公开(公告)号：US3772016A

公开(公告)日：1973-11-13

申请号：US3772016D

申请日：1973-01-30

Applicant: IBM

Inventor： ANDERSON H ,  BARTKUS E

IPC: B41M1/20 ,  G03F7/02

CPC classification number: B41M1/20

Abstract: A planographic printing surface capable of simultaneously printing more than one color is produced from light sensitive plates including at least one conductive metal layer by selectively exposing the light sensitive portion of the plate, developing the light exposed portions, removing either the exposed or nonexposed light sensitive portions, and then, as required, electrolytically coating, etching, or further exposing the portions of the plate thus revealed. Successive applications of this technique may be made. The process results in a planographic printing surface with portions which have differing surface energies and which portions are therefore susceptible to selective wetting by various colored inks having differing surface energies. Inking of the thus produced surface with inks which selectively wet specific portions of the surface, followed by bringing the surface into contact with a to-be-printed article results in a multicolor print in a single pass. In preferred printing processes, the various inks having varying surface energies are mutually nonmiscible with one another.

Abstract translation: 能够同时印刷多种颜色的平版印刷表面由包括至少一个导电金属层的感光板通过选择性地暴露板的光敏部分而显影，从而显影曝光部分，去除曝光或未曝光的光敏感 部分，然后，根据需要，电解涂覆，蚀刻或进一步暴露如此显露的板的部分。 可以连续应用该技术。 该方法产生具有不同表面能的部分的平版印刷表面，并且因此这些部分易受到具有不同表面能的各种着色油墨的选择性润湿。 通过选择性地润湿表面的特定部分的墨水，随后使表面与待印刷的物品接触，从而产生如此产生的表面，从而在单程中产生多色印刷。 在优选的印刷方法中，具有变化的表面能的各种油墨彼此不相互混溶。

公开(公告)号：SE339518B

公开(公告)日：1971-10-11

申请号：SE1756566

申请日：1966-12-22

Applicant: IBM

Inventor： GREBE K ,  BARTKUS E ,  BROWNLOW J

IPC: H01F10/10 ,  H01F10/20 ,  G11C5/00

Abstract: 1,137,288. Magnetic data-storage apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 10 Nov., 1966 [23 Dec.; 1965], No. 50346/66. Heading H3B. [Also in Divisions D1 and H1] A storage device is produced by forming a layer of green magnetic ferrite around a cylindrical substrate, surrounding this layer with a green non-magnetic ferrite, slicing both ferrites, and sintering the slices. The magnetic ferrite may be Fe 1 . 62 Mn 0 . 80 Cu 0 . 45 Zn 0 . 10 Bi 0 . 02 La 0 . 01 O 4 and may be prepared by ball-milling a mixture of Fe, Cu, Zn and Bi oxides, MnCO 3 , and LaFeO 3 , passing it through a 20-mesh screen, calcining at 650‹ C., remilling, passing it through a 325-mesh screen, and drying. The non-magnetic ferrite may be Fe 1 . 2 Mn 0 . 78 Cu 0 . 3 Zn 0 . 7 Bi 0 . 02 0 4 or Fe 0 . 8 Mn 1 . 48 Cu 0 . 2 Zn 0 . 5 Bi 0 . 02 O 4 . A barrier layer, e.g. of Mn 3 O 4 , Cr 2 O 3 , Mn 3 O 4 + Cr 2 O 3 or Mn 3 O 4 +ZnO, may be provided between the two ferrites. The substrate may be a nylon filament which may be coated with a release agent, e.g. colloidal wax in water, and removed by pulling from one end. The magnetic and barrier layers may be applied by passing a continuous length of the filament through a suspension of the material and then passing it twice through an oven (at 70‹ and 80‹ C., using a nitrocellulose-amyl acetate solution, and at 100‹ and 110‹ C., using an epoxy resin solution); this process is repeated five times and the filament is then passed through an oven (at 85‹ or 125‹ C. resp.) 10 times. The structure may then be similarly coated with the non- magnetic ferrite, and a number of such structures cast in a wax or polyethylene block; the filament is then removed, the block sliced, and the wax melted off by heating to 100- 125‹ C. Alternatively, the structures may be cast in a block of the non-magnetic ferrite, which is dried at 90‹ C. in the mould and then at 100‹ C.; the filament is removed; and the block is then sliced either perpendicular to or along the axes of the cores (in the latter case the two halves are turned through 90 degrees before firing). Firing may be effected in a Ni boat coated with Mn 3 O 4 , initially at 600‹ C. to drive off the binder, and then at 920‹ C. The magnetic layer may have an inner diameter of 3 or 4À5 mils.

公开(公告)号：SE315311B

公开(公告)日：1969-09-29

申请号：SE74864

申请日：1964-01-22

Applicant: IBM

Inventor： BARTKUS E ,  BROWNLOW J ,  ELFANT R ,  GREBE K

IPC: G11C7/02 ,  G11C11/06 ,  G11B11/02

Abstract: 1,023,627. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 26, 1964 [Nov. 21, 1963], No. 43506/64. Addition to 998,891. Heading H3B. [Also in Division H1] The tubular storage device described in the parent Specification is modified by the use of hole pairs for the conductors B in the form of two parallel slits 18 arranged longitudinally of the tube 12, each conductor B being made of strip material. The tube is formed by a magnetic U-shaped trough 14 and a magnetic closure plate 16, the same or different materials being used. The magnetization characteristic of the magnetic material need not be rectangular.