Patents by Inventor Jin Phil Ko

Jin Phil Ko 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 for preparing oxytitanium phthalocyanine charge generating material and apparatus for preparing the same
    Patent number: 7812154
    Abstract: Disclosed herein are a method and an apparatus for preparing oxytitanium phthalocyanine as a charge generating material. The method comprises the steps of homogeneously mixing an oxytitanium phthalocyanine crude with an organic solvent while microwave energy having a frequency of 0.1˜100 GHz and a power of 10˜3,000 W and ultrasonic wave energy having a frequency of 1˜1,000 kHz and a power of 10˜5,000 W are applied thereto, and reacting the mixture at 30˜100° C. for 0.5˜5 hours. The apparatus comprises: a magnetron 1 capable of generating a frequency of 0.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: October 12, 2010
    Assignee: Phthalos Co., Ltd
    Inventors: Jong Ho Kwon, Ki Suck Jung, Woo Ho Son, Seong Soo Park, Jin Phil Ko, Hyun Suk Jung