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公开(公告)号：US20170123266A1
公开(公告)日：2017-05-04
申请号：US15341101
申请日：2016-11-02
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Kota Nakai , Naotaka Higuchi , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Youichirou Sugino , Keisuke Kimura
CPC classification number: G02F1/133528 , B29D11/00644 , B32B3/266 , B32B7/12 , B32B37/12 , B32B37/14 , B32B2307/42 , G02B5/30 , G02B5/3025 , G02B5/3033 , G02B5/3041 , G02B5/305 , G02F2001/133541 , G02F2202/28
Abstract: There is provided a polarizing plate which is imparted durability. A polarizing plats with a pressure-sensitive adhesive, layer according to an embodiment of the present invention includes: a polarizing plate including a polarizer and a protective film arranged on at least one side of the polarizer; and a pressure-sensitive adhesive layer formed on at least one surface of the polarizing plate, wherein in the surface of the polarizing plate where the pressure-sensitive adhesive layer is formed, a non-contact portion that is out of contact with the pressure-sensitive adhesive layer is formed in an end portion of the polarizing plate.
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公开(公告)号：US20220315472A1
公开(公告)日：2022-10-06
申请号：US17627543
申请日：2020-02-19
Applicant: NITTO DENKO CORPORATION
Inventor： Toshihiro Kanno , Satoshi Hirata , Kota Nakai , Naoyuki Matsuo
IPC: C03B33/02 , C03B33/07 , C03B33/033 , C03B33/09 , B23K26/364 , B23K26/402 , B23K26/0622 , B23K26/53
Abstract: A method is disclosed for dividing a composite material in which a brittle material layer and a resin layer are laminated, including: a resin removing step of irradiating the resin layer with a laser beam oscillated from a first laser source along a scheduled dividing line of the composite material to form a processing groove along the scheduled dividing line; a brittle material removing step of irradiating the brittle material layer with a laser beam oscillated from an ultrashort pulsed laser source along the scheduled dividing line to form a processing mark along the scheduled dividing line; and a brittle material layer dividing step of generating thermal stress in the brittle material layer by irradiating the brittle material layer with a laser beam oscillated from a second laser source from the opposite side to the resin layer to thereby divide the brittle material layer.
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公开(公告)号：US11385391B2
公开(公告)日：2022-07-12
申请号：US16935468
申请日：2020-07-22
Applicant: NITTO DENKO CORPORATION
Inventor： Masahiro Yaegashi , Daisuke Ogomi , Yuki Nakano , Yuji Saiki , Kota Nakai
IPC: G02B5/30 , B32B27/16 , B32B23/20 , B32B27/34 , B29D11/00 , B32B27/32 , B32B3/30 , B32B27/30 , B32B27/20 , B32B27/36 , B32B7/06 , B32B27/08 , B32B23/08 , B32B3/26 , G02B1/14 , B32B7/12 , H01L51/52 , G02F1/1335 , G02F1/13363
Abstract: A long polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizer according to an embodiment includes a long resin film containing a dichromatic substance, the polarizer having non-polarization portions arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, the non-polarization portions including decolored portions formed through partial decoloring.
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公开(公告)号：US10960610B2
公开(公告)日：2021-03-30
申请号：US16345010
申请日：2017-10-20
Applicant: NITTO DENKO CORPORATION
Inventor： Junichi Inagaki , Takeshi Murashige , Kazuhito Hosokawa , Toshihiro Kanno , Kota Nakai
Abstract: Provided is a production method for a film laminate by which a tough film can be bonded to a brittle film while the breakage of the brittle film is prevented. The production method for a film laminate of the present invention includes bonding a tough film having an elongated shape to a brittle film having an elongated shape while conveying the brittle film, wherein the method includes bonding the tough film and the brittle film to each other by bringing the tough film close to the brittle film, followed by blowing of a gas from a side of the tough film opposite to the brittle film.
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公开(公告)号：US10914868B2
公开(公告)日：2021-02-09
申请号：US16676660
申请日：2019-11-07
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Naotaka Higuchi , Kota Nakai , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Keisuke Kimura
IPC: G02B1/14 , G02B5/30 , B32B27/08 , B32B27/16 , B32B23/08 , B32B3/02 , B32B3/26 , B32B38/00 , B32B7/12 , B32B27/30 , B32B38/04
Abstract: A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate (100) according to an embodiment of the present invention includes: a polarizer (10); and a protective film (21 and 22) arranged on at least one side of the polarizer (10). The polarizing plate (100) has a dimensional change ratio of −0.2% or more in a transmission axis direction thereof when the polarizing plate (100) cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate (100) bonded to the glass plate is left to stand under an atmosphere at −40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.
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Patent Agency Ranking
公开(公告)号：US20190168317A1
公开(公告)日：2019-06-06
申请号：US16309000
申请日：2018-03-23
Applicant: NITTO DENKO CORPORATION
Inventor： Toshihiro Kanno , Kota Nakai , Takeshi Murashige
Abstract: There is provided a method by which a glass plate and an optical functional film can be integrally subjected to machining processing without the occurrence of any inconvenience. A production method for an optical laminate according to the present invention includes: laminating a glass plate and an optical functional film to form an optical laminate; superimposing a plurality of the optical laminates to form a workpiece; and relatively moving the workpiece and machining means, which includes a rotating shaft extending in a lamination direction of the workpiece and a machining blade formed as an outermost diameter of a main body configured to rotate about the rotating shaft, while rotating the machining means, to subject outer peripheral surfaces of the workpiece to machining processing. In the method, a feed per blade in the machining processing is from 5 μm/blade to 30 μm/blade.
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17.发明授权公开(公告)号：US10215900B2
公开(公告)日：2019-02-26
申请号：US15321875
申请日：2015-06-26
Applicant: NITTO DENKO CORPORATION
Inventor： Masahiro Yaegashi , Daisuke Ogomi , Yuki Nakano , Yuji Saiki , Kota Nakai
IPC: G02B5/30 , B32B7/02 , G09F9/00 , G02B1/14 , B32B3/26 , B32B3/30 , B32B7/06 , B32B7/12 , B32B27/08 , B32B27/20 , B32B27/30 , B32B27/32 , B32B27/34 , B32B27/36 , H01L51/52 , B29D11/00 , G02F1/1335
Abstract: A long polarizing film laminate capable of producing a polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizing film laminate according to an embodiment of the present invention includes: a long polarizer; and a surface protective film arranged on one surface side of the polarizer. The polarizing film laminate has, on the one surface side, exposed portions where the polarizer is exposed. The exposed portions are arranged in a lengthwise direction and/or a widthwise direction of the polarizer at predetermined intervals.
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公开(公告)号：US20180011233A1
公开(公告)日：2018-01-11
申请号：US15545766
申请日：2016-03-10
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Kota Nakai , Naotaka Higuchi , Keisuke Kimura , Yoshitsugu Kitamura , Hiroki Kuramoto
CPC classification number: G02B5/305 , B29D11/00644 , C08J3/24 , C08J5/18 , C08J2329/04 , G02B1/08 , G02B1/14 , G02B5/3033
Abstract: There is provided a polarizer excellent in durability. A polarizer according to one embodiment of the present invention includes a resin film containing boric acid, wherein the resin film has a low-concentration portion, which contains a lower concentration of the boric acid than that in any other site, formed in an end portion thereof.
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公开(公告)号：US20170137671A1
公开(公告)日：2017-05-18
申请号：US15322258
申请日：2015-06-26
Applicant: NITTO DENKO CORPORATION
Inventor： Daisuke Ogomi , Masahiro Yaegashi , Yuki Nakano , Kota Nakai , Yuki Ose
Abstract: A long pressure-sensitive adhesive film, that can be suitably used as a surface protective film or mask at the time of the treatment of a predetermined portion of a long film. A pressure-sensitive adhesive film including a long resin film; and a pressure-sensitive adhesive layer arranged on one surface of the resin film. The pressure-sensitive adhesive film has through-holes that are arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, and that penetrate the resin film and the pressure-sensitive adhesive layer integrally.
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公开(公告)号：US20230256727A1
公开(公告)日：2023-08-17
申请号：US18024381
申请日：2021-04-19
Applicant: NITTO DENKO CORPORATION
Inventor： Toshihiro Kanno , Satoshi Hirata , Kota Nakai , Takeshi Murashige , Junichi Inagaki
CPC classification number: B32B43/006 , B32B17/10 , B32B2310/0843 , B32B2307/538 , B32B2307/546
Abstract: A method is disclosed for dividing a composite material 10 including a brittle material layer 1 and a resin layer 2 that are laminated together, the method includes: a resin removing step of applying laser light L1 oscillated from a CO2 laser light source 20 to the resin layer along a planned division line DL of the composite material, so that a processed groove 24 is formed along the planned division line; and a brittle material removing step of applying, after the resin removing step, laser light L2 oscillated from an ultrashort pulsed laser light source 30 to the brittle material layer along the planned division line, so that processed marks 11 are formed along the planned division line. The processed marks formed in the brittle material removing step open on the resin layer side and do not penetrate through the brittle material layer.
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