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    WATER BASED MAGNETIC INKS AND THE MANUFACTURE THEREOF
    11.
    发明专利
    WATER BASED MAGNETIC INKS AND THE MANUFACTURE THEREOF 未知

    公开(公告)号：CA1062854A

    公开(公告)日：1979-09-25

    申请号：CA232198

    申请日：1975-07-24

    Applicant: IBM

    Inventor： KOVAC ZLATA ,  GARDINEER BARBARA A

    IPC: G03G15/11 ,  C09D5/23 ,  C09D11/00 ,  H01F1/44 ,  H01F41/16 ,  H01F1/00

    Abstract: WATER BASED MAGNETIC INKS AND THE MANUFACTURE THEREOF Finely divided magnetic particles are rendered water-dispensible through the aid of a combination of one or more nonionic wetting agents and one or more cationic surface active agents. The magnetic material particles, as used in a magnetic ink, are 50 to 300 .ANG. in size and are pre-coated with a long chain unsaturated aliphatic fatty acid about C8 to C24, such as oleic acid, linoleic acid, linolenic acid, myristolenic acid, or palmitoleic acid, to maintain desired size particles while preventing agglomeration during preparation and initial water dispension.

    Mask-less selective electroplating process
    13.
    发明专利
    Mask-less selective electroplating process 未知

    公开(公告)号：IT1148822B

    公开(公告)日：1986-12-03

    申请号：IT2161180

    申请日：1980-04-24

    Applicant: IBM

    Inventor： BLUM SAMUEL EMIL ,  GUTFELD VON ROBERT JACOB ,  MELCHER ROBERT LEE ,  ROMANKIW LUBOMYR TARAS ,  KOVAC ZLATA

    IPC: H05K20060101 ,  H05K

    Abstract: A selective electroplating process involves placing a cathode and an anode in a non-photo decomposable electrolyte, directing a focusable beam of energy of intensity 102-106 W/cm2 onto the cathode surface to heat the regions to be plated, and establishing an electrical potential between the cathode and the anode. Also claimed is a similar process which employs a light beam of intensity \-102W/cm2 for heating the cathode surface. The process is esp. useful for personalising the repairing integrated circuits, but is also useful e.g. in video display techniques. Deposition rates of about 103 times greater on the heated regions than on the background can be achieved.

    15.
    发明专利
    未知

    公开(公告)号：DE2808144A1

    公开(公告)日：1978-09-07

    申请号：DE2808144

    申请日：1978-02-25

    Applicant: IBM

    Inventor： KOVAC ZLATA ,  SAMBUCETTI CARLOS JUAN

    IPC: C09D11/00 ,  C09C1/24 ,  C09D5/23 ,  H01F1/44 ,  H01F41/16

    Abstract: Water based magnetic colloidal fluids, useable as inks, when prepared by coating chemically precipitated magnetite (Fe3O4) with an adsorption site providing coating agent including certain organic anions, such as sulfates, sulfonates or amino carboxilates, and then dispersing the coated product with non-ionic, anionic or cationic surfactants may exhibit selectably cationic, anionic or non-ionic charge responsiveness.

    16.
    发明专利
    未知

    公开(公告)号：DE2148744A1

    公开(公告)日：1972-06-08

    申请号：DE2148744

    申请日：1971-09-30

    Applicant: IBM

    Inventor： KOVAC ZLATA

    IPC: C23C18/50 ,  C23C3/02

    Abstract: 1314745 Electroless plating INTERNATIONAL BUSINESS MACHINES CORP 18 Aug 1971 [27 Nov 1970] 38659/71 Heading C7F A Ni-Sn or Ni-Mo alloy is electrolessly deposited on a Cu, Ni or Fe substrate activated with Pd, the bath containing 0À1 moles of Ni catrons, tin salt e.g. SnCl 4 providing 0À1 to 0À4 moles of Sn (OH) 6 anions or molybdenum salt providing 0À1 to 0À5 moles of MoO 4 . The salt may also contain glycine, hypophosphite, tartrate or citrate ions. The pH is about 13À5 and the temperature may be 20 to 40‹C.

    19.
    发明专利
    未知

    公开(公告)号：FR2382486A1

    公开(公告)日：1978-09-29

    申请号：FR7803455

    申请日：1978-02-01

    Applicant: IBM

    Inventor： KOVAC ZLATA ,  SAMBUCETTI CARLOS J

    IPC: C09D11/00 ,  C09C1/24 ,  C09D5/23 ,  H01F1/44 ,  H01F41/16 ,  H01F1/00

    Abstract: Water based magnetic colloidal fluids, useable as inks, when prepared by coating chemically precipitated magnetite (Fe3O4) with an adsorption site providing coating agent including certain organic anions, such as sulfates, sulfonates or amino carboxilates, and then dispersing the coated product with non-ionic, anionic or cationic surfactants may exhibit selectably cationic, anionic or non-ionic charge responsiveness.

    ELECTROLESS CODEPOSITION OF NICKEL ALLOYS
    20.
    发明专利
    ELECTROLESS CODEPOSITION OF NICKEL ALLOYS 未知

    公开(公告)号：CA967705A

    公开(公告)日：1975-05-20

    申请号：CA127427

    申请日：1971-11-12

    Applicant: IBM

    Inventor： KOVAC ZLATA

    IPC: C23C18/50

    Abstract: 1314745 Electroless plating INTERNATIONAL BUSINESS MACHINES CORP 18 Aug 1971 [27 Nov 1970] 38659/71 Heading C7F A Ni-Sn or Ni-Mo alloy is electrolessly deposited on a Cu, Ni or Fe substrate activated with Pd, the bath containing 0À1 moles of Ni catrons, tin salt e.g. SnCl 4 providing 0À1 to 0À4 moles of Sn (OH) 6 anions or molybdenum salt providing 0À1 to 0À5 moles of MoO 4 . The salt may also contain glycine, hypophosphite, tartrate or citrate ions. The pH is about 13À5 and the temperature may be 20 to 40‹C.

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