公开(公告)号：US20170316799A1

公开(公告)日：2017-11-02

申请号：US15498732

申请日：2017-04-27

Applicant: FUJIFILM Corporation

Inventor： Osamu SHIMIZU ,  Tatsuo MIKAMI

IPC: G11B5/706 ,  G11B5/012 ,  G11B5/09 ,  G11B5/00

CPC classification number: G11B5/70626 ,  G11B5/012 ,  G11B5/09 ,  G11B5/70 ,  G11B2005/0024

Abstract: Provided is a coating-type magnetic recording medium for microwave assisted recording. A magnetic recording medium for microwave assisted recording having a magnetic layer including ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer exhibits an intrinsic ferromagnetic resonance frequency of 30.0 GHz or more. A magnetic recording device including the magnetic recording medium and a magnetic head for microwave assisted recording.

公开(公告)号：US20150279403A1

公开(公告)日：2015-10-01

申请号：US14673205

申请日：2015-03-30

Applicant: FUJIFILM Corporation

Inventor： Wataru KIKUCHI ,  Toshihide AOSHIMA ,  Kazutoshi KATAYAMA ,  Tatsuo MIKAMI

IPC: G11B5/70 ,  C09D127/06 ,  C09D175/04

CPC classification number: C09D127/06 ,  C08G18/4269 ,  C08G18/791 ,  G11B5/7013 ,  G11B5/714 ,  C08K5/3492 ,  C08L27/04

Abstract: An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1): wherein, in formula (1), A denotes a monovalent substituent, R1 denotes a single bond or a divalent connecting group, and m denotes an integer ranging from 2 to 4, multiple instances of A and R1 that are present can be identical or different, at least one of the multiple instances of A that are present denotes a monovalent polymer group and X denotes a heterocyclic group of valence m.

Abstract translation: 本发明的一个方面涉及一种磁记录介质，其包括在非磁性载体上包含铁磁粉末和粘合剂的磁性层，其中所述磁性层还包含重均分子量等于或大于1,000的化合物 但小于20,000，由式（1）表示：其中，在式（1）中，A表示一价取代基，R1表示单键或二价连接基，m表示2〜4的整数，多元 存在的A和R1的实例可以相同或不同，存在的多个实例中的至少一个表示一价聚合物基团，X表示价数m的杂环基团。

公开(公告)号：US20140120295A1

公开(公告)日：2014-05-01

申请号：US14150881

申请日：2014-01-09

Applicant: FUJIFILM Corporation

Inventor： Hidehiro MOCHIZUKI ,  Tatsuo MIKAMI ,  Toshiyuki KITAHARA

IPC: G11B7/256 ,  G11B7/26

CPC classification number: G11B7/256 ,  G11B7/00452 ,  G11B7/245 ,  G11B7/246 ,  G11B7/26 ,  Y10T428/1476 ,  Y10T428/24942

Abstract: A multilayer structure sheet for manufacturing an optical information recording medium having a multilayer structure with a plurality of recording layers is disclosed. The multilayer structure sheet comprises at least one unit structure in which a pressure sensitive adhesive layer, a recording layer, a recording layer support layer having a glass transition temperature higher than that of the pressure sensitive adhesive layer, and a recording layer are laid one on top of another in this order, and a release sheet is attached to an outside of an outermost pressure sensitive adhesive layer.

Abstract translation: 公开了一种用于制造具有多个记录层的多层结构的光学信息记录介质的多层结构片。 多层结构片包括至少一个单元结构，其中压敏粘合剂层，记录层，玻璃化转变温度高于压敏粘合剂层的记录层支撑层和记录层被放置在 另一个的顶部，并且将剥离片附着到最外侧的压敏粘合剂层的外侧。

公开(公告)号：US20140064053A1

公开(公告)日：2014-03-06

申请号：US14076635

申请日：2013-11-11

Applicant: FUJIFILM Corporation

Inventor： Hiroaki TSUYAMA ,  Masaharu AKIBA ,  Hidehiro MOCHIZUKI ,  Toshio SASAKI ,  Tatsuo MIKAMI

IPC: G11B7/244

CPC classification number: G11B7/244 ,  B82Y10/00 ,  C07C69/33 ,  C07C255/56 ,  G02F1/361 ,  G02F1/3611 ,  G11B7/24038 ,  G11B7/2405 ,  G11B7/246 ,  G11B2007/24624 ,  Y10T428/13

Abstract: A two-photon absorption material that can, thanks to a compound of, for example, the following formula (6), perform non-resonant two-photon absorption by light in the region shorter than 700 nm with high sensitivity and has sufficient recording/reproduction properties, a two-photon absorption recording material, a recording medium and a two-photon absorption compound usable therein are provided.

Abstract translation: 由于具有下列通式（6）的化合物，双光子吸收材料可以在低于700nm的区域中以高灵敏度的光进行非共振双光子吸收，并具有足够的记录/ 再现性质，双光子吸收记录材料，记录介质和可用于其中的双光子吸收化合物。

公开(公告)号：US20130128710A1

公开(公告)日：2013-05-23

申请号：US13739668

申请日：2013-01-11

Applicant: FUJIFILM Corporation

Inventor： Hidehiro MOCHIZUKI ,  Tatsuo MIKAMI ,  Shunichi HOSHINO

IPC: G11B7/24035

CPC classification number: G11B7/24035 ,  B82Y10/00 ,  G11B7/00455 ,  G11B7/0055 ,  G11B7/24038 ,  G11B7/245 ,  G11B7/246 ,  G11B7/248

Abstract: Optical information recording medium comprises: a plurality of recording layers 14, each of which undergoes a change in refractive index by irradiation with recording beam; and an intermediate layer 15 provided between recording layers 14. The recording layer 14 contains polymer binder and dye dispersed in the polymer binder, and at least in proximity to an interface (far-side interface 18) between the intermediate layer 15 and a recording layer 14 disposed adjacent to incident side of the intermediate layer 15 from which the recording beam enters the intermediate layer, the intermediate layer 15 has refractive index different from that of the recording layer 14. Glass transition temperature of the polymer binder is lower than melting point and decomposition point of the dye, and refractive index of the polymer binder changes by receiving heat generated when the dye absorbs the recording beam, whereby information is recordable in the recording layer.

Abstract translation: 光信息记录介质包括：多个记录层14，每个通过记录光束的照射而经历折射率的变化; 以及设置在记录层14之间的中间层15.记录层14包含分散在聚合物粘合剂中的聚合物粘合剂和染料，并且至少在中间层15与记录层之间的界面（远侧界面18）附近 14与中间层15的入射侧相邻设置，记录光从该入射侧入射到中间层，中间层15的折射率与记录层14的折射率不同。聚合物粘合剂的玻璃化转变温度低于熔点， 染料的分解点和聚合物粘合剂的折射率通过接收当染料吸收记录光束时产生的热量而改变，由此信息可记录在记录层中。

公开(公告)号：US20230253150A1

公开(公告)日：2023-08-10

申请号：US18187116

申请日：2023-03-21

Applicant: FUJIFILM Corporation

Inventor： Tatsuo MIKAMI

IPC: H01F41/04 ,  H01F17/00

CPC classification number: H01F41/046 ,  H01F17/0013 ,  H01F2017/0066 ,  H01F2017/0073

Abstract: Provided are a manufacturing method of an inductor, including forming a first magnetic layer and forming a discontinuous layer of one of a second magnetic layer and a conductive layer on the first magnetic layer, and forming the other in a discontinuous portion of the discontinuous layer, in which a thickness of the second magnetic layer is larger than a thickness of the conductive layer, and the manufacturing method further includes forming a third magnetic layer in a groove portion formed by a difference in thickness between the second magnetic layer and the conductive layer; and a manufacturing method of an electronic component including an inductor, the manufacturing method including producing an inductor by the manufacturing method.

公开(公告)号：US20220013264A1

公开(公告)日：2022-01-13

申请号：US17487269

申请日：2021-09-28

Applicant: FUJIFILM Corporation

Inventor： Tatsuo ISHIKAWA ,  Tatsuo MIKAMI

IPC: H01F1/153 ,  C08F2/50 ,  C08L101/00 ,  C08K3/11

Abstract: The first object of the present invention is to provide a photosensitive resin composition with which a cured film that exhibits a high magnetic permeability real part μ′ and a low magnetic loss tan δ in the high frequency region can be formed. The second object of the present invention is to provide a cured film that is formed by using the photosensitive resin composition and to provide an inductor and an antenna that contain the cured film.
The photosensitive resin composition of the present invention contains a resin that has an ethylenic unsaturated group and a graft chain, or a resin that has a compound having an ethylenic unsaturated group and has a graft chain; an iron-containing particle of which an iron atom content is 10% by mass or more; and a polymerization initiator.

公开(公告)号：US20160284450A1

公开(公告)日：2016-09-29

申请号：US15079206

申请日：2016-03-24

Applicant: FUJIFILM Corporation

Inventor： Toshihide AOSHIMA ,  Reiko INUSHIMA ,  Mika IMAMURA ,  Tatsuo MIKAMI

IPC: H01F1/03

CPC classification number: G11B5/7013 ,  G11B5/7028 ,  G11B5/714

Abstract: The magnetic recording medium composition contains ferromagnetic powder, binder, and a crosslinkable component selected from the group consisting of a component capable of forming a crosslinking structure by a radical reaction, a component capable of forming a crosslinking structure by an ionic reaction, and a component capable of forming a crosslinking structure by a pericyclic reaction, wherein the crosslinkable component contains at least polyester, and the polyester has a weight average molecular weight ranging from 1,000 to 20,000, as well as contains, per molecule, one or more acidic groups, and one or more reactive groups selected from the group consisting of a radical reactive group, an ionic reactive group, and a pericyclic reactive group.

Abstract translation: 磁记录介质组合物含有铁磁性粉末，粘合剂和选自由能够通过自由基反应形成交联结构的组分，能够通过离子反应形成交联结构的组分的组分和可分离组分 能够通过周期性反应形成交联结构，其中所述可交联组分至少含有聚酯，所述聚酯的重均分子量为1,000至20,000，并且每分子含有一个或多个酸性基团，和 一个或多个选自自由基反应性基团，离子反应性基团和周期性反应性基团的反应性基团。

公开(公告)号：US20160093321A1

公开(公告)日：2016-03-31

申请号：US14869014

申请日：2015-09-29

Applicant: FUJIFILM CORPORATION

Inventor： Toshihide AOSHIMA ,  Wataru KIKUCHI ,  Kazutoshi KATAYAMA ,  Tatsuo MIKAMI

IPC: G11B5/65 ,  H01F1/42

CPC classification number: G11B5/7013

Abstract: The magnetic recording medium comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, and further comprises a compound denoted by Formula (1): wherein, in Formula (1), X denotes —O—, —S—, or NR1—; each of R and R1 independently denotes a hydrogen atom or a monovalent substituent; L denotes a divalent connecting group; Z denotes a partial structure of valence n comprising at least one group selected from the group consisting of carboxyl groups and carboxylate groups; m denotes an integer of greater than or equal to 2, and n denotes an integer of greater than or equal to 1.

Abstract translation: 磁性记录介质包括在非磁性载体上包含铁磁粉末和粘合剂的磁性层，并且还包含由式（1）表示的化合物：其中，在式（1）中，X表示-O - ， - S-或NR1 - ; R和R 1各自独立地表示氢原子或一价取代基; L表示二价连接基团; Z表示包含选自羧基和羧酸酯基的至少一个基团的价数n的部分结构; m表示大于或等于2的整数，n表示大于或等于1的整数。

公开(公告)号：US20160064024A1

公开(公告)日：2016-03-03

申请号：US14837184

申请日：2015-08-27

Applicant: FUJIFILM CORPORATION

Inventor： Tatsuo MIKAMI ,  Junpei ISHIDA ,  Wataru KIKUCHI

IPC: G11B5/708 ,  G11B5/71 ,  G11B5/73 ,  G11B5/735 ,  G11B5/733

CPC classification number: G11B5/708 ,  G11B5/71 ,  G11B5/733 ,  G11B5/735

Abstract: The magnetic tape comprises, on one surface of a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder, lubricant, and binder, comprises, on a surface of the nonmagnetic layer, a magnetic layer comprising magnetic powder, lubricant, and binder, and comprises, on the opposite surface of the nonmagnetic support from the surface on which the nonmagnetic layer and magnetic layer are present, a backcoat layer comprising nonmagnetic powder, lubricant, and binder, wherein the contact angle for water of a surface of the magnetic layer ranges from 95° to 100°, and the contact angle for water of a surface of the backcoat layer ranges from 95° to 100°.

Abstract translation: 该磁带在非磁性载体的一个表面上包括非磁性粉末，润滑剂和粘合剂的非磁性层，在非磁性层的表面上包括包含磁性粉末，润滑剂和粘合剂的磁性层， 在非磁性载体的表面上存在非磁性层和磁性层的相反表面上，包含非磁性粉末，润滑剂和粘结剂的背涂层，其中磁性层表面的水的接触角为95 °至100°，背涂层表面的水的接触角为95°至100°。