公开(公告)号：US20230302763A1

公开(公告)日：2023-09-28

申请号：US18327061

申请日：2023-06-01

Applicant: FUJIFILM CORPORATION

Inventor： Kyohisa UCHIUMI ,  Ren ISHIKAWA

IPC: B32B5/02 ,  B32B7/12

CPC classification number: B32B5/022 ,  B32B7/12 ,  B32B2250/03 ,  B32B2307/7265 ,  B32B2581/00 ,  B32B2264/025

Abstract: There is provided a film containing, in the following order, a base material, a permeation layer, and a water-absorbent polymer-containing layer, in which the water-absorbent polymer-containing layer is an outermost layer.

公开(公告)号：US20230142229A1

公开(公告)日：2023-05-11

申请号：US18152527

申请日：2023-01-10

Applicant: FUJIFILM Corporation

Inventor： Ren ISHIKAWA ,  Yuto MURATA

IPC: G11B21/10

CPC classification number: G11B21/103

Abstract: Provided is a magnetic tape device including: a magnetic head having a magnetic element that acts on a magnetic layer formed on a front surface of a magnetic tape; and a position adjusting actuator that adjusts a position of the magnetic element in a normal direction of the front surface by moving the magnetic head; and a processor that controls an operation of the position adjusting actuator.

公开(公告)号：US20230127017A1

公开(公告)日：2023-04-27

申请号：US18049313

申请日：2022-10-25

Applicant: FUJIFILM Corporation

Inventor： Ren ISHIKAWA

IPC: G11B5/008 ,  G11B5/31

Abstract: The magnetic tape drive includes: a first magnetic head that has a first magnetic element acting on a magnetic layer formed on a first surface of a magnetic tape; a first support member that is disposed at a position facing the first magnetic head with the magnetic tape interposed therebetween and faces a second surface which is a surface of the magnetic tape on a side opposite to the first surface; and an air membrane forming device that forms an air membrane between the magnetic tape and the first support member.

公开(公告)号：US20230039137A1

公开(公告)日：2023-02-09

申请号：US17815934

申请日：2022-07-28

Applicant: FUJIFILM CORPORATION

Inventor： Haruki TOMIKAWA ,  Toshihide YOSHITANI ,  Kyohisa UCHIUMI ,  Ren ISHIKAWA

IPC: B01J20/26 ,  B01J20/28 ,  B32B27/12

Abstract: Provided are a film and a water stopping tape that realize long-lasting water stopping properties. The film includes an outermost layer that contains a water-absorbent polymer and a fiber assembly and a substrate layer in this order, in which a degree of out-of-plane swelling of the outermost layer is higher than a degree of in-plane swelling of the outermost layer, and the water stopping tape includes the film.

公开(公告)号：US20230129110A1

公开(公告)日：2023-04-27

申请号：US18145821

申请日：2022-12-22

Applicant: FUJIFILM CORPORATION

Inventor： Toru NAKAO ,  Ren ISHIKAWA

IPC: G11B5/008 ,  G11B25/08

Abstract: Provided is a magnetic tape device including: a magnetic head having a magnetic element that acts on a magnetic layer formed on a front surface of a magnetic tape; and a guide member that is disposed at a position facing the magnetic head via the magnetic tape and guides the magnetic tape to the magnetic head, in which a back surface of the magnetic tape, which is provided on a side opposite to the front surface and is a surface coarser than the front surface, is slid on the guide member.

公开(公告)号：US20230050406A1

公开(公告)日：2023-02-16

申请号：US17815933

申请日：2022-07-28

Applicant: FUJIFILM CORPORATION

Inventor： Haruki TOMIKAWA ,  Toshihide YOSHITANI ,  Kyohisa UCHIUMI ,  Ren ISHIKAWA

IPC: C09J7/29 ,  B32B5/02 ,  B32B27/36 ,  B32B27/12 ,  B32B7/12

Abstract: Provided is a film and a water stopping tape that realize long-lasting water stopping properties. The film includes an outermost layer containing a water-absorbent polymer having a water absorbency of 5 g/g to 100 g/g that is represented by a ratio of a mass of a sample having been immersed in water for 3 hours to a mass of the sample not yet being immersed in water a permeable layer, and a substrate layer in this order, and the water stopping tape includes the film.

公开(公告)号：US20240038269A1

公开(公告)日：2024-02-01

申请号：US18349964

申请日：2023-07-11

Applicant: FUJIFILM CORPORATION

Inventor： Keisuke KOIKE ,  Ren ISHIKAWA

IPC: G11B23/04

CPC classification number: G11B23/042

Abstract: A magnetic tape cartridge includes a magnetic tape wound around a reel, in which the magnetic tape has a first region, which is a predetermined region influenced by a width change of the magnetic tape accompanied by deformation of the reel due to winding of the magnetic tape, and a second region, which is a region on an outer peripheral side of the reel with respect to the first region, and regarding a degree of elongation in a longitudinal direction of the magnetic tape, the degree of the first region is equal to or larger than the degree of the second region.

公开(公告)号：US20240005954A1

公开(公告)日：2024-01-04

申请号：US18341769

申请日：2023-06-27

Applicant: FUJIFILM CORPORATION

Inventor： Ren ISHIKAWA

IPC: G11B5/55

CPC classification number: G11B5/5508

Abstract: A tape reel includes a hub that has a cylindrical shape and around which a tape is wound, and a reinforcing member provided on an inner peripheral side of the hub, in which the reinforcing member includes a shaft member having a longitudinal direction along a central axis direction of the hub, and a plurality of ribs that are provided along the longitudinal direction and have an annular shape that extends from an outer peripheral surface of the shaft member toward an inner peripheral surface of the hub, and the plurality of ribs include a first rib provided in a central region in the longitudinal direction.