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公开(公告)号：US20220238785A1
公开(公告)日：2022-07-28
申请号：US17720499
申请日：2022-04-14
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Teruo ASHIKAWA , Kazuo HIRAGUCHI
IPC: H01L41/053 , H01L41/047 , H01L41/18 , H01L41/23 , H04R17/00
Abstract: Provided is a piezoelectric element capable of reliably performing an electrical connection to an electrode layer. A piezoelectric element includes a piezoelectric layer, electrode layers formed on both sides of the piezoelectric layer, and a protective layer laminated on a surface of the electrode layer opposite to a surface on the polymer composite piezoelectric body side. The protective layer has a hole that penetrates from the surface to the electrode layer. The piezoelectric element further includes a filling member consisting of a conductive material, which is formed from the inside of the hole to a part of a surface of the protective layer and is electrically connected to the electrode layer, a conductive member which covers at least a part of the filling member and is electrically connected to the filling member, and a fixing member for fixing the conductive member.
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公开(公告)号：US20200312366A1
公开(公告)日：2020-10-01
申请号：US16812374
申请日：2020-03-09
Applicant: FUJIFILM CORPORATION
Inventor： Yusuke KAGAWA , Tetsuya KANEKO
IPC: G11B15/087 , G11B33/04 , G11B5/008
Abstract: A recording and reproducing device includes: a first acquisition unit which acquires servo band interval information representing an interval, in a width direction of a magnetic tape, between adjacent servo recording elements of plural servo recording elements which record the servo patterns on the plural servo bands, respectively; a second acquisition unit which acquires reproducing element interval information representing an interval in the width direction between respective servo reproducing elements which read the adjacent servo patterns along the width direction with respect to the plural tape drives; and a selection unit which selects a tape drive into which the magnetic tape is inserted, from the plural tape drives, using a value representing a difference between the interval represented by the servo band interval information and the interval represented by the reproducing element interval information.
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公开(公告)号：US20200243111A1
公开(公告)日：2020-07-30
申请号：US16849154
申请日：2020-04-15
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Norihito KASADA , Yuto MURATA
IPC: G11B5/78 , G11B5/73 , G11B5/735 , G11B5/70 , G11B23/107
Abstract: Provided is a magnetic tape cartridge of a single reel type in which a magnetic tape is wound around a reel, in which the magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, a tape thickness is equal to or smaller than 5.2 μm, a tape width difference (B−A) between a tape width A at a position of 10 m±1 m from a tape outer end and a tape width B at a position of 50 m±1 m from a tape inner end is 2.4 μm to 12.0 μm, and the tape width A and the tape width B are values measured 100 days from the date of magnetic tape cartridge manufacture.
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公开(公告)号：US20190259417A1
公开(公告)日：2019-08-22
申请号：US16281169
申请日：2019-02-21
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Norihito Kasada , Yuto Murata
Abstract: Provided is a magnetic tape cartridge of a single reel type in which a magnetic tape is wound around a reel, in which the magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, a tape thickness is equal to or smaller than 5.2 a tape width difference (B−A) between a tape width A at a position of 10 m±1 m from a tape outer end and a tape width B at a position of 50 m±1 m from a tape inner end is 2.4 μm to 12.0 μm, and the tape width A and the tape width B are values measured 100 days from the date of magnetic tape cartridge manufacture.
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公开(公告)号：US20180232619A1
公开(公告)日：2018-08-16
申请号：US15835470
申请日：2017-12-08
Applicant: FUJIFILM CORPORATION
Inventor： Yusuke KAGAWA
CPC classification number: G06K19/08 , G06K19/06028 , G06K19/0723
Abstract: A recording system includes: a reading part that reads information recorded on a first recording medium that is provided at a predetermined position on an outer circumferential surface of a recording tape cartridge, the information being visually recognizable from the outside; and a recording part that records the information read by the reading part on a second recording medium that is provided in the recording tape cartridge, of which recorded information is readable in a non-contact manner, in a case where the recording tape cartridge is first accessed.
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Patent Agency Ranking
公开(公告)号：US20170081073A1
公开(公告)日：2017-03-23
申请号：US15215611
申请日：2016-07-21
Applicant: FUJIFILM CORPORATION
Inventor： Yusuke KAGAWA , Nobuyuki KIMOTO
CPC classification number: B65D5/5415 , B65D5/5405 , B65D5/6608
Abstract: A wraparound case comprises: a case main body including a top face panel and a bottom face panel that face each other, a front face panel and a back face panel that face each other, a pair of side face panels that face each other, and an insertion flap that extends out from the top face panel and overlaps with the front face panel; a hinge section that is formed between the top face panel and the back face panel; a slit that is formed along a ridgeline between the top face panel and each of the pair of side face panels; and tear sections that couple a front face panel side and a back face panel side of the top face panel with the pair of side face panels, and that are torn when the top face panel is opened.
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公开(公告)号：US20230413674A1
公开(公告)日：2023-12-21
申请号：US18461900
申请日：2023-09-06
Applicant: FUJIFILM Corporation
Inventor： Tetsu MIYOSHI , Yusuke KAGAWA
IPC: H10N30/05 , H10N30/85 , H10N30/00 , H10N30/072 , H10N30/87
CPC classification number: H10N30/05 , H10N30/85 , H10N30/1051 , H10N30/072 , H10N30/871
Abstract: Provided is a laminated piezoelectric element capable of suppressing heat generation while maintaining satisfactory piezoelectric characteristics. The laminated piezoelectric element is a laminated piezoelectric element including a piezoelectric film, in which the laminated piezoelectric element is obtained by laminating a plurality of layers of piezoelectric films each including a piezoelectric layer containing a polymer-based piezoelectric composite material that contains piezoelectric particles in a matrix containing a polymer material, and electrode layers formed on both surfaces of the piezoelectric layer, and in a case where a value obtained by dividing a capacitive reactance Xc of the piezoelectric film at a frequency of 1 kHz by an equivalent series resistance ESR is set to 1, a value XE20 obtained by dividing the capacitive reactance Xc at a frequency of 20 kHz by the equivalent series resistance ESR is in a range of 0.6 to 1.5.
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公开(公告)号：US20230363284A1
公开(公告)日：2023-11-09
申请号：US18347727
申请日：2023-07-06
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Tomoko Tahara
IPC: H10N30/88 , H10N30/87 , H10N30/857
CPC classification number: H10N30/883 , H10N30/875 , H10N30/857
Abstract: An object of the present invention is to provide a piezoelectric film including an electrode layer on each of both surfaces of a piezoelectric layer, and a protective layer provided on the surface of the electrode layer and having a low connection resistance between the electrode layer and a lead wire. The object is achieved by providing the piezoelectric film including a piezoelectric layer, an electrode layer provided on each of both surfaces of the piezoelectric layer, a protective layer provided to cover the electrode layer and having through-holes, a conductive filling member with which the through-holes are filled, and a lead wire provided in contact with the filling member, in which in at least one of the lead wires, in a case where a length of a region in contact with the filling member in a plane direction is defined as A, and a length of the surface with respect to the length A in the plane direction is defined as B, B/A is 1.5 or greater.
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公开(公告)号：US20230007400A1
公开(公告)日：2023-01-05
申请号：US17943801
申请日：2022-09-13
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Teruo ASHIKAWA , Kazuo HIRAGUCHI
Abstract: Provided is a laminated piezoelectric element capable of suppressing a short circuit between piezoelectric films in a laminated piezoelectric element in which a plurality of layers of a piezoelectric film formed by interposing a piezoelectric layer between an electrode layer and a protective layer are laminated. The laminated piezoelectric element is formed by laminating a plurality of layers of piezoelectric films each having a piezoelectric layer, two electrode layers between which the piezoelectric layer is interposed, and two protective layers respectively covering the electrode layers. At least a part of each end side of the adjacent piezoelectric films is located at a different position in a plane direction.
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公开(公告)号：US20220279283A1
公开(公告)日：2022-09-01
申请号：US17741776
申请日：2022-05-11
Applicant: FUJIFILM Corporation
Inventor： Yusuke KAGAWA , Kazuo HIRAGUCHI
IPC: H04R17/00
Abstract: Provided is a piezoelectric element, of which thickness can be thin and uniform, and in which winding failure hardly occurs during manufacturing and deformation of the thin film electrode is unlikely to occur.
A piezoelectric element includes a piezoelectric layer, electrode layers formed on both sides of the piezoelectric layer, and a protective layer laminated on a surface of the electrode layer opposite to a surface on the piezoelectric layer side, in which the electrode layer has an exposed portion where the piezoelectric layer is not formed at least at a part of an end portion, and the piezoelectric layer has a gradually decreasing portion of which thickness gradually decreases toward the exposed portion in the end portion adjacent to the exposed portion.
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