公开(公告)号：DE3164510D1

公开(公告)日：1984-08-09

申请号：DE3164510

申请日：1981-03-06

Applicant: IBM

Inventor： AVIRAM ARI ,  KUHN LAWRENCE ,  PENNINGTON KEITH

IPC: B41J2/325 ,  B41J2/32 ,  B41J31/14 ,  B41M5/025 ,  B41M5/382 ,  C25D13/06 ,  C25D13/16 ,  B41M5/26

Abstract: The process for selectively reinking used thermal transfer printing ribbons comprises the stationary or moving exposure of the ribbon to a pigment-containing polymeric colloidal dispersion of electrophoretically depositable ink, and passing an electric current through said colloidal dispersion, with an electrically conductive layer of said ribbon serving as one electrode, to electrophoretically deposit the said colloidal dispersion on areas of said ribbon that have been depleted of ink in a previous printing operation, to form a continuous ink layer of uniform … The method of making said colloidal dispersion involves heating a water-insoluble polymeric binder to a liquid state, blending a pigment into the melted polymeric binder, blending a heated dilute aqueous solution of a carboxylic acid into the foregoing, then blending a colloid charge-forming com pound to the composition, and cooling the dispersion so formed.

公开(公告)号：DE3576798D1

公开(公告)日：1990-05-03

申请号：DE3576798

申请日：1985-01-24

Applicant: IBM

Inventor： SACHDEV KRISHNA GANDI ,  SACHDEV HARBANS SINGH ,  AVIRAM ARI ,  WIZNER MARK ALAN

IPC: B41M5/392 ,  B41J31/00 ,  B41J31/02 ,  B41M5/26 ,  G01D15/10

Abstract: Chemical heat amplification is provided in thermal transfer printing, wherein some of the heat necessary for melting and transferring ink from a solid fusible layer in a ribbon to a re- ce i ving medium is provided by an exothermic reaction. This chemical reaction is due to an exothermic material that is located in the ink layer, or in another layer of the ink bearing ribbon. The exothermic reaction reduces the amount of the input power which must be applied either electrically or with electromagnetic waves. Examples of suitable exothermic materials are those which will provide heat within the operative temperature range of the ink, and include hydrazone derivatives which are substantially colorless, and have a molecular weight in the approximate range 150-650. The group consisting of substituted aryl sulfonyl hydrazones, mono hydrazones of acylic -diketones, aromatic disulfonyl and diacyl hydrazones, and mono hydrazones of cyclic -dicarbonyl heterocycles are usable exothermic materials.

公开(公告)号：CA1262074A

公开(公告)日：1989-10-03

申请号：CA502808

申请日：1986-02-26

Applicant: IBM

Inventor： AVIRAM ARI ,  DOVE DEREK B

IPC: B41J2/325 ,  B41J2/32 ,  B41J2/42 ,  B41J31/00 ,  B41J31/14 ,  B41J31/16 ,  B41J35/16 ,  B41M5/24 ,  B41M5/26 ,  B41M5/34 ,  B41M5/382 ,  G01D15/10

Abstract: An improved technique and apparatus for color-on-demand resistive ribbon printing is provided in which selected colored ink layers are transferred to a resistive printing ribbon from a color-bearing ribbon, prior to resistive ribbon printing. The color ribbon and the resistive printing ribbon both contain ink layers, the only difference being that the ink layer in the printing ribbon is preferrably uncolored. When the ink layers on the two ribbons are brought into contact with one another and heated, the ink layers will become tacky and will adhere to one another. The temperatures of these ink layers are then reduced and the printing ribbon and the color ribbon are separated from one another to cause the colored ink layer on the color ribbon to separate from that ribbon and adhere to the printing ribbon, thus causing a transfer of the colored ink layer to the printing ribbon. After this, the resistive printing ribbon can be used to print colors.

公开(公告)号：DE3379899D1

公开(公告)日：1989-06-29

申请号：DE3379899

申请日：1983-11-29

Applicant: IBM

Inventor： AVIRAM ARI ,  KOVAC ZLATA ,  WANG HAN CHUNG

IPC: B41J2/305 ,  B41J1/20 ,  B41J2/495 ,  B41J9/10 ,  B41J27/20 ,  B41J3/12 ,  B41J3/08

公开(公告)号：DE3473249D1

公开(公告)日：1988-09-15

申请号：DE3473249

申请日：1984-12-14

Applicant: IBM

Inventor： SACHDEV KRISHNA GANDHI ,  AVIRAM ARI

IPC: B41M5/392 ,  B41J2/325 ,  B41J31/00 ,  B41J31/02 ,  B41M5/26 ,  C09D11/00 ,  C09D11/02 ,  G01D15/10

Abstract: By adding an aromatic azido compound which exotherms at the conditions of thermal ink transfer to a thermal transfer ink, an improved thermal transfer ink and thermal transfer ink process are achieved. Thus, the disclosure is an improvement in a thermal transfer ink composition, which comprises thereto of an aromatic azido compound which exotherms at the conditions of thermal ink transfer.

公开(公告)号：CA1241568A

公开(公告)日：1988-09-06

申请号：CA502800

申请日：1986-02-26

Applicant: IBM

Inventor： AVIRAM ARI ,  SHIH KWANG K

IPC: B41J31/00 ,  B41J31/02 ,  B41J31/05 ,  B41M5/24 ,  B41M5/26 ,  B41M5/382 ,  B41M5/40 ,  B41M5/41

Abstract: An improved resistive ribbon for thermal transfer printing is provided, where the ribbon includes a resistive layer, a metal current-return layer, a fusible ink layer, and an electric interface layer located between the resistive layer and the metal layer. The electrical interface layer is sufficiently thin so as not to impair the required mechanical properties of the ribbon (such as flexibility, stability, durability, etc.), and has as its primary function the enhancement of the electrical properties of the ribbon. Specifically, interface resistance and/or knee voltage of the current-voltage characteristics of the ribbon are enhanced by the electrical interface layer. Preferred compositions of the interface layer include alkylalkoxy silanes of a specific formula, and especially nonsymmetrical compounds of that formula.

公开(公告)号：DE3269056D1

公开(公告)日：1986-03-27

申请号：DE3269056

申请日：1982-06-08

Applicant: IBM

Inventor： AVIRAM ARI

IPC: G11B7/244 ,  G11B7/245 ,  G11B9/06 ,  G11B11/05 ,  G11B11/12 ,  G11B11/03 ,  G03C1/72

Abstract: This invention relates to a method of capacitatively storing data on a grooveless storage device. The storage device is comprised of a conductive substrate having a layer of a photosensitive composition whose dielectric constant is varied by exposing it to light. The method is carried out by projecting light in a predetermined manner onto the surface of said layer to effect changes in the dielectric constant of said layer in the predetermined manner. The exposed layer is fixed by heating. Video disks for recording and playing back video signals can be prepared in accordance with the present method.

公开(公告)号：AU539640B2

公开(公告)日：1984-10-11

申请号：AU6298380

申请日：1980-10-06

Applicant: IBM

Inventor： AVIRAM ARI ,  HOFER DONALD C ,  KAUFMAN FRANK B ,  KRAMER STEVEN ROBERT

IPC: G03F7/004 ,  G03C1/675 ,  G03C5/00 ,  G03C5/16 ,  G03F7/038 ,  H01L21/027 ,  H01L21/302 ,  G03C1/727

公开(公告)号：CA1161685A

公开(公告)日：1984-02-07

申请号：CA358898

申请日：1980-08-25

Applicant: IBM

Inventor： AVIRAM ARI ,  HOFER DONALD C ,  KAUFMAN FRANK B ,  KRAMER STEVEN R

IPC: G03F7/004 ,  G03C1/675 ,  G03C5/00 ,  G03C5/16 ,  G03F7/038 ,  H01L21/027 ,  H01L21/302 ,  G03C1/495

Abstract: new class of X-ray resists are described. The resists are donor polymer-doped halocarbon acceptor transfer complexes. They are prepared from known polymeric backbones such as polyvinylchloride, polyglutamic acid, polyvinylbenzylchloride, polyepichlorohydrin, poly(.alpha.halophosphazenes), polyacrylic chloride, polystyrene and the like, and donor molecules such as tetrathiafulvalenes, tetraselenafulvalenes, dithiadiselenafulvalene, ferrocenes, phenothiazines, pyrazoline and an amine having the general formula R-NH2 where R can be selected from alkyl and aryl groups. A lithographic method is also described.

公开(公告)号：DE3375559D1

公开(公告)日：1988-03-10

申请号：DE3375559

申请日：1983-11-22

Applicant: IBM

Inventor： AVIRAM ARI ,  SHIH KWANG KUO

IPC: B41M5/382 ,  B41J31/00 ,  B41J31/02 ,  B41M5/20 ,  B41M5/24 ,  B41M5/26

Abstract: A resistive ribbon for use in thermal transfer printing is described. The ribbon includes a resistive layer formed of a composition including a metal and a wide bandgap insulator. The ribbon may include a separate support layer. Electrical current through the resistive layer produces heat which locally melts the ink for transfer to an adjacent receiving medium. The wide bandgap insulator of the resistive layer must have a bandgap of at least three volts. Many different metals and insulators can be used, where the relative amounts of metal and insulator are chosen to provide a desired resistivity for any type of resistive ribbon printing application.Suitable metals are Ti, Ni, Cr, Mo, W, Cu, Au, Co, Sn, Al, Ta, Mg, and In, and suitable wide bandgap insulators are Al 2 O 3 , SiO, SiO 2 , TiO, TiO 2 , Mg, Cr 2 O 3 , Sn0 2 , AIN, Ta 2 0 5 , and Ge 3 N 4 .