Patents by Inventor Y.-J. Dennis Chen

Y.-J. Dennis Chen 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).

  • Method of making at least one suspension load beam for an actuator assembly of a disk drive
    Patent number: 6938326
    Abstract: A suspension load beam for an actuator assembly of a disk drive includes a bend radius portion with a spring rate that is less than 18 Newtons per meter, a first bending mode that is greater than 3,500 Hertz, and a first torsion mode that is greater than 5,300 Hertz. The method of making this suspension load beam includes cutting a sheet of material to form a flat suspension load beam including a bend radius portion, removing material in the bend radius portion from full thickness, inspecting the bend radius portion to determine its thickness, and removing material from the bend radius portion and/or from the main body of the suspension load beam to compromise the performance difference due to thickness variation in bend radius portion.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: September 6, 2005
    Assignee: Maxtor Corporation
    Inventors: Y.-J. Dennis Chen, Lin Guo
  • Suspension load beam for disk drive actuator with notch for reducing spring rate
    Patent number: 6687091
    Abstract: A suspension load beam for an actuator assembly of a disk drive includes a bend radius portion with a spring rate that is less than 18 Newtons per meter, a first bending mode that is greater than 3,500 Hertz, and a first torsion mode that is greater than 5,300 Hertz. The method of making this suspension load beam includes cutting a sheet of material to form a flat suspension load beam including a bend radius portion, removing material in the bend radius portion from full thickness, inspecting the bend radius portion to determine its thickness, and removing material from the bend radius portion and/or from the main body of the suspension load beam to compromise the performance difference due to thickness variation in bend radius portion.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: February 3, 2004
    Assignee: Maxtor Corporation
    Inventors: Y.-J. Dennis Chen, Lin Guo
  • Suspension load beam for disk drive actuator
    Patent number: 6532135
    Abstract: A suspension load beam for an actuator assembly of a disk drive includes a bend radius portion with a spring rate that is less than 18 Newtons per meter, a first bending mode that is greater than 3,500 Hertz, and a first torsion mode that is greater than 5,300 Hertz. The method of making this suspension load beam includes cutting a sheet of material to form a flat suspension load beam including a bend radius portion, removing material in the bend radius portion from full thickness, inspecting the bend radius portion to determine its thickness, and removing material from the bend radius portion and/or from the main body of the suspension load beam to compromise the performance difference due to thickness variation in bend radius portion.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: March 11, 2003
    Assignee: Maxtor Corporation
    Inventors: Y.-J. Dennis Chen, Lin Guo