Patents Represented by Attorney Nath & Assoicates

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  • Photoresist film for deep ultra violet and method for forming photoresist film pattern using the same
    Patent number: 6087065
    Abstract: A photoresist film superior in etch resistance and PED stability, as well as transmittance to deep UV, having a backbone of polymethylmethacrylate grafted with piperidine moiety of which the nitrogen atom acts as a base.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: July 11, 2000
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Cha Won Koh, Cheol Kyu Bok
  • Sustained release delivery system
    Patent number: 6063405
    Abstract: Sustained release compositions comprising a drug dispersed within a polymer matrix, methods of producing the same and treatments with the complex.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: May 16, 2000
    Assignee: L.A.M. Pharmaceuticals, LLC
    Inventors: Alan Drizen, Peter Rothbart, Gary M. Nath