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51.发明专利
公开(公告)号：JPH06157786A
公开(公告)日：1994-06-07
申请号：JP18975493
申请日：1993-07-30
Applicant: BASF MAGNETICS GMBH
Inventor： GERUTO FUITSUSHIYAA , ARUFUREETO HAAGEMAIYAA , HARUTOMUUTO HIBUSUTO , HANSU YURUGEN RIHITAA , HANSUUPEETAA SHIRUTOBERUKU , SHIRUBUAN RAZAARU , MATEIASU BORE
IPC: C08J7/00 , B23K26/00 , B29C35/08 , B29C59/16 , C08G63/88 , C08J5/18 , G11B5/73 , G11B5/84 , H05K3/38
Abstract: Sheet-like PET materials having slight surface roughness consisting of fine dot patterns in the submicron range are produced by double successive exposure of the surfaces to polarized UV light produced by a pulsed excimer laser and having planes of polarization arranged at an angle of from 20 DEG to 90 DEG relative to one another, and the PET films treated in this manner are used as a substrate for thin ferromagnetic metal layers.
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公开(公告)号：JPH0616286A
公开(公告)日：1994-01-25
申请号：JP33867192
申请日：1992-12-18
Applicant: BASF MAGNETICS GMBH
Inventor： FURIIDORITSUHI HERUTO , AUGUSUTO RIIPORUTO , BERUNTO SHIYORUTEIZUITSUKU , HOSE TORARU
Abstract: PURPOSE: To provide an attachable and detachable tape hub tensioning means by centering the hub on the means with high accuracy eve when winding a tape at a high speed with a simple structure and simultaneously press engaging the hub axially without difficulty. CONSTITUTION: The hub tensioning means has a common dealing means for locking winding element with an inner cylindrical cavity in a winding shaft. The hub 1 is uniformly distributed on a periphery along bores 2, 2' in a circumferential direction, and has notches 3, 3' alternately axially directed in one and the other, and finished at an oblique step 4 staring near a geometrical center 5 of the hub, a spring mounted tensioning element mutually operated with the notches 3, 3' of the hub 1 is provided on a periphery of the element, and the element has a radial protrusion to lock with the notches 3, 3' in an axial direction.
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公开(公告)号：JPH05338871A
公开(公告)日：1993-12-21
申请号：JP33867292
申请日：1992-12-18
Applicant: BASF MAGNETICS GMBH
Inventor： BERUNTO SHIYORUTEIZUITSUKU , AUGUSUTO RIIPORUTO , HOSE TORARU , MANFUREETO BAUMAN
Abstract: PURPOSE: To simply, effectively press a hub to a winding element and to accurately hold a tensioning means by providing a plurality of elastic elements uniformly distributed on a periphery over an inner periphery of the hub, and forming the element in a shape of a bent arm. CONSTITUTION: The hub 1 has an outer part having a cylindrical surface 12 for winding a magnetic tape, an inner cylindrical part 3 and a radial web 13 disposed therebetweeen. A plurality of elastic elements 2 are extended from the part 3 and formed in an arm-like state radially bent. Further, radially protruding protrusions 7 are provided at ends of the elements 2. The hub 1 is compressed in winding on the hub 1 of a magnetic tape. Accordingly, before winding, the hub 1 is brought into contact with the hub holder 6 only at the protrusions 7. Meanwhile, when the tape is completely wound on the hub 1, the hub 1 is held by the elements 2 and the protrusions 7, and the hub 1 is brought into contact with the winding shaft 9 or the holder 6.
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公开(公告)号：JPH05334657A
公开(公告)日：1993-12-17
申请号：JP33288392
申请日：1992-12-14
Applicant: BASF MAGNETICS GMBH
Inventor： NORUBERUTO SHIYUNAIDAA , AUGUSUTO REENAA , URUZURA KURAIN , BUERUNAA RENTSU , BUERUNAA BARUTSU , ARUBERUTO KOORU , GIYUNTAA BETEINGAA
Abstract: PURPOSE: To provide a magnetic recording medium low in surface roughness, excellent in wear resistance of layer surface, having magnetic layer stability at a high temp. of 85 deg.C and high humidity condition and capable of preventing the lowering of output level and the block of a tape in an extreme operating condition. CONSTITUTION: The magnetic recording medium is obtained by preparing dispersion, in which an anisotropic magnetic material, and usual additives are dispersed in a polymer binder solution in an organic solvent, applying on a non- magnetic base body to film form, orienting by placing the anisotropic magnetic material in magnetic field and hardening the formed magnetic layer. And 0.3-5wt.% finely pulverized polysilicic acid made hydrophobic by a chemically bonded carbon is allowed to exist in the magnetic layer.
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公开(公告)号：JPH05217164A
公开(公告)日：1993-08-27
申请号：JP21015692
申请日：1992-08-06
Applicant: BASF MAGNETICS GMBH
Inventor： ARUFUREETO HAAGEMAIYAA , ANDOREASU FUERUSUKE , HARUTOMUUTO HIBUSUTO , DEIITAA BOIERE , YOHANESU HAITSU
Abstract: PURPOSE: To provide a method for producing a magnetic recording medium having a ferromagnetic metallic tightly adhered thin layer formed on a polymer substrate without bringing about defects arising thus far, and more particularly, greatly improves the adhesiveness of the metallic layer to the substrate, forming a uniform and mechanically stable metallic layer free from defects, such as cracks and internal strains, and assuring the homogenous characteristics over a wide area with a high-speed and short-time treatment. CONSTITUTION: This method is for production of magnetic recording medium consisting essentially of polymer substrate, ferromagnetic metallic tightly adhered thin layer applied on the surface of the substrate by PVD method and if necessary, a protective layer formed on the metallic layer. The polymer substrate is exposed to UV radiations which are induced by the cracking of excimer and has a wavelength from 150 to 400nm and has an energy density below the abrasion threshold prior to the application of the metallic layer.
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Patent Agency Ranking56.发明专利
公开(公告)号：JPH05205435A
公开(公告)日：1993-08-13
申请号：JP21763492
申请日：1992-08-17
Applicant: BASF MAGNETICS GMBH
Inventor： KURAUSU SHIETORE , YOOAHIMU EEBAAHARUTO , GERARUTOOBUORUFUGANGU BORUKU
IPC: G11B23/087
Abstract: PURPOSE: To make the contact part between a case and a window inconspicuous visually by hiding a fixing parts offending the eye between both parts, especially, points of weldings and points of fusion weldings in a case having a window and in a viewing window for an opaque or transparent case of the part of the case. CONSTITUTION: Concerning a case, especially a tape cassette is provided with at least a window part 7 capable of being fixed to the cut part of a cabinet 6 at fixing part and constituted of a window part having parts whose transparency properties and different. The case or the cassette has such features, that parts, whose transparency properties are different, are constituted of a transparent, part 9 and a hiding part 10, and the part 10 hides at least the upper side of fixing parts.
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公开(公告)号：JPH05138587A
公开(公告)日：1993-06-01
申请号：JP10722592
申请日：1992-04-27
Applicant: BASF MAGNETICS GMBH
Inventor： YOOZEFU BIRUKUMAN , KURAUSU BOTO , BERUNTO SHIYORUTEIZUITSUKU
Abstract: PURPOSE: To constitute a cutting device for a film web, having a blade to be hardly worn, capable of reliably fixing the blade, having a simple structure and high accuracy, and capable of easily assembling and disassembling a blade shaft. CONSTITUTION: A disc blade 1 is fitted in a groove 5 formed on an intermediate ring 13, this disc blade 1 is pressed to one wall of the groove 5 by a spring element 14 fitted in the groove 5, and a point of action of the spring element 14 is in the diameter of the intermediate ring 13.
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公开(公告)号：JPH05101384A
公开(公告)日：1993-04-23
申请号：JP7688892
申请日：1992-03-31
Applicant: BASF MAGNETICS GMBH
Inventor： HANSU YURUGEN RIHITAA , HARUTOMUUTO HIBUSUTO , GERUTO FUITSUSHIYAA
Abstract: PURPOSE: To provide a process for producing a magnetic recording medium of a metallic thin layer type of which the projection of the desirable magnetic direction with respect to a tape surface is aligned to an average recording direction. CONSTITUTION: The magnetic recording medium is produced by forming a vapor jet 7 of a ferromagnetic material from an evaporating device 6 to which this material is supplied in a reduced pressure chamber 1 and depositing the vapor jet by evaporation on polymer band-like substrates guided on a cylindrical drum. At this time, the vapor jet 7 is brought into collision against the substrates 2, 2' at the angle different from 90 deg.. The vapor jet 7 of the ferromagnetic material injected form the evaporating device 6 toward the cylindrical drums 4, 4' in the reduced pressure chamber 1 is brought into contact with the surfaces of two sheets of the band-lie substrates 2, 2' guided in the direction facing each other on two pieces of the separate cylindrical drums 4, 4' at the angle not below 30 deg. and not over 90 deg.. The evaporating device 6 is shifted in the axial line direction of the drums so as to be arranged between two pieces of the cylindrical drums 4, 4'.
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公开(公告)号：JPH0570005A
公开(公告)日：1993-03-23
申请号：JP4684492
申请日：1992-03-04
Applicant: BASF MAGNETICS GMBH
Inventor： BAARUFUYUSAA YOOHAN
Abstract: PURPOSE: To provide an apparatus for cutting a tape such that a high quality cutting part is attained and fixing the tape to a new tube without causing any bend of the tape when a produced tape-like material is wound fully around a winding tube. CONSTITUTION: A cutting knife 3 having a fixing brush 7 is held, at the opposite ends thereof, by a guide belt 6 which cuts off a tape 1 while circulating at high speed through a deflecting roll 4 and the fixing brush 7 fixes the starting end of the tape to a new tube 2.
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公开(公告)号：JPH0532289A
公开(公告)日：1993-02-09
申请号：JP282292
申请日：1992-01-10
Applicant: BASF MAGNETICS GMBH
Inventor： KURAUSU SHIETORE , YOOAHIMU EEBAAHARUTO , ROOTARU GURINIORUTSU , BOTSUIDARU PAFUERUKA
IPC: B65D85/575 , G11B23/02 , G11B23/023
Abstract: PURPOSE: To increase a protective function of tape cassettes by providing tape locking elements, which are at the bottom face of a parallel hexahedron container for tape cassettes, with arc-shaped ring segments which are roughly adapted to the drive orifice of the tape locking element. CONSTITUTION: A container 5 is composed of a bottom part 6 and a lid part 7 which are pivotally connected by a hinge means 17, the bottom part 6 is provided with locking spindles (locking elements) 9, 10, and the lid part 7 is provided with a cassette pocket 8. The bottom part 6 is provided with a notch 11 to which the front wall of the pocket 8 is fitted when the container 5 is closed. The container 5 houses a compact cassette K. This cassette K is provided with a drive orifice 18 in which a hub 20 with drive gears is arranged. In this drive orifice 18, the locking elements 9, 10 are pushed which consists of a ring segment 21, a longitudinal web 22, and a center peg 23. The ring segment 21 is formed in an ark shape roughly adapted to the circular shape of the drive orifice 18.
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