Patents by Inventor Kwok Kam Leung

Kwok Kam Leung 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).

  • Elimination of electric-pop noise in MR/GMR device
    Patent number: 7256970
    Abstract: A magnetic reading head comprising: a bottom shield; a top shield; an AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic reading heads with GMR device free of electric-pop noise also are disclosed.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: August 14, 2007
    Assignee: SAE Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Elimination of electric-pop noise in a MR device
    Patent number: 7158356
    Abstract: The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: January 2, 2007
    Assignee: Sae Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Elimination of electric-pop noise in MR/GMR device
    Publication number: 20040169966
    Abstract: The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 2, 2004
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Elimination of electric-pop noise in MR/GMR device
    Patent number: 6583971
    Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR.GMR device to siaid bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: June 24, 2003
    Assignee: SAE Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Elimination of electric-pop noise in MR/GMR device
    Publication number: 20030103300
    Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR/GMR device to said bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 5, 2003
    Applicant: Sae Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki