Patents by Inventor Rajendra Bhadra

Rajendra Bhadra 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).

  • Mounting apparatus for storage devices
    Patent number: 7180732
    Abstract: A method and apparatus for mechanically mounting and electrically connecting a plurality of small form factor (SFF) storage devices such as 2.5? hard disk drives in place of a larger SFF hard disk drive such as a single SFF 3.5? hard disk drive. This provides increased disk drive capacity and/or higher performance. The storage devices may be connected in a redundant array of independent disk (RAID) architecture for implementation as a RAID stripe, mirror, or other RAID configuration.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: February 20, 2007
    Assignee: Disk Dynamix
    Inventors: Thomas F. Meehan, Raymond A. Bahar, Rajendra Bhadra, Patrick Weiher
  • Method and apparatus for mechanically and electrically mounting a plurality of small form factor storage devices in place of a single larger form factor hard disk drive
    Publication number: 20040177219
    Abstract: A method and apparatus for mechanically mounting and electrically connecting a plurality of small form factor (SFF) storage devices such as 2.5″ hard disk drives in place of a larger SFF hard disk drive such as a single SFF 3.5″ hard disk drive. This provides increased disk drive capacity and/or higher performance. The storage devices may be connected in a redundant array of independent disk (RAID) architecture for implementation as a RAID stripe, mirror, or other RAID configuration.
    Type: Application
    Filed: November 5, 2003
    Publication date: September 9, 2004
    Inventors: Thomas F. Meehan, Raymond A. Bahar, Rajendra Bhadra, Patrick Weiher
  • Multiple level raid architecture
    Publication number: 20040177218
    Abstract: A method, apparatus, and system for implementing a multi-level redundant array of independent disks (RAID) architecture to increase data storage system performance and/or redundancy of data. In one embodiment, the RAID architecture includes, at the lowest or n-th layer, a plurality of nodes or storage devices implementing striped, mirrored, and/or other RAID algorithm, and assigned a system identification or LUN (logical unit number). Each LUN is part of a larger data storage system that may employ one or more other RAID organizations such as a RAID 4 or RAID 5.
    Type: Application
    Filed: November 5, 2003
    Publication date: September 9, 2004
    Inventors: Thomas F. Meehan, Raymond A. Bahar, Garrick Yeung, Rajendra Bhadra
  • Negative pressure air bearing slider
    Patent number: 5568981
    Abstract: A negative pressure air bearing slider is provided with side rails, a central negative pressure cavity between the side rails and one or more relief vents at the leading edge of the slider. The side rails extend fully or partially from tapered regions at the leading edge of the slider to the trailing edge of the slider. Air bearing pads disposed adjacent to the front tapered regions and/or the slider trailing edge may be configured with the side rails. By virtue of the slider design, variations in flying height and roll are minimized.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: October 29, 1996
    Assignee: Read-Rite Corporation
    Inventors: Daniel A. Nepela, Ciuter Chang, Yiao-Tee Hsia, Rajendra Bhadra