Patents by Inventor Christopher J. Sperl

Christopher J. Sperl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Plasma treatments for flexures of hard disk drives
    Patent number: 12129567
    Abstract: Methods for producing flexible circuits can include creating treating a surface of the flexible circuit with at least one of an atmospheric plasma and a beam of ions. The atmospheric plasma is formed by directing a flow of gas between an electrode and the surface of the flexible circuit and generating a voltage between the electrode and the flexible circuit to create a plasma from the gas. A mean ion energy of the ions in the ion beam ranges from about 500 electron volts to about 1,500 electron volts.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: October 29, 2024
    Assignee: Hutchinson Technology Incorporated
    Inventors: Kurt F. Fischer, Alexander W. Haas, Matthew J. Horner, Peter F. Ladwig, Carl C. Minton, Paul V. Pesavento, David D. Smahel, Christopher J. Sperl, Darrell C. Sydlo, Ritesh K. Tiwari, Kyle T. Tobias, Maryam O. Yusuf
  • PLASMA TREATMENTS FOR FLEXURES OF HARD DISK DRIVES
    Publication number: 20160329067
    Abstract: Methods for producing flexible circuits can include creating treating a surface of the flexible circuit with at least one of an atmospheric plasma and a beam of ions. The atmospheric plasma is formed by directing a flow of gas between an electrode and the surface of the flexible circuit and generating a voltage between the electrode and the flexible circuit to create a plasma from the gas. A mean ion energy of the ions in the ion beam ranges from about 500 electron volts to about 1,500 electron volts.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 10, 2016
    Inventors: Kurt F. Fischer, Alex W. Haas, Matthew J. Horner, Peter F. Ladwig, Carl C. Minton, Paul V. Pesavento, David D. Smahel, Christopher J. Sperl, Darrell C. Sydlo, Ritesh K. Tiwari, Kyle T. Tobias, Maryam O. Yusuf