公开(公告)号：US11138998B2

公开(公告)日：2021-10-05

申请号：US16360758

申请日：2019-03-21

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Masatoshi Yumoto ,  Takashi Imai

IPC: G11B5/70 ,  G11B5/706 ,  G11B5/702 ,  G11B5/714

Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer further includes a compound including a polyalkyleneimine chain and a vinyl polymer chain. The composition for a magnetic recording medium includes: ferromagnetic powder; and a compound including a polyalkyleneimine chain and a vinyl polymer chain.

公开(公告)号：US10391803B2

公开(公告)日：2019-08-27

申请号：US15938421

申请日：2018-03-28

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Yuji Yoshida

IPC: B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  D21H27/00 ,  D21H19/56 ,  D21H19/12 ,  D21H21/16

Abstract: An image recording paper medium containing a resin having a constitutional unit represented by General Formula (1) and a constitutional unit represented by General Formula (2-1) and/or a constitutional unit represented by General Formula (2-2), in which in the resin, a content of the constitutional unit represented by General Formula (1) is 30% to 96% by mass, and a total content of the constitutional unit represented by General Formula (2-1) and the constitutional unit represented by General Formula (2-2) is 4% to 70% by mass. Also provided are a manufacturing method of the image recording paper medium and an image recording method including the manufacturing method: where R1, L1, R2, R3, L2, M1 and M2 are as defined herein.

公开(公告)号：US09984711B2

公开(公告)日：2018-05-29

申请号：US14869014

申请日：2015-09-29

Applicant: FUJIFILM CORPORATION

Inventor： Toshihide Aoshima ,  Wataru Kikuchi ,  Kazutoshi Katayama ,  Tatsuo Mikami

IPC: G11B5/708 ,  G11B5/70

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.

公开(公告)号：US11276429B2

公开(公告)日：2022-03-15

申请号：US16830752

申请日：2020-03-26

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  So Matsuyama

IPC: G11B5/71 ,  G11B5/78 ,  G11B5/733 ,  G11B5/706 ,  G11B5/702 ,  G11B5/708 ,  G11B5/735

Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including ferromagnetic powder, in which the magnetic layer includes a compound having a salt structure, and the salt structure is an ammonium salt structure of an alkyl ester anion represented by the following Formula 1. In Formula 1, R represents an alkyl group having 7 or more carbon atoms or a fluorinated alkyl group having 7 or more carbon atoms, Z+ represents an ammonium cation, and a water contact angle on a surface of the magnetic layer is 80° or more and less than 100°. A magnetic recording and reproducing apparatus includes the magnetic recording medium.

公开(公告)号：US09920083B2

公开(公告)日：2018-03-20

申请号：US15019578

申请日：2016-02-09

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Yuji Yoshida ,  Ryuji Shinohara

IPC: C07F9/38 ,  C09D5/00 ,  B41M5/52 ,  B41M7/00 ,  C07F9/11 ,  C07F9/113 ,  C07F9/12

CPC classification number: C07F9/3808 ,  B41M5/5227 ,  B41M7/009 ,  C07F9/11 ,  C07F9/113 ,  C07F9/12 ,  C07F9/3834 ,  C07F9/3843 ,  C09D5/002 ,  D21H19/36

Abstract: The image recording paper medium contains at least one kind of organic phosphorus compound selected from an organic phosphonic acid represented by the following Formula (1), a salt thereof, an organic phosphoric acid represented by the following Formula (2), and a salt thereof. In the formulae, each of R1 and R2 independently represents an unsubstituted alkyl group, an unsubstituted cycloalkyl group, an unsubstituted alkenyl group, or an aryl group.

公开(公告)号：US09889695B2

公开(公告)日：2018-02-13

申请号：US15460470

申请日：2017-03-16

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Yuji Yoshida ,  Seiya Sakurai ,  Ryuji Shinohara

IPC: B41M5/52

CPC classification number: B41M5/52 ,  B41M5/0017 ,  B41M5/5218 ,  B41M7/009

Abstract: The image recording method includes the following steps (a) to (c): (a) forming a barrier layer on a recording medium by using a solution which contains an acidic group-containing polymer in a nonaqueous medium; (b) forming an organic acid-containing layer on the barrier layer; and (c) forming an image by jetting an aqueous ink onto the organic acid-containing layer by an ink jet method.

公开(公告)号：US11670334B2

公开(公告)日：2023-06-06

申请号：US17394567

申请日：2021-08-05

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Masatoshi Yumoto ,  Takashi Imai

IPC: G11B5/706 ,  G11B5/702 ,  G11B5/714 ,  G11B5/70

CPC classification number: G11B5/70678 ,  G11B5/7013 ,  G11B5/7023 ,  G11B5/7028 ,  G11B5/714

Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer further includes a compound including a polyalkyleneimine chain and a vinyl polymer chain. The composition for a magnetic recording medium includes: ferromagnetic powder; and a compound including a polyalkyleneimine chain and a vinyl polymer chain.

公开(公告)号：US09761261B2

公开(公告)日：2017-09-12

申请号：US14673144

申请日：2015-03-30

Applicant: FUJIFILM Corporation

Inventor： Toshihide Aoshima ,  Wataru Kikuchi ,  Kazutoshi Katayama ,  Tatsuo Mikami

IPC: G11B5/708 ,  G11B5/702 ,  G11B5/714 ,  G11B5/70

CPC classification number: G11B5/7021 ,  G11B5/7013 ,  G11B5/7023 ,  G11B5/714

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), A1 denotes a monovalent polymer group, each of R1 and R2 independently denotes a single bond or a divalent connecting group, R11 denotes a hydrogen atom or a monovalent substituent, m denotes an integer of equal to or greater than 2, multiple instances of R1, R2, A1, and R11 that are present can be identical or different, A2 denotes a hydrogen atom or a monovalent substituent denoted by —OR3—Z, R3 denotes a single bond or a divalent connecting group, Z denotes a monovalent acid group, among multiple instances of A2 that are present, at least one denotes a monovalent group denoted by —O—R3—Z, and X denotes a connecting group of valence m.

公开(公告)号：US09562167B2

公开(公告)日：2017-02-07

申请号：US14673205

申请日：2015-03-30

Applicant: FUJIFILM Corporation

Inventor： Wataru Kikuchi ,  Toshihide Aoshima ,  Kazutoshi Katayama ,  Tatsuo Mikami

IPC: G11B5/708 ,  C09D127/06 ,  G11B5/70 ,  G11B5/714 ,  C08G18/79 ,  C08G18/42

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：US08728708B2

公开(公告)日：2014-05-20

申请号：US13779419

申请日：2013-02-27

Applicant: Fujifilm Corporation

Inventor： Kyouhei Sakita ,  Wataru Kikuchi ,  Masatoshi Yumoto ,  Masanori Hikita

IPC: G03F7/00 ,  G03F7/004 ,  G03F7/029 ,  C07D495/00 ,  C07D307/92

CPC classification number: C07D307/78 ,  C07C309/00 ,  C07C2602/08 ,  C07C2603/16 ,  C07C2603/18 ,  C07D307/92 ,  C07D335/06 ,  C07D335/08 ,  G02F1/133345 ,  G02F1/136227 ,  G02F2202/02 ,  G03F7/0045 ,  G03F7/0046 ,  G03F7/0392 ,  G03F7/0397 ,  G03F7/40 ,  H01L27/3258 ,  H05B33/22

Abstract: Disclosed is a photosensitive resin composition comprising: (Component A) an oxime sulfonate compound represented by Formula (1); (Component B) a resin comprising a constituent unit having an acid-decomposable group that is decomposed by an acid to form a carboxyl group or a phenolic hydroxy group; and (Component C) a solvent wherein in Formula (1) R1 denotes an alkyl group, an aryl group, or a heteroaryl group, each R2 independently denotes a hydrogen atom, an alkyl group, an aryl group, or a halogen atom, Ar1 denotes an o-arylene group or an o-heteroarylene group, X denotes O or S, and n denotes 1 or 2, provided that of two or more R2s present in the compound, at least one denotes an alkyl group, an aryl group, or a halogen atom.

Abstract translation: 公开了一种光敏树脂组合物，其包含：（组分A）由式（1）表示的肟磺酸盐化合物; （B成分）具有酸分解成羧酸或酚羟基的具有酸分解性基团的构成单元的树脂; 和（组分C）其中在式（1）中的R 1表示烷基，芳基或杂芳基的溶剂，每个R 2独立地表示氢原子，烷基，芳基或卤素原子，Ar 1 表示邻亚芳基或邻亚芳基，X表示O或S，n表示1或2，条件是化合物中存在两个或多个R 2，至少1表示烷基，芳基， 或卤素原子。