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1.发明授权Magnetic recording medium comprising a polyethylene-2,6-naphthalate multilayered film coated on both sides by a coating layer 失效磁性记录介质包括由涂层两面涂覆的聚2,6-萘二甲酸乙二醇酯多层膜
公开(公告)号：US5364684A
公开(公告)日：1994-11-15
申请号：US909400
申请日：1992-07-06
CPC分类号： G11B5/733 , G11B5/738 , Y10T428/24355 , Y10T428/24942 , Y10T428/2495 , Y10T428/24975 , Y10T428/25 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/265 , Y10T428/31511 , Y10T428/31609 , Y10T428/31786 , Y10T428/3179 , Y10T428/31797 , Y10T428/31935 , Y10T428/31938 , Y10T428/31971
摘要： Disclosed herein is a magnetic recording medium comprising:a stretched polyethylene-2,6-naphthalate multilayered film having a high-roughness surface and a low-roughness surface;a coating layer (A) having specific surface properties and being formed on the high-roughness surface of said multilayered film;a coating layer (B) having a specific surface property and being formed on the low-roughness surface of said multilayered film; anda thin ferromagnetic metal film formed on said coating layer (B).
摘要翻译： 本文公开了一种磁记录介质，包括：具有高粗糙度表面和低粗糙度表面的拉伸聚乙烯-2,6-萘二甲酸酯多层膜; 具有比表面特性并形成在所述多层膜的高粗糙度表面上的涂层（A）; 具有比表面性的涂层（B）形成在所述多层膜的低粗糙度表面上; 和形成在所述涂层（B）上的薄铁磁性金属膜。
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公开(公告)号：US5006589A
公开(公告)日：1991-04-09
申请号：US360781
申请日：1989-06-02
CPC分类号： G11B5/733 , Y10T428/24942
摘要： Disclosed in this invention is a polyester film for magnetic recording media, containing 0.05 to 5% by weight of inactive inorganic particles (A) having a Mohs hardness of 6 or above and an average particle size of 0.005 to 1.0 .mu.m and 0.01 to 2.0% by weight of inactive particles (B) having an average particle size which is greater than that of the particles (A) and in the range of 0.1 to 3.0 .mu.m, the polyester film having an intrinsic viscosity in the range of 0.52 to 0.65. The polyester film of this invention is excellent in abrasion resistance, scuff resistance and slitting qualities and useful as a base film for magnetic recording media.
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公开(公告)号：US20100072892A1
公开(公告)日：2010-03-25
申请号：US12443085
申请日：2007-09-21
申请人： Akio Watanabe , Tetsuo Ootani , Seiji Sakamoto , Minoru Nishizono
发明人： Akio Watanabe , Tetsuo Ootani , Seiji Sakamoto , Minoru Nishizono
CPC分类号： H05B3/009 , H01J5/38 , H01J5/46 , H01K1/14 , H01K1/24 , H01K1/38 , H01K1/40 , H01K1/44 , H01K1/46 , H01K3/26
摘要： A halogen lamp including a glass bulb, a filament inserted inside the bulb, a pair of metal foils, and a pair of outer leads. Each metal foil has one end welded to the filament and the other end welded to the outer lead. The metal foils are contained in glass sleeves and they are collectively inserted inside the bulb. The bulb is softened by heating and shrinks because its inside pressure is reduced to seal the metal foils therein. Since the amount of glass of each sealed portion is larger than the other portions of the bulb by the amount of the sleeve, the shape of the sealed portion is stabilized.
摘要翻译： 一种卤素灯，包括玻璃灯泡，插入灯泡内的细丝，一对金属箔和一对外引线。 每个金属箔的一端焊接到灯丝，另一端焊接到外引线。 金属箔被包含在玻璃套筒中，并且它们被一起插入灯泡内。 通过加热和收缩来使灯泡软化，因为其内部压力减小以密封其中的金属箔。 由于每个密封部分的玻璃量比套管的其他部分大，所以密封部分的形状是稳定的。
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公开(公告)号：US4767657A
公开(公告)日：1988-08-30
申请号：US883285
申请日：1986-07-07
申请人： Seiji Sakamoto , Yoshio Meguro
发明人： Seiji Sakamoto , Yoshio Meguro
CPC分类号： G11B5/7305 , Y10S428/90 , Y10S428/91 , Y10T428/24372 , Y10T428/24413 , Y10T428/24421 , Y10T428/24479 , Y10T428/25 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/269 , Y10T428/31 , Y10T428/31786 , Y10T428/31797
摘要： There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: ##EQU1## wherein N.sub.1 is the number of peaks of surface projections per millimeter;h is the average height in .mu.m of the surface projections;.theta. is the average steepness in degree of the surface projections;H.sup.2 is the mean square height in .mu.m.sup.2 of the surface projections; andn is the average refractive index.
摘要翻译： 公开了一种适用于具有以下等式表示的特性的磁带的聚酯膜：N1h（i）其中N1是峰的数量 的表面投影每毫米; ＆upbar＆h是表面投影的平均高度，单位为μm。 θ是表面投影的平均陡度; ＆upbar＆H2是表面投影的平均单位面积的平方米; 和＆amp; upbar＆n是平均折射率。
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公开(公告)号：USD598158S1
公开(公告)日：2009-08-11
申请号：US29290611
申请日：2007-12-26
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公开(公告)号：USD586495S1
公开(公告)日：2009-02-10
申请号：US29290608
申请日：2007-12-26
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公开(公告)号：US5023291A
公开(公告)日：1991-06-11
申请号：US379346
申请日：1989-07-13
申请人： Seiji Sakamoto , Nobuyasu Shudo
发明人： Seiji Sakamoto , Nobuyasu Shudo
CPC分类号： C08J5/18 , C08K3/22 , C08J2367/02
摘要： Disclosed herein is a polyester composition which comprises a polyester with a terminal carboxyl group content of 40 to 80 equivalents/10.sup.6 and 0.0 to 5 wt %, based on the total amount of the polyester composition, aluminum oxide particles of 0.005 to 5 .mu.m in average particle diameter and which has a melt resistivity of 6 x 10.sup.6 to 5 x 10.sup.8 .OMEGA..cm.By using the polyester composition, it is possible to successively produce a film having excellent wear resistance and flatness over a long production run.
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公开(公告)号：US4840830A
公开(公告)日：1989-06-20
申请号：US105977
申请日：1987-10-06
申请人： Seiji Sakamoto , Kiyoshi Yasumura
发明人： Seiji Sakamoto , Kiyoshi Yasumura
CPC分类号： C08J5/18 , C08K3/32 , G11B5/7305 , C08J2367/02 , Y10T428/24355 , Y10T428/31 , Y10T428/31786
摘要： A polyester film suitable for use as the magnetic tape base for video recording, capable of high density recording and having stable slidability or running characteristics. The polyester film is made of a polyester which contains 0.05-1 wt % particles containing calcium and phosphorus and of which the number n of the second interference fringes (number/mm.sup.2) and the average centerline roughness (.mu.m) satisfy the following relationships:n
摘要翻译： 适用于视频记录磁带基座的聚酯薄膜，能够进行高密度记录并具有稳定的滑动性或运行特性。 聚酯膜由含有0.05-1重量％的含有磷和磷的颗粒的聚酯制成，其中第二干涉条纹数（数/ mm2）和平均中心线粗糙度（μm）满足以下关系： n <30（1）0.005
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公开(公告)号：USD586941S1
公开(公告)日：2009-02-17
申请号：US29290610
申请日：2007-12-26
申请人： Yuji Itakura , Seiji Sakamoto , Tetsuo Ootani , Akio Watanabe
设计人： Yuji Itakura , Seiji Sakamoto , Tetsuo Ootani , Akio Watanabe
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公开(公告)号：US4886705A
公开(公告)日：1989-12-12
申请号：US210620
申请日：1988-06-21
申请人： Seiji Sakamoto
发明人： Seiji Sakamoto
CPC分类号： C08J5/18 , C08J2381/02 , H05K1/0333 , H05K1/0373 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/31 , Y10T428/31533
摘要： Disclosed herein is a uniaxially or biaxially oriented polyphenylene sulfide film wherein the number of n-order of interference fringes Hn (per mm.sup.2) as measured by a multiple interference method satisfies the following relations (1) and (2) at the same time:30.ltoreq.H.sub.1 .ltoreq.300 (1)10.ltoreq.H.sub.3 .ltoreq.300 (2)
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