Patents by Inventor Sei-Joo Jang

Sei-Joo Jang 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: 9948169
    Abstract: A repulsive force conversion drive system for centrifugal force conversion to drive a load. A operational load to be driven by movement and provide external power due to movement of the operational load. A rotary repulsive force conversion drive connected to the operational load, such that the operational load moves in a first linear direction due to centrifugal force of rotating mass of the rotary repulsive force conversion drive. A linear repulsive force conversion drive connected to the operational load, the linear repulsive force conversion drive connected to the operational load such that the operational load moves is a second linear direction that is opposite the first linear direction on command from the linear repulsive force conversion drive.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: April 17, 2018
    Inventor: Sei-Joo Jang
  • Publication number: 20150333608
    Abstract: A repulsive force conversion drive system for centrifugal force conversion to drive a load. A operational load to be driven by movement and provide external power due to movement of the operational load. A rotary repulsive force conversion drive connected to the operational load, such that the operational load moves in a first linear direction due to centrifugal force of rotating mass of the rotary repulsive force conversion drive. A linear repulsive force conversion drive connected to the operational load, the linear repulsive force conversion drive connected to the operational load such that the operational load moves is a second linear direction that is opposite the first linear direction on command from the linear repulsive force conversion drive.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 19, 2015
    Inventor: Sei-Joo Jang
  • Patent number: 9124163
    Abstract: A repulsive force conversion drive system for centrifugal force conversion to drive a load. A operational load to be driven by movement and provide external power due to movement of the operational load. A rotary repulsive force conversion drive connected to the operational load, such that the operational load moves in a first linear direction due to centrifugal force of rotating mass of the rotary repulsive force conversion drive. A linear repulsive force conversion drive connected to the operational load, the linear repulsive force conversion drive connected to the operational load such that the operational load moves is a second linear direction that is opposite the first linear direction on command from the linear repulsive force conversion drive.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 1, 2015
    Inventor: Sei-Joo Jang
  • Patent number: 8770780
    Abstract: A building block having at least one shape in the building block which includes a sealed volume surrounded by the shape, where the shape includes a transparent front and transparent rear to allow light to pass through the front and the rear and enter into a building partially or fully covered by the building block. There is at least one iris aperture diaphragm on the rear of each of at least one shape which is positioned to let all light pass into the building, each of the at least one iris aperture diaphragm having an adjustable opening to control how much light passes into the building.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: July 8, 2014
    Inventors: Tyson E. Jang, Sei-Joo Jang
  • Publication number: 20130127279
    Abstract: A repulsive force conversion drive system for centrifugal force conversion to drive a load. A operational load to be driven by movement and provide external power due to movement of the operational load. A rotary repulsive force conversion drive connected to the operational load, such that the operational load moves in a first linear direction due to centrifugal force of rotating mass of the rotary repulsive force conversion drive. A linear repulsive force conversion drive connected to the operational load, the linear repulsive force conversion drive connected to the operational load such that the operational load moves is a second linear direction that is opposite the first linear direction on command from the linear repulsive force conversion drive.
    Type: Application
    Filed: December 7, 2012
    Publication date: May 23, 2013
    Inventor: Sei-Joo Jang
  • Publication number: 20110074504
    Abstract: A multi mode power output module for use with RF signal amplification system. The multi mode power output module includes at least two power sources; a multiple of output power circuits associated with each of the at least two power sources; a first switch to switch between the at least two power sources, where the first switch provides power from at least two power sources to the output power circuit to amplify an RF signal associated with a lowest power output level; and second switch to switch between an RF output and the multiple of output power circuits to select a output power circuit associated with one of the at least two power sources that is also connected to the RF output.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Inventor: Sei-Joo Jang
  • Publication number: 20110076974
    Abstract: A flexible wireless network system adapted for switching to a desired frequency and efficiently amplifying signal strength of an input RF signal of the desired frequency in wireless communications while meeting ACLR requirements. The system includes an input source to receive the input RF signal, a input filter bank RF amplifier, a pre-distortion engine, a high gain amplifier connected to the pre-distortion engine, a filter module, a low gain amplifier connected to the filter module, an output antenna connected to the low gain amplifier, a computer to control switching in the input filter bank and the filter module so that the correct filters are used with the input RF signal. The input filter bank and FM Filter banks include a filter capable of switching between a multiple of frequencies so that the frequency of the input RF signal can be selected and received into the system from the input source.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Inventor: Sei-Joo Jang
  • Patent number: 7884507
    Abstract: The present invention is a remote electrical equipment power source. The remote electrical equipment power source includes an electrical generator adapted to power remote electrical equipment and a repulsive force conversion drive. The repulsive force conversion drive includes at least two repulsive units to repulse each other. One unit is fixed, while the second is movably suspended. There is a motion inducing plate positioned between the two repulsive units and movable between the two repulsive units. The first motion inducing plate is of a material that reduces the repulsive force between the two repulsive units. There is a drive mechanism connected to second repulsive unit.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 8, 2011
    Inventors: Sei-Joo Jang, Gyu-Seop Hyun
  • Patent number: 7741754
    Abstract: A polymer bulk acoustic resonator that includes an active semiconductor layer, a first thin film electrode layer applied to the semiconductor layer, a thin film electro-active polymer layer applied to the first thin film electrode layer; and a second thin film electrode layer applied to the thin film electro-active polymer layer.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: June 22, 2010
    Inventor: Sei-Joo Jang
  • Publication number: 20100130154
    Abstract: An amplification system including a high gain amplifier, filter module and low gain amplifier. The high gain amplifier for receiving an input RF signal and processing the input RF signal to produce a first amplified signal while the high gain amplifier is operating near its saturation point. The filter module having at least one band pass filter to receive the first amplified signal and process the first amplified signal to remove unwanted characteristics of the first amplified signal to produce a processed first amplified signal. The low gain amplifier receiving the processed first amplified signal and processing the processed first amplified signal to produce a second amplified signal that has an increase in signal strength over the processed first amplified signal while the low gain amplifier is operating near its saturation point.
    Type: Application
    Filed: January 30, 2009
    Publication date: May 27, 2010
    Inventors: Sei-Joo Jang, Haengseob Kim, Donghyun Yoo
  • Publication number: 20100130145
    Abstract: An amplification system including a high gain amplifier, filter module and low gain amplifier. The high gain amplifier for receiving an input RF signal and processing the input RF signal to produce a first amplified signal while the high gain amplifier is operating near its saturation point. The filter module having at least one band pass filter to receive the first amplified signal and process the first amplified signal to remove unwanted characteristics of the first amplified signal to produce a processed first amplified signal. The low gain amplifier receiving the processed first amplified signal and processing the processed first amplified signal to produce a second amplified signal that has an increase in signal strength over the processed first amplified signal while the low gain amplifier is operating near its saturation point.
    Type: Application
    Filed: January 31, 2009
    Publication date: May 27, 2010
    Inventor: Sei-Joo Jang
  • Publication number: 20100079023
    Abstract: A repulsive force conversion drive system for centrifugal force conversion to drive a load. A movable load to be driven by movement and provide external power due to movement of the movable load. A rotary repulsive force conversion drive connected to the movable load, such that the movable load moves in a first linear direction due to centrifugal force of rotating mass of the rotary repulsive force conversion drive. A linear repulsive force conversion drive connected to the movable load, the linear repulsive force conversion drive connected to the movable load such that the movable load moves is a second linear direction that is opposite the first linear direction on command from the linear repulsive force conversion drive.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 1, 2010
    Inventor: Sei-Joo Jang
  • Patent number: 7486003
    Abstract: A polymer bulk acoustic resonator that includes an active semiconductor layer, a first thin film electrode layer applied to the semiconductor layer, a thin film electro-active polymer layer applied to the first thin film electrode layer; and a second thin film electrode layer applied to the thin film electro-active polymer layer.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: February 3, 2009
    Inventor: Sei-Joo Jang
  • Publication number: 20090010584
    Abstract: The present invention is a bearing assembly for a support frame and shaft with a shoulder. The bearing assembly includes balls. There is an outer race frame with a race to receive balls. The outer race frame is adapted to be mounted to the support frame. There is an inner race frame with a race to receive the balls. The inner race frame is adapted to be mounted to a shaft with a shoulder. The inner race frame and the outer race frame connect together to encase the balls. The inner race frame and the outer race frame together form an outside diameter measurement value and inside diameter measurement value of the bearing assembly. The inner race includes a shoulder surface contact area to be in contact with the shoulder which is at least ninety-five percent of thickness area of the bearing assembly.
    Type: Application
    Filed: August 8, 2007
    Publication date: January 8, 2009
    Inventors: Sei-Joo Jang, Gyu-Seop Hyun
  • Publication number: 20080296982
    Abstract: The present invention is a remote electrical equipment power source. The remote electrical equipment power source includes an electrical generator adapted to power remote electrical equipment and a repulsive force conversion drive. The repulsive force conversion drive includes at least two repulsive units to repulse each other. One unit is fixed, while the second is movably suspended. There is a motion inducing plate positioned between the two repulsive units and movable between the two repulsive units. The first motion inducing plate is of a material that reduces the repulsive force between the two repulsive units. There is a drive mechanism connected to second repulsive unit.
    Type: Application
    Filed: August 8, 2007
    Publication date: December 4, 2008
    Inventors: Sei-Joo Jang, GYU-SEOP HYUN
  • Publication number: 20080296987
    Abstract: The present invention is a repulsive force conversion drive. The repulsive force conversion drive includes at least two repulsive units to repulse each other. One unit is fixed, while the second is movably suspended. There is a motion inducing plate positioned between the two repulsive units and movable between the two repulsive units. The first motion inducing plate is of a material that reduces the repulsive force between the two repulsive units. There is a drive mechanism connected to second repulsive unit.
    Type: Application
    Filed: August 8, 2007
    Publication date: December 4, 2008
    Inventors: Sei-Joo Jang, Gyu-Seop Hyun
  • Publication number: 20080104813
    Abstract: A polymer bulk acoustic resonator that includes an active semiconductor layer, a first thin film electrode layer applied to the semiconductor layer, a thin film electro-active polymer layer applied to the first thin film electrode layer; and a second thin film electrode layer applied to the thin film electro-active polymer layer.
    Type: Application
    Filed: January 3, 2008
    Publication date: May 8, 2008
    Inventors: Sei-Joo Jang, Qiming Zhang
  • Patent number: 7362035
    Abstract: A polymer bulk acoustic resonator that includes an active semiconductor layer, a first thin film electrode layer applied to the semiconductor layer, a thin film electro-active polymer layer applied to the first thin film electrode layer; and a second thin film electrode layer applied to the thin film electro-active polymer layer.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: April 22, 2008
    Assignee: The Penn State Research Foundation
    Inventors: Sei-Joo Jang, Qiming Zang
  • Publication number: 20070063793
    Abstract: A polymer bulk acoustic resonator that includes an active semiconductor layer, a first thin film electrode layer applied to the semiconductor layer, a thin film electro-active polymer layer applied to the first thin film electrode layer; and a second thin film electrode layer applied to the thin film electro-active polymer layer.
    Type: Application
    Filed: May 4, 2006
    Publication date: March 22, 2007
    Inventors: Sei-Joo Jang, Qiming Zhang
  • Patent number: 6975181
    Abstract: A new type of dielectric resonator loaded metal cavity filters that are compact and resonate only the desired frequency, along with a method of making such filters. The more compact dielectric resonator loaded metal cavity filter is made by a method of stacking resonator loaded cavities into a filter. A method of making a dielectric resonator filter or duplexer filter which inhibits the undesired higher order harmonics from passing through the filter. Whereby, the method for inhibiting higher order harmonics includes differentiating sizes of the dielectric resonator and metal cavity as compare to other cavities in the filter to prevent the passage of undesired higher order harmonics through the filter.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: December 13, 2005
    Inventor: Sei-Joo Jang