layer by using an In-Plane method, to a peak intensity Int (114) of a diffraction peak of (114) plane of the crystal structure is equal to or higher than 0.5 and equal to or lower than 4.0, and a squareness ratio in a vertical direction is equal to or higher than 0.65 and equal to or lower than 1.00. The present invention also provides a method for manufacturing the magnetic recording medium.

公开(公告)号：US20240241403A1

公开(公告)日：2024-07-18

申请号：US18421734

申请日：2024-01-24

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Yoshiaki TAKADA ,  Yuzo FUJIKI ,  Kengo SAITO ,  Yasuhiro ISHIWATA ,  Takashi KATOU ,  Keisuke USHIROGATA

IPC: G02F1/1335 ,  C09K19/04 ,  G02B1/08 ,  G02B5/30

CPC classification number: G02F1/133528 ,  C09K19/04 ,  C09K19/0403 ,  G02B1/08 ,  C09K2019/0444 ,  C09K2323/031 ,  G02B5/3016

Abstract: A polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.

公开(公告)号：US20230384498A1

公开(公告)日：2023-11-30

申请号：US18447862

申请日：2023-08-10

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Madoka KAWAI ,  Shinya WATANABE ,  Takuya INOUE ,  Kengo SAITO ,  Naoya NISHIMURA

IPC: G02B5/30 ,  C09K19/60 ,  C09K19/38 ,  C09K19/56

CPC classification number: G02B5/3016 ,  C09K19/601 ,  C09K19/3852 ,  C09K19/56

Abstract: Provided is an optically anisotropic film, an optical film, and a display device, which have a high contrast and excellent light fastness. The optically anisotropic film includes a liquid crystal compound and a dichroic substance, in which the liquid crystal compound is vertically aligned, the dichroic substance forms an arrangement structure, and in a case where, in a cross section observed with a scanning transmission electron microscope, a length of a major axis of the arrangement structure is defined as L, and a length of a minor axis of the arrangement structure is defined as D, 16 or more arrangement structures satisfying L≥30 nm are observed per 40 μm2.