Patents by Inventor Peng Luo

Peng Luo 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).

  • Dual write gap perpendicular recording head
    Publication number: 20080297946
    Abstract: A perpendicular recording head for a hard disk drive. The head includes a non-magnetic backside shield that minimizes or eliminates the flow of backside flux through the head. The head can be fabricated by forming a non-magnetic backside shield layer on a main pole. Portions of the backside shield and main pole can be removed to form a tapered pole portion. A non-magnetic write-gap layer and write shield are then formed onto the backside shield and main pole.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Peng Luo, Keung Youn Cho, Shuyu Sun
  • Erase band compensated offset servo trimming
    Publication number: 20080297938
    Abstract: A hard disk drive with a disk that has a servo field with an A servo burst and a B servo burst. The A servo burst has a trimmed erase band. The trimmed erase band can be created by offsetting the write head relative to a burst centerline to reduce the width of the erase band. For example, the write head can be moved toward a centerline of the A servo burst. The offset can be a function of write current and cylinder location of the disk. The offsets are selected so that the resultant burst profiles do not contain a flat minimum portion.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Peng Luo, Keung Youn Cho, Hao Ping Wen, Shuyu Sun
  • Perpendicular recording head with a grooved yoke
    Publication number: 20080204930
    Abstract: Disclosed is a perpendicular recording head for a hard disk drive. The perpendicular recording head includes a yoke that has a plurality of grooves essentially perpendicular to a magnetic flux that flows in a vertical direction relative to the yoke.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Peng Luo, Shuyu Sun, Chaoyuan Chen