Patents by Inventor Jishi Ren

Jishi Ren 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: 20170316925
    Abstract: A two-dimensional anode array or two-dimensional multi-channel anode includes a substrate, a number of conductive regions on the substrate, and a number of electrical conductors through the substrate, each connected to one of the conductive regions for receiving and readout of the signal from the photodetector or photomultiplier.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 2, 2017
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jishi Ren, Derrick K. Kress
  • Publication number: 20150237722
    Abstract: An anode array system includes a number of electrically conductive strips arranged in an array to form an anode, each of the plurality of electrically conductive strips having a first end and a second end, electrical connectors at the first end and at the second end of each of the electrically conductive strips, and a substrate at least partially supporting the electrically conductive strips, wherein the substrate is porous.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 20, 2015
    Inventors: Ruey-Jen Hwu, Jishi Ren, Laurence P. Sadwick
  • Patent number: 8723137
    Abstract: Various embodiments of a vacuum electronic device, a hybrid magnet for a vacuum electronic device and methods of making a hybrid magnet for a vacuum electronic device are disclosed herein. In one embodiment, a hybrid magnet for a vacuum electronic device includes a first magnet, a second magnet positioned in spaced-apart relation with the first magnet and defining a gap between the first magnet and the second magnet, and a non-magnetic spacer positioned in a portion of the gap between the first magnet and second magnet and connected to the first magnet and the second magnet.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: May 13, 2014
    Assignee: InnoSys, Inc
    Inventors: Ruey-Jen Hwu, Jishi Ren, Jehn-Huar Chern, Laurence P. Sadwick
  • Patent number: 8525588
    Abstract: Various apparatuses and methods for a vacuum electronic device are disclosed herein. In one embodiment, a vacuum electronic device includes a vacuum housing, an array of slow wave structures inside the vacuum housing sharing a common electron beam tunnel, an electron beam input port at a first end of the common electron beam tunnel, and an electron beam output port at a second end of the common electron beam tunnel.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 3, 2013
    Assignee: InnoSys, Inc.
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jishi Ren
  • Patent number: 8476830
    Abstract: Various embodiments of a coupled cavity traveling wave tube are disclosed herein. For example, some embodiments provide a coupled cavity traveling wave tube including a plurality of core segments arranged in spaced-apart fashion to form an electron beam tunnel, a first longitudinal member adjacent the plurality of core segments alternately extending toward and receding from successive core segments, and a second longitudinal member adjacent to the plurality of core segments alternately extending toward and receding from successive core segments. The first and second longitudinal members are offset to extend toward different core segments.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: July 2, 2013
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jishi Ren
  • Patent number: 8242696
    Abstract: Various apparatuses and methods for a vacuum electronic device are disclosed herein. In one embodiment, a vacuum electronic device includes a vacuum housing, an array of slow wave structures inside the vacuum housing sharing a common electron beam tunnel, an electron beam input port at a first end of the common electron beam tunnel, and an electron beam output port at a second end of the common electron beam tunnel.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: August 14, 2012
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jishi Ren
  • Publication number: 20120133280
    Abstract: Various embodiments of a coupled cavity traveling wave tube are disclosed herein. For example, some embodiments provide a coupled cavity traveling wave tube including a plurality of core segments arranged in spaced-apart fashion to form an electron beam tunnel, a first longitudinal member adjacent the plurality of core segments alternately extending toward and receding from successive core segments, and a second longitudinal member adjacent to the plurality of core segments alternately extending toward and receding from successive core segments.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: Ruey-Jen Hwu, Laurence P. Sadwick, Jishi Ren
  • Patent number: 7504039
    Abstract: Embodiments of the present invention include helical, ring bar and tunnel ladder slow wave structures (SWSs). Embodiments of methods of micro-fabricating such SWSs are also disclosed. Embodiments of high frequency electromagnetic devices including such SWSs are also disclosed. Exemplary high frequency electromagnetic devices may include a traveling wave tube, a traveling wave tube amplifier, a back wave oscillator, as part of a linear accelerator, a microwave power module, a klystron or a millimeter-wave power module.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: March 17, 2009
    Assignee: Innosys, Inc.
    Inventors: Laurence P. Sadwick, Jehn-Huar Chern, Ruey-Jen Hwu, Jishi Ren, Ding Wu, Ching-Hsi Lin
  • Publication number: 20060057504
    Abstract: Embodiments of the present invention include helical, ring bar and tunnel ladder slow wave structures (SWSs). Embodiments of methods of micro-fabricating such SWSs are also disclosed. Embodiments of high frequency electromagnetic devices including such SWSs are also disclosed. Exemplary high frequency electromagnetic devices may include a traveling wave tube, a traveling wave tube amplifier, a back wave oscillator, as part of a linear accelerator, a microwave power module, a klystron or a millimeter-wave power module.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 16, 2006
    Inventors: Laurence Sadwick, Jehn-Huar Chern, Ruey-Jen Hwu, Jishi Ren, Ding Wu, Ching-Hsi Lin
  • Publication number: 20040012474
    Abstract: A vertical transformer that comprises a primary and a secondary winding, wherein one winding is positioned on a first plane, and the other winding is positioned on a second plane. The primary and secondary windings are separated by a dielectric substrate. In one embodiment, the primary and secondary windings are configured to use the same ground reference, and terminals in the center of each winding are connected to the ground reference by a via hole to form an in-phase transformer. In a second embodiment, a center terminal of one winding and an outbound terminal of the other winding are connected to the ground reference to form an opposite-phase transformer. In the second embodiment, a dielectric substrate is positioned between one of the windings and a ground plane.
    Type: Application
    Filed: December 30, 2002
    Publication date: January 22, 2004
    Inventors: Ruey-Jen Hwu, Jishi Ren
  • Patent number: 6501363
    Abstract: A vertical transformer that comprises a primary and a secondary winding, wherein one winding is positioned on a first plane, and the other winding is positioned on a second plane. The primary and secondary windings are separated by a dielectric substrate. In one embodiment, the primary and secondary windings are configured to use the same ground reference, and terminals in the center of each winding are connected to the ground reference by a via hole to form an in-phase transformer. In a second embodiment, a center terminal of one winding and an outbound terminal of the other winding are connected to the ground reference to form an opposite-phase transformer. In the second embodiment, a dielectric substrate is positioned between one of the windings and a ground plane.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: December 31, 2002
    Assignee: InnoSys, Inc.
    Inventors: Ruey-Jen Hwu, Jishi Ren