Patents Represented by Attorney Joseph G. Walsh

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  • Terpolymer resist compositions
    Patent number: 4398001
    Abstract: A resist sensitive to electron beam (and X-ray) radiation but resistant to reactive ion etching is formulated from a novolac resin and a sensitizer which is a terpolymer of sulfur dioxide, an olefin is hydrocarbon and an unsaturated ether.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: August 9, 1983
    Assignee: International Business Machines Corporation
    Inventors: Ying Y. Cheng, Barbara D. Grant, Lester A. Pederson, Carlton G. Willson
  • Positive resist compositions
    Patent number: 4397937
    Abstract: Positive resists are formed from a soluble phenolic resin and a sensitizer which is a diester of a 1-oxo-2-diazonaphthalene sulfonic acid and of an unsymmetrical primary or secondary aliphatic diol which is a mixture of geometric and diastereoisomers.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: August 9, 1983
    Assignee: International Business Machines Corporation
    Inventors: Nicholas J. Clecak, Dennis R. McKean, Robert D. Miller, Terry C. Tompkins, Robert J. Twieg, Carlton G. Willson
  • Polymers from aromatic silanes and process for their preparation
    Patent number: 4397722
    Abstract: Thermally stable electrically insulating polymers are obtained from aromatic silanes by low power, radio frequency glow discharge polymerization at elevated temperature and low vapor pressure.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: August 9, 1983
    Assignee: International Business Machines Corporation
    Inventor: Ivan Haller
  • Record carrier for electro-erosion printers
    Patent number: 4392143
    Abstract: A record carrier for electro-erosion printers in which the surface of the lacquer (3) and consequently also the surface of the superimposed aluminum layer (5) show a multitude of shallow dimples (6) in the .mu. range which are very small compared with the front surfaces of the print electrodes, which are of maximum uniformity, and whose spacing is equally in the .mu. range.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: July 5, 1983
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Process for forming photoresists with strong resistance to reactive ion etching and high sensitivity to mid- and deep UV-light
    Patent number: 4389482
    Abstract: A photoresist that has strong resistance to reactive ion etching, high photosensitivity to mid- and deep UV-light, and high resolution capability is formed by using as the resist material a copolymer of methacrylonitrile and methacrylic acid, and by baking the resist before the exposure to light for improved photosensitivity, and after exposure to light, development, and prior to treatment with reactive ion etching.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: June 21, 1983
    Assignee: International Business Machines Corporation
    Inventors: Joachim Bargon, Hiroyuki Hiraoka, Lawrence W. Welsh, Jr.
  • Process for generating a sliding layer on the surface of an aluminum-coated record carrier
    Patent number: 4387119
    Abstract: For record carrier material, the front and the back sides of which are provided with a lacquer layer and the front side of which is coated with an aluminum layer, one of the two lacquer layers is admixed with a material, such as metal azide, which forms a metal radical suitable for reacting with fatty acids, while at least one of the lacquer layers is admixed with a fatty acid or a mixture of fatty acids.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: June 7, 1983
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Process for producing a sliding layer on the surface of an aluminum-coated record carrier
    Patent number: 4381322
    Abstract: To reduce scratches on the aluminum-covered front surface of a record carrier substrate having a back surface covered with a nitrocellulose lacquer, 0.1 to 2 percent by weight of a fatty acid, as referred to the weight of the wet lacquer, is added to the last applied layer of lacquer. When the record carrier is wound into a roll, the aluminum layer contacts and reacts with the fatty acid forming a sliding layer.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: April 26, 1983
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Photoassisted generation of hydrogen from water
    Patent number: 4379740
    Abstract: Hydrogen is generated from water containing acid by passing electric current through it, using as the cathode a semiconductor exposed to light and having a transition metal metallocenophane compound attached to the surface of the cathode by means of a polymer.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: April 12, 1983
    Assignee: International Business Machines Corporation
    Inventors: Adel I. Nazzal, Ulrich T. Mueller-Westerhoff
  • Positive electron beam resists of ortho chloro substituted phenol or cresol condensed with formaldehyde
    Patent number: 4379826
    Abstract: The sensitivity of a positive working electron beam resist is increased by using as the resist material a resin which is a condensation product of formaldehyde with a phenol or a cresol having a chloro substituent ortho to the hydroxyl group on its aromatic ring.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: April 12, 1983
    Assignee: International Business Machines Corporation
    Inventors: James Economy, Roy J. Gritter, Hiroyuki Hiraoka
  • Record carrier for an electro-erosion printer and method for making same
    Patent number: 4376943
    Abstract: A record carrier for an electro-erosion printer having an outer metal layer surface with roughness of high frequency, low amplitude and a soft, rounded-off waviness practically without edges or steps.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: March 15, 1983
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Process for adhering an organic resin to a substrate by means of plasma polymerized phosphines
    Patent number: 4371565
    Abstract: The adhesion of organic resins to substrate materials is increased by depositing on the substrate a coating of a plasma polymerized unsaturated organophosphine.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: February 1, 1983
    Assignee: International Business Machines Corporation
    Inventors: Arnold I. Baise, John M. Burns, Harbans S. Sachdev
  • Lacquer for record carriers, and process for its production
    Patent number: 4369271
    Abstract: A process for producing a mechanically stable, heat resistant lacquer for record carriers on a cellulose monobutyrate basis, whereby the cellulose aceto monobutyrate and a polyvinyl ester copolymer with long aliphatic side chains are mixed with each other and are processed in the form of a lacquer after addition of the fillers and/or pigments.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: January 18, 1983
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs and a method of fabricating the same
    Patent number: 4363919
    Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## Wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: December 14, 1982
    Assignee: International Business Machines Corporation
    Inventors: Edward M. Engler, Vishnubhai V. Patel, Robert R. Schumaker
  • Process for producing a polymerized, heat-resistant lacquer
    Patent number: 4362843
    Abstract: After having been pretreated by kneading at its softening temperature, a cellulose acetate is subjected to block polymerization by being kneaded with, for example, an ethylene vinyl acetate copolymerizate, at its mean softening temperature. If necessary, the block copolymerizate may be subsequently cross-linked by adding a peroxide.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: December 7, 1982
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska, Klaus Schackert
  • Heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs and a method of fabricating the same
    Patent number: 4362662
    Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: December 7, 1982
    Assignee: International Business Machines Corporation
    Inventors: Edward M. Engler, Vishnubhai V. Patel, Robert R. Schumaker
  • High resolution video storage disk
    Patent number: 4360583
    Abstract: The invention relates to high resolution video storage disks comprising a substrate having disposed thereon a film of a monofunctionalized substituted tetraheterofulvalene compound and a halocarbon. The tetraheterofulvalene compound can have the molecular formula ##STR1## where X can be S and/or Se R can be an alkyl group having from about 1 to about 8 carbon atoms or a benzyl group wherein said benzyl group can be a part of a polymer chain;and Y can be either an ester or an ether.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: November 23, 1982
    Assignee: International Business Machines Corporation
    Inventors: Edward M. Engler, Frank B. Kaufman, Steven R. Kramer, Bruce A. Scott
  • Enhancement of resist development
    Patent number: 4359520
    Abstract: The present invention is concerned with enhancement of resist development. In particular it is concerned with obtaining high solubility rate ratio between the exposed and the unexposed regions of a resist and also obtaining shorter development time. These objectives are achieved by treating the resist with a liquid trialkylamine having from two to eight carbon atoms in each alkyl group.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: November 16, 1982
    Assignee: International Business Machines Corporation
    Inventors: James A. Carothers, James Economy, Augustus C. Ouano
  • Process for reducing traces of abrasion or scratches on the surface of a record carrier
    Patent number: 4359484
    Abstract: The invention concerns a process for reducing, or completely eliminating, traces of abrasion or scratches on the surface of a record carrier covered with a thin metallic layer, preferably consisting of aluminum. The process is characterized in that the surface of the record carrier is covered with a 2 to 1000 nm thick layer of a metallic soap, preferably a saturated metallic soap, an unsaturated metallic soap or a mixture thereof.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: November 16, 1982
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Process for preparing a pigmented lacquer
    Patent number: 4339477
    Abstract: The lacquer contains a white pigment with a grain size bigger than all other pigments in the lacquer. This white pigment either changes its color itself under the influence of heat, or under the influence of heat with a substance coacting with the pigment. Preferably used is a natural or synthetic hard polymer, or in particular, calcium carbonate with an admixture of approximately 10% sodium glycolate.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: July 13, 1982
    Assignee: International Business Machines Corporation
    Inventors: Dietrich J. Bahr, Marian Briska
  • Process and recording media for continuous wave four-level, two-photon holography
    Patent number: 4339513
    Abstract: A process and recording medium for four-level, two-photon holography are provided. These media are particularly useful for recording holograms using continuous wave lasers. The recording medium is formed by a transport resin containing a tetrazine compound.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: July 13, 1982
    Assignee: International Business Machines Corporation
    Inventors: David C. Alvarez, Gary C. Bjorklund, Donald M. Burland