Patents by Inventor Kok Kin Yap

Kok Kin Yap 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).

  • Detergent composition with low foam and high nickel solubility
    Patent number: 9447368
    Abstract: A detergent composition comprising ethylene oxide/propyleneoxide (EO/PO), sodium-2-ethylhexyliminodipropionate, potassium hydroxide, hydroxyethylene diphosphonic acid (HEDP), and diethylenetriamine-penta(methylene phosphonic acid) (DTPMP) for removing contaminants from the surface of a hard disk.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 20, 2016
    Assignees: WD MEDIA, LLC, MIPOX CORPORATION
    Inventors: Soh Kian Koo, Kok Kin Yap, Kamaruddin Ayob, Lau Meng Kun
  • Low foam media cleaning detergent
    Patent number: 9029308
    Abstract: A chemical composition for cleaning a medium is provided. For some embodiments, the chemical composition comprises a nonionic surfactant, an inorganic salt, a glycol compound, a chelating agent, and deionized water. For example, the chemical composition may comprise between about 1% and 5% of nonionic surfactant, between about 2% and 6% by weight of an inorganic salt, between about 5% and 10% by weight of a glycol compound, between about 5% and 10% by weight of a chelating agent, and deionized water.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: May 12, 2015
    Assignee: WD Media, LLC
    Inventors: Soh Kian Koo, Kok Kin Yap, EE Boon Quah
  • Workpiece carrier
    Patent number: 8608147
    Abstract: A workpiece carrier including an insert rail having a plurality of teeth, with each of the plurality of teeth having a first beveled upper edge surface.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: December 17, 2013
    Assignee: WD Media, LLC
    Inventors: Kok Kin Yap, Leong Chuan Diong