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公开(公告)号：DE60001085D1
公开(公告)日：2003-02-06
申请号：DE60001085
申请日：2000-06-14
Applicant: TORAY INDUSTRIES
Inventor： IWAISAKI YOKO , MORIGUCHI ISAMU , SATO MAKOTO , ONISHI KEITARO
Abstract: An object of the invention is to provide a plastic film that is inapt to cause winding deviation, wrinkling and blocking even under a high-speed running condition. The invention provides a plastic film wherein at least 1,000 positive electrified patterns and at least 1,000 negatively electrified patterns each having an area of at most 10 mm and an arbitrary shape are distributed per 100 cm of the film, and a polypropylene film wherein the static friction coefficient mu s between one surface of the film and another surface of the film is at least 0.2, and the dynamic friction coefficient mu d therebetween is at least 0.08. The invention also provides a production method for plastic film, wherein at least one film surface is subjected to at least one corona treating process, and a discharge degree of a last-performed corona treating process is at most 4W/cm .
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公开(公告)号：AT518226T
公开(公告)日：2011-08-15
申请号：AT06810366
申请日：2006-09-21
Applicant: TORAY INDUSTRIES
Inventor： HORIE MASATO , SATO MAKOTO , HIGASHIOJI TAKUJI , NAKAMORI YUKARI , WATANABE HIROAKI
Abstract: [Problem to be solved] To provide a substrate excellent in dimensional stability and crack resistance and capable of being used to produce a high density magnetic recording medium little dimensionally changing under environmental changes and small in error rate. [Solution] A magnetic recording medium substrate comprising a polyester film having metallic oxide-containing layers (layers M) formed on both the surfaces, one layer on each surface, the layers M having a thickness of 50 to 200 nm each, characterized in that the magnetic recording medium substrate has a total light transmittance of 0 to 75% and a surface resistivity of 1 x 10 2 to 1 x 10 13 © on each surface.
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公开(公告)号：DE60001085T2
公开(公告)日：2003-09-25
申请号：DE60001085
申请日：2000-06-14
Applicant: TORAY INDUSTRIES
Inventor： IWAISAKI YOKO , MORIGUCHI ISAMU , SATO MAKOTO , ONISHI KEITARO
Abstract: An object of the invention is to provide a plastic film that is inapt to cause winding deviation, wrinkling and blocking even under a high-speed running condition. The invention provides a plastic film wherein at least 1,000 positive electrified patterns and at least 1,000 negatively electrified patterns each having an area of at most 10 mm and an arbitrary shape are distributed per 100 cm of the film, and a polypropylene film wherein the static friction coefficient mu s between one surface of the film and another surface of the film is at least 0.2, and the dynamic friction coefficient mu d therebetween is at least 0.08. The invention also provides a production method for plastic film, wherein at least one film surface is subjected to at least one corona treating process, and a discharge degree of a last-performed corona treating process is at most 4W/cm .
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公开(公告)号：EP1936610A4
公开(公告)日：2008-10-01
申请号：EP06810366
申请日：2006-09-21
Applicant: TORAY INDUSTRIES
Inventor： HORIE MASATO , SATO MAKOTO , HIGASHIOJI TAKUJI , NAKAMORI YUKARI , WATANABE HIROAKI
CPC classification number: G11B5/7305
Abstract: [Problem to be solved] To provide a substrate excellent in dimensional stability and crack resistance and capable of being used to produce a high density magnetic recording medium little dimensionally changing under environmental changes and small in error rate. [Solution] A magnetic recording medium substrate comprising a polyester film having metallic oxide-containing layers (layers M) formed on both the surfaces, one layer on each surface, the layers M having a thickness of 50 to 200 nm each, characterized in that the magnetic recording medium substrate has a total light transmittance of 0 to 75% and a surface resistivity of 1 x 10 2 to 1 x 10 13 © on each surface.
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公开(公告)号：JP2020116942A
公开(公告)日：2020-08-06
申请号：JP2019231575
申请日：2019-12-23
Applicant: TORAY INDUSTRIES
Inventor： YOSHIOKA TADASHI , KAMIBAYASHI HIROYUKI , SATO MAKOTO
Abstract: 【課題】フレキシブル性が良好であり、より高いガスバリア性を有する積層体を提供する。【解決手段】高分子基材の少なくとも一方の側に、A層及びB層をこの順に有する積層体であって、前記A層は、ケイ素化合物を含み、A層のX線光電子分光法により測定される炭素(C)原子濃度が0.3〜15.0atom%であり、前記B層は、亜鉛酸化物を含み、前記A層及び前記B層が接していることを特徴とする、積層体。【選択図】図1
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Patent Agency Ranking
公开(公告)号：JP2002179822A
公开(公告)日：2002-06-26
申请号：JP2001300157
申请日：2001-09-28
Applicant: TORAY INDUSTRIES
Inventor： ICHINOMIYA TAKASHI , MORIOKA SATOKO , SATO MAKOTO
Abstract: PROBLEM TO BE SOLVED: To provide a film roll form having high film-film contact firmness, especially excellent as an original film for vapor deposition because of no film- film slippage when subjected to vacuum suction on a vapor deposition machine, thus suitably usable in wide applications including magnetic tapes, packaging materials and capacitors. SOLUTION: This film roll form is so designed that at least part of the transverse direction of the film wound in the form of a roll is provided with electrification-treated portion(s)
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公开(公告)号：JP2001262463A
公开(公告)日：2001-09-26
申请号：JP2000070087
申请日：2000-03-14
Applicant: TORAY INDUSTRIES
Inventor： SATO MAKOTO , FUKUSHIMA KAZUHIRO , NISHIURA EIICHI
Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for producing an electret fiber sheet scarcely causing a trouble by spark discharge and excellent in durability and maintainability. SOLUTION: In this method for producing an electret fiber sheet by interposing a fiber sheet between a noncontact type voltage applying electrode and an earth electrode which are opposed to each other and applying electric current therebetween to convert the fiber sheet into the electrets, plural resistance layers having different volume resistivities are laminated and attached onto the above earth electrode and the fiber sheet to be treated is brought into contact with the upper surface of the laminated resistive layer to convert the fiber sheet into the electrets. In this apparatus for producing an electret fiber sheet by interposing a fiber sheet between a noncontact type applied electrode and an earth electrode which are opposed and applying electric current therebetween to convert the fiber sheet into elecrets, plural resistive layers having different volume resistivities and laminated onto the above earth electrode to constitute an earth electrode part so that volume resistivity of resistive layer of surface layer among the above plural resistive layers is 10-1 to 108 Ω.cm and resistance value per unit area of laminated whole resistive layer is 102 to 1010 Ω.cm2.
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公开(公告)号：JP2002126504A
公开(公告)日：2002-05-08
申请号：JP2000320566
申请日：2000-10-20
Applicant: TORAY INDUSTRIES
Inventor： SATO MAKOTO , MORIOKA SATOKO
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a base material having a thin film, in which sparkelike discharge caused in a reeling-out part or a reeling part of the rolled base material is inhibited by simple constitution and damage to the base material, deterioration of film quality and trouble of an installation are difficult to be caused. SOLUTION: Gas is supplied to a reeling-out part and/or a reeling part of the rolled base material and the feed rate of gas is controlled so that pressure (P) in the blowing part of the gas is controlled so that pressure (P) in the blowing part of the gas becomes 1
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公开(公告)号：JP2001059033A
公开(公告)日：2001-03-06
申请号：JP2000178149
申请日：2000-06-14
Applicant: TORAY INDUSTRIES
Inventor： IWAISAKI YOKO , MORIGUCHI ISAMU , SATO MAKOTO , ONISHI KEITARO
Abstract: PROBLEM TO BE SOLVED: To obtain a plastic film hardly causing telescoping, waving and blocking even in a high-speed winding. SOLUTION: In this film subjected to corona discharge treatment on one side, the surface of the film is provided with >=1,000 positive electrification patterns of arbitrary shape having =1,000 negative electrification pattern having =0.20 coefficient of static friction μs between the corona discharge treatment side and the other side and >=0.08 dynamic coefficient of friction μd.
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公开(公告)号：JPH09196630A
公开(公告)日：1997-07-31
申请号：JP2316396
申请日：1996-01-16
Applicant: TORAY INDUSTRIES
Inventor： KAWAMURA AKINORI , HAYASHI MUTSUMI , SATO MAKOTO
Abstract: PROBLEM TO BE SOLVED: To enable measurement of various optical constants of a thin film formed on a substrate or the surface thereof by arranging an irradiation optical system, a photodetecting optical system and a measuring head comprising a light intensity distribution sensor and an optical constant calculator in a compact designing. SOLUTION: Laser light from a laser light source 10 (e.g. semiconductor laser light source) is reflected on a half mirror 11 and condensed with a convex lens 12 (condenser lens) to irradiate a sample 4. The reflected light 7 from the sample 4 is guided to a light intensity distribution sensor 9 by a photodetecting optical system 8. The light intensity distribution sensor 9 detects an intensity distribution within a light beam of the reflected light 7 guided through the photodetecting optical system 8. The light intensity distribution (reflection factor distribution) detected is collated with a theoretical reflection factor distribution to calculate an optical constant of the sample as object. This calculation is performed by an optical constant calculator 3 which, for example, comprises a microcomputer.
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