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公开(公告)号:US20210383826A1
公开(公告)日:2021-12-09
申请号:US17393404
申请日:2021-08-04
Applicant: FUJIFILM CORPORATION
Inventor: Eiki OZAWA , Michitaka KONDO , Kentaro MIYAMOTO , Naoki SANO
Abstract: An information processing device includes a generation unit that generates a hierarchy of a group that classifies each piece of data from information about each of a plurality of pieces of data to be recorded, and a control unit that controls recording of the plurality of pieces of data included in a group of the hierarchy at a highest level on a magnetic recording medium in a recording order according to an order from an upper hierarchy to a lower hierarchy, for each group of the hierarchy at the highest level. The magnetic recording medium has a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support. A difference between spacings S0.5 and S13.5 measured under pressures of 0.5 atm and 13.5 atm by an optical interference method after n-hexane cleaning on a surface of the magnetic layer is equal to or less than 3.0 nm.
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公开(公告)号:US20210090600A1
公开(公告)日:2021-03-25
申请号:US17022446
申请日:2020-09-16
Applicant: FUJIFILM Corporation
Inventor: Takuto KUROKAWA , Naoki SANO , Norihito KASADA , Eiki OZAWA , Megumi NAKANO
Abstract: The magnetic recording medium includes a non-magnetic support; a magnetic layer that includes ferromagnetic powder on one surface side of the non-magnetic support; and a back coating layer that includes non-magnetic powder on the other surface side of the non-magnetic support, in which a difference between a spacing measured on a surface of the back coating layer by optical interferometry under a pressure of 0.5 atm after n-hexane cleaning and a spacing measured on the surface of the back coating layer by optical interferometry under a pressure of 13.5 atm after n-hexane cleaning is 3 nm or less.
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公开(公告)号:US20160291211A1
公开(公告)日:2016-10-06
申请号:US15082730
申请日:2016-03-28
Applicant: FUJIFILM Corporation
Inventor: Aiko YOSHIDA , Naoya SHIMOJU , Naoki SANO , Nobutaka FUKAGAWA
CPC classification number: G02B1/14 , G02B5/3033
Abstract: A polarizing plate protective film contains a compound represented by general formula (II-1) or (II-2). In general formulas (II-1) and (II-2), X represents a 6-membered cyclic acetal group; n represents an integer of 2 or more; and a plurality of Xs may be identical or different. In general formula (II-1), Z2 represents a linking group having a valence of n; R1 represents a substituent, when there are a plurality of R1s, at least two of the plurality of R1s may be taken together to form a ring, R1s in different benzene rings may be taken together to form a single bond; m represents an integer of 0-4; and the plurality of R1s may be identical or different. In general formula (II-2), Z3 represents an alkylene group having a valence of n, provided that Z3 does not have a ring structure.
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公开(公告)号:US20210366509A1
公开(公告)日:2021-11-25
申请号:US17393415
申请日:2021-08-04
Applicant: FUJIFILM CORPORATION
Inventor: Eiki OZAWA , Michitaka KONDO , Kentaro MIYAMOTO , Naoki SANO
Abstract: An information processing device includes a recording unit that records a plurality of objects including data and metadata related to the data on a magnetic recording medium, and executes, after recording at least one of the objects, processing of recording first set data which is a set of the metadata included in the object. The first set data is the set of the metadata included in the object recorded after recording the first set data that is recorded immediately before. The magnetic recording medium has a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support. A difference between spacings S0.5 and S13.5 measured under pressures of 0.5 atm and 13.5 atm by an optical interference method after n-hexane cleaning on a surface of the magnetic layer is equal to or less than 3.0 nm.
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公开(公告)号:US20180329117A1
公开(公告)日:2018-11-15
申请号:US16038639
申请日:2018-07-18
Applicant: FUJIFILM Corporation
Inventor: Naoki SANO , Nobutaka FUKAGAWA , Akio TAMURA
IPC: G02B1/14 , C08K5/29 , C08K5/3462 , C08J5/18 , C08B3/06
CPC classification number: G02B1/14 , B32B7/02 , B32B23/14 , C08B3/06 , C08J5/18 , C08J2301/12 , C08K5/29 , C08K5/3462 , C08L1/10 , G02B5/30
Abstract: Provided are a polarizing plate including a polarizer and a polarizing plate protective film laminated on the polarizer, in which the polarizing plate protective film contains at least one compound represented by any one of General Formulas (1) to (3) and cellulose acylate; an image display device using the polarizing plate; and a polarizing plate protective film used for the polarizing plate, and R7—N═C═N—R8 General Formula (3) in which R1 to R8 represent a specific substituent.
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公开(公告)号:US20210090602A1
公开(公告)日:2021-03-25
申请号:US17025092
申请日:2020-09-18
Applicant: FUJIFILM Corporation
Inventor: Naoki SANO , Takuto KUROKAWA , Eiki OZAWA , Norihito KASADA , Megumi NAKANO
Abstract: The magnetic recording medium includes: a non-magnetic support; a magnetic layer that includes ferromagnetic powder on one surface side of the non-magnetic support; and a back coating layer that includes non-magnetic powder on the other surface side of the non-magnetic support, in which a difference between a spacing measured on a surface of the back coating layer by optical interferometry under a pressure of 0.5 atm after n-hexane cleaning and a spacing measured on the surface of the back coating layer by optical interferometry under a pressure of 13.5 atm after n-hexane cleaning is 12 nm or more.
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公开(公告)号:US20200279580A1
公开(公告)日:2020-09-03
申请号:US16802768
申请日:2020-02-27
Applicant: FUJIFILM Corporation
Inventor: Naoki SANO , Eiki OZAWA , Norihito KASADA , Takuto KUROKAWA
Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including ferromagnetic powder, in which a difference (S0.5−S13.5) between a spacing S0.5 measured on a surface of the magnetic layer by optical interferometry after n-hexane cleaning under a pressure of 0.5 atm and a spacing S13.5 measured on the surface of the magnetic layer by optical interferometry after n-hexane cleaning under a pressure of 13.5 atm is 9.0 nm or more.
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公开(公告)号:US20160291210A1
公开(公告)日:2016-10-06
申请号:US15082702
申请日:2016-03-28
Applicant: FUJIFILM Corporation
Inventor: Nobutaka FUKAGAWA , Naoki SANO , Mayumi NOJIRI , Aiko YOSHIDA , Naoya SHIMOJU
IPC: G02B1/14 , G02B1/08 , G02F1/1335 , G02B5/30
CPC classification number: G02B1/14 , G02B5/3033 , G02F1/133528 , G02F2201/50
Abstract: A polarizing plate of the present invention includes polarizing plate protective film(s) on one or both sides of a polarizer, wherein the polarizing plate protective film contains a compound represented by general formula (I) or (II) described below, the polarizer contains iodine, and the content of the iodine within the polarizer is 4.0 wt % or greater.
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公开(公告)号:US20210241792A1
公开(公告)日:2021-08-05
申请号:US17160535
申请日:2021-01-28
Applicant: FUJIFILM Corporation
Inventor: Takuto KUROKAWA , Naoki SANO , Norihito KASADA
Abstract: The magnetic tape in which a difference (S0.1−S1.6) between a spacing S0.1 and a spacing S1.6 obtained after n-hexane cleaning on a surface of the magnetic layer is equal to or less than 32 nm. The S0.1 is a value obtained as a spacing under a pressing force of 0.1 atm from a relational expression between a pressure and a spacing obtained by performing a spacing measurement on the surface of the magnetic layer by an optical interference method under a pressing force of each of a plurality of different pressures after the n-hexane cleaning, and S1.6 is a spacing measured on the surface of the magnetic layer by the optical interference method under the pressing force of 1.6 atm after the n-hexane cleaning.
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公开(公告)号:US20200090694A1
公开(公告)日:2020-03-19
申请号:US16569103
申请日:2019-09-12
Applicant: FUJIFILM Corporation
Inventor: Naoki SANO , Takuto Kurokawa , Norihito Kasada , Eiki Ozawa
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 a difference (S0.5−S13.5) between a spacing S0.5 measured by optical interferometry regarding a surface of the magnetic layer under a pressing force of 0.5 atm after n-hexane cleaning and a spacing S13.5 measured by optical interferometry regarding the surface of the magnetic layer under a pressing force of 13.5 atm after n-hexane cleaning is equal to or smaller than 3.0 nm, and a magnetic recording and reproducing device including this magnetic recording medium.
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