Patents by Inventor Yong-Ki Min

Yong-Ki Min 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).

  • Patent number: 5581393
    Abstract: A photoresist is deposited on a glass substrate for forming a separation layer. Then, an array of reflectors is generated on the separation layer; followed by a supporting layer thereon, which is made of a self-adhesive epoxy. Thereafter, an actuator array is bonded on the supporting layer. The separation layer is then removed to disengage the glass substrate. The mirror array formation is finalized by patterning the separation layer. Consequently, the above inventive process allows the fabrication of a mirror array in a simple manner without having to employ the electroplating process.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: December 3, 1996
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Yong-Ki Min
  • Patent number: 5552923
    Abstract: An array of M.times.N electrodisplacive actuated mirrors for use in an optical projection system is assembled by way of: (a) preparing two identical ceramic wafers; (b) forming M identical trenches thereon; (c) interlocking and bonding together to form a ceramic block; (d) forming a composite ceramic structure from the ceramic block by polishing the top and bottom surfaces thereof: (e) providing M.times.N signal electrodes and M+1 bias electrodes on the bottom and top surfaces thereof, respectively; (f) mounting on an active matrix to thereby form an array of M.times.N actuators; (g) preparing platforms, to be formed thereon a light reflecting layer; (h) forming the light reflecting layer; (i) patterning the light reflecting layer, including the platform into an array of M.times.N mirrors; and (j) making electrical connections to thereby form the array of M.times.N electrodisplacive actuated mirrors.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: September 3, 1996
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Yong-Ki Min
  • Patent number: 5505807
    Abstract: The present invention relates to improved methods for fabricating and mounting an array of M.times.N mirrors on an array of M.times.N electrodisplacive actuators to thereby form an array of M.times.N electrodisplacive actuated mirrors for use in an optical projection system, wherein M and N are integers. In accordance with the present invention, there are provided two methods, one of the methods comprising the steps of: forming a separation layer on a substrate; providing a supporting layer on the separation layer; bonding the array of M.times.N actuators on the supporting layer; removing the separation layer so as to disengage the substrate; patterning the supporting layer into an array of M.times.N supporting members; and forming a light reflecting metallic layer on top of each of the supporting members to thereby provided the array of M.times.N electrodisplacive actuated mirrors.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: April 9, 1996
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Yong-Ki Min, Dong-Kuk Kim
  • Patent number: 5498730
    Abstract: The present invention provides fluorinated alkyl compound derivatives represented by formula of: ##STR1## wherein: R is C.sub.2-4 lower alkyl, cyclohexyl or thiophene; phenyl substituted with hydrogen, C.sub.1-6 alkyl, haloalkyl, halogen or alkoxy; and,R.sub.f is fluorinated C.sub.1-3 lower alkyl.The fluorinated alkyl compound derivatives of the invention can be used as agrochemicals, drugs and intermediates therefor. The present invention also provides a novel process for preparing the fluorinated alkyl compound derivatives (I).
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: March 12, 1996
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kwang-Yun Cho, Bum-Tae Kim, Young-Sup Kim, Yong-Ki Min, No-Kyun Park, In-Howa Jeong
  • Patent number: 5481034
    Abstract: The present invention provides novel fluorinated abscisic acid derivative represented by formula of: ##STR1## wherein: X is O(CH.sub.2).sub.2 O or O; and,R is hydroxymethyl, aldehyde, C.sub.1-2 alkoxycarbonyl or carboxyl group.The present invention also provides a novel process for preparing the fluorinated abscisic acid derivative represented as the formula (I), and also provides their use for plant growth regulator.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: January 2, 1996
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Bum-Tae Kim, Yong-Ki Min, No-Kyun Park, Tae-Jun Kim, Kwang-Yun Cho