Patents by Inventor Ke Min

Ke 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).

  • Publication number: 20100273906
    Abstract: The present disclosure describes a two-step batch dispersion polymerization process for the preparation of substantially uniformed-sized functional (co)polymer particles. The first step of the process includes polymerizing at least one first radically (co)polymerizable monomer by a free radical polymerization process to form a (co)polymer in a stable colloidal dispersion and the second step includes polymerizing the at first radically (co)polymerizable monomer or an additional radically (co)polymerizable monomer in the stable colloidal dispersion by a living/controlled radical (co)polymerization process.
    Type: Application
    Filed: May 23, 2008
    Publication date: October 28, 2010
    Inventors: Krzysztof Matyjaszewski, Ke Min, James Spanswick
  • Publication number: 20100143286
    Abstract: Functional gel particle formed from a crosslinked polymeric network including a fraction of stable crosslinks and a second fraction of cleavable crosslinks are disclosed. Functional compounds may be chemically or physically encapsulated within and/or released from the gel particle by selective cleavage of the cleavable crosslinks. The functional compounds may be delivered and released to a pre-selected target site. Peripheral or other accessible functionality on the surface of the gel particle allows attachment of a surface reactive agent, thereby modifying one or more surface properties of the gel particle. Processes of preparing the gel particles and processes of delivering the functional compounds to a target site are also disclosed.
    Type: Application
    Filed: October 9, 2007
    Publication date: June 10, 2010
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Krzystof Matyjaszewski, Ke Min, Jung Kwon Oh, James Spanswick, Nicolay V. Tsarevsky
  • Publication number: 20100052591
    Abstract: A motor driving circuit for adjusting speed of the motor by changing output voltage is disclosed. One end of the motor is coupled to a variable voltage source. The motor driving circuit includes a motor-driving unit, a control unit and a determining unit. The motor-driving unit includes a first end coupled to another end of the motor, a second end coupled to a ground and a third end, and is utilized for driving the motor. The control unit is utilized for controlling the voltage between the first end and the third end of the motor-driving unit. The determining unit is coupled between the variable voltage source and the control unit, and is utilized for controlling the control unit to adjust the voltage between the first end and the third end of the motor-driving unit according to magnitude of the voltage of the variable voltage source.
    Type: Application
    Filed: October 20, 2008
    Publication date: March 4, 2010
    Inventors: Ke-Min Chen, Ching-Sheng Li, Kun-Min Chen, Shen-Min Lo, Ching-Shan Lu
  • Publication number: 20090176951
    Abstract: The invention is directed to a microemulsion polymerization comprising adding a polymerization catalyst precursor, such as a transition metal complex in the higher of two accessible oxidation states, an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion. Radically polymerizable monomers and a reducing agent may then be added to the emulsion. The reducing agent converts the catalyst precursor to a catalyst for polymerization of the first monomer from the initiator. In certain embodiments the organic solvent may comprise radically polymerizable monomers. The aqueous solution may comprise a surfactant.
    Type: Application
    Filed: August 23, 2006
    Publication date: July 9, 2009
    Inventors: Krzysztof Matyjaszewski, Ke Min
  • Patent number: 7367377
    Abstract: A winding device for a Venetian blind includes at least one support seat secured to a headrail to correspond to the position of at least one pull cord and having an inside formed with a through hole and a side formed with a guide hole, and at least one slide bushing mounted on a drive shaft to rotate therewith and pivotally mounted in the through hole of the at least one support seat. Thus, the wound pull cord pushes the slide bushing to move relative to the support seat during rotation of the slide bushing, so that the pull cord is wound around the slide bushing smoothly by movement of the slide bushing so as to lift the pull cord smoothly.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: May 6, 2008
    Inventor: Ke-Min Lin
  • Publication number: 20080035280
    Abstract: An adjustable structure of a curtain for adjusting the angle of curtain blade comprises a winding tube disposed in an upper rail of a curtain, a pulling string for controlling the rise and fall of the curtain winds around the winding tube and is then passed through curtain blades. One end of the winding tube is disposed with a rubbing wheel for hanging the top end of a suspending string that is provided for insertion of the curtain blades. Thereby during the rise and fall of the curtain blades, the suspending string is pulled towards the rotating direction of the winding tube firstly, so that the angle of the curtain blades is adjusted.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 14, 2008
    Inventor: Ke-Min Lin
  • Publication number: 20070276101
    Abstract: Embodiments of the polymerization process of the present invention are directed to polymerizing free radically polymerizable monomers in the presence of a polymerization medium initially comprising at least one transition metal catalyst and an atom transfer radical polymerization initiator. The polymerization medium may additionally comprise a reducing agent. The reducing agent may be added initially or during the polymerization process in a continuous or intermittent manner. The polymerization process may further comprise reacting the reducing agent with at least one of the transition metal catalyst in an oxidized state and a compound comprising a radically transferable atom or group to form a compound that does not participate significantly in control of the polymerization process.
    Type: Application
    Filed: March 7, 2005
    Publication date: November 29, 2007
    Applicant: CARNEGIE MELLON UINIVERSITY
    Inventors: Krzysztof Matyjaszewski, Lindsay Bombalski, Wojciech Jakubowski, Ke Min, James Spanswick, Nicolay Tsarevsky
  • Patent number: 7290582
    Abstract: A roman shade includes a headrail, a plurality of tracks each mounted on the headrail, a plurality of suspension members each mounted on a respective one of the tracks and each having an inside formed with a locking groove, and a shade cloth having an upper end extended through and detachably locked in the locking groove of each of the suspension members. Thus, the shade cloth is attached to the headrail by the tracks and the suspension members so that the shade cloth is combined with the headrail rigidly and stably.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: November 6, 2007
    Inventor: Ke-Min Lin
  • Patent number: 7264034
    Abstract: A motorized blind includes a headrail, a bottom rail, a drive shaft, an actuating device, and a power supply device. Thus, the battery of the power supply device is mounted in the bottom rail, so that the battery can be removed from the bottom rail easily and conveniently, thereby facilitating a user replacing or charging the battery of the power supply device when the electric power is not sufficient.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: September 4, 2007
    Inventor: Ke-Min Lin
  • Publication number: 20070169898
    Abstract: A winding device for a Venetian blind includes a winding rod for winding and unwinding at least one pull cord, and a cord guide mechanism mounted on the winding rod and having a cord guide hole parallel with the winding rod. Thus, the pull cord is wound around the winding rod in a parallel manner, so that the pull cord is not deflected, overlapped or tangled on the winding rod during the winding process due to a vibration produced by the pulling force of the winding device, and the pull cord is in turn wound around the winding rod smoothly and evenly.
    Type: Application
    Filed: January 25, 2006
    Publication date: July 26, 2007
    Inventor: Ke-Min Lin
  • Publication number: 20070169897
    Abstract: A winding device for a Venetian blind includes at least one support seat secured to a headrail to correspond to the position of at least one pull cord and having an inside formed with a through hole and a side formed with a guide hole, and at least one slide bushing mounted on a drive shaft to rotate therewith and pivotally mounted in the through hole of the at least one support seat. Thus, the wound pull cord pushes the slide bushing to move relative to the support seat during rotation of the slide bushing, so that the pull cord is wound around the slide bushing smoothly by movement of the slide bushing so as to lift the pull cord smoothly.
    Type: Application
    Filed: January 25, 2006
    Publication date: July 26, 2007
    Inventor: Ke-Min Lin
  • Publication number: 20060237145
    Abstract: A roman shade includes a headrail, a plurality of tracks each mounted on the headrail, a plurality of suspension members each mounted on a respective one of the tracks and each having an inside formed with a locking groove, and a shade cloth having an upper end extended through and detachably locked in the locking groove of each of the suspension members. Thus, the shade cloth is attached to the headrail by the tracks and the suspension members so that the shade cloth is combined with the headrail rigidly and stably.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 26, 2006
    Inventor: Ke-Min Lin
  • Patent number: 7096918
    Abstract: A winding device includes a headrail, a winding drum, a pull cord, a carriage member, and a guide member. The winding drum is mounted on the headrail, is operable so as to rotate relative to the headrail, and has threaded and smooth drum portions. The pull cord extends through the headrail and is secured to the smooth drum portion. The carriage member threadedly engages the threaded drum portion, and is movable along the threaded drum portion when the winding drum is rotated so as to wind the pull cord on the smooth drum portion. The guide member is coupled to the carriage member so as to be co-movable therewith, and guides the pull cord such that winding turns of the pull cord on the smooth drum portion are formed adjacent to one another without overlapping.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: August 29, 2006
    Inventor: Ke-Min Lin
  • Publication number: 20060162874
    Abstract: A motorized blind includes a headrail, a bottom rail, a drive shaft, an actuating device, and a power supply device. Thus, the battery of the power supply device is mounted in the bottom rail, so that the battery can be removed from the bottom rail easily and conveniently, thereby facilitating a user replacing or charging the battery of the power supply device when the electric power is not sufficient.
    Type: Application
    Filed: January 25, 2005
    Publication date: July 27, 2006
    Inventor: Ke-Min Lin
  • Publication number: 20060070706
    Abstract: A winding device includes a headrail, a winding drum, a pull cord, a carriage member, and a guide member. The winding drum is mounted on the headrail, is operable so as to rotate relative to the headrail, and has threaded and smooth drum portions. The pull cord extends through the headrail and is secured to the smooth drum portion. The carriage member threadedly engages the threaded drum portion, and is movable along the threaded drum portion when the winding drum is rotated so as to wind the pull cord on the smooth drum portion. The guide member is coupled to the carriage member so as to be co-movable therewith, and guides the pull cord such that winding turns of the pull cord on the smooth drum portion are formed adjacent to one another without overlapping.
    Type: Application
    Filed: October 4, 2004
    Publication date: April 6, 2006
    Inventor: Ke-Min Lin
  • Patent number: 6918424
    Abstract: A cord winding device includes a cord adapted to lift and lower a blind, a winding screw which is rotatable for winding and unwinding the cord and which has a screw thread portion, and a guide body sleeved on the winding screw. The guide body and the winding screw make an axial movement relative to each other upon rotation of the winding screw. The guide body includes an inner thread threadedly engaging the screw thread portion, and a cord-pulling member formed with a hole. The cord passes through the hole, and has one end fixed to the winding screw. The cord is pulled by the cord-pulling member to be wound up around the screw thread portion upon rotation of the winding screw.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: July 19, 2005
    Inventor: Ke-Min Lin
  • Publication number: 20050109472
    Abstract: A cord winding device includes a cord adapted to lift and lower a blind, a winding screw which is rotatable for winding and unwinding the cord and which has a screw thread portion, and a guide body sleeved on the winding screw. The guide body and the winding screw make an axial movement relative to each other upon rotation of the winding screw. The guide body includes an inner thread threadedly engaging the screw thread portion, and a cord-pulling member formed with a hole. The cord passes through the hole, and has one end fixed to the winding screw. The cord is pulled by the cord-pulling member to be wound up around the screw thread portion upon rotation of the winding screw.
    Type: Application
    Filed: November 21, 2003
    Publication date: May 26, 2005
    Inventor: Ke-Min Lin