Patents by Inventor Cheng Tu

Cheng Tu 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: 11695382
    Abstract: A method includes depositing a first metal layer on a semiconductor substrate; etching the first metal layer to form a first electrode having a first lead; depositing a piezoelectric layer on the semiconductor substrate and first electrode; etching the piezoelectric layer to a shape of the gyrator to be formed within the circulator; depositing a second metal layer on the piezoelectric layer; etching the second metal layer to form a second electrode having a second lead, the second electrode being positioned opposite the first electrode, wherein the first lead and the second lead form an electrical port; depositing a magnetostrictive layer on the second electrode; etching the magnetostrictive layer to approximately the shape of the piezoelectric layer; depositing a third metal layer on the magnetostrictive layer; and etching the third metal layer to form a metal coil that has a gap on one side to define a magnetic port.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: July 4, 2023
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Songbin Gong, Ruochen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Patent number: 10837754
    Abstract: A wireless passive strain sensor is provided. The wireless passive strain sensor includes an outer coil holder, a reading inductance coil, a capacitance patch, an inner coil holder, and a sensing inductance coil. A shaft penetrates through the outer coil holder. The reading inductance coil is disposed on the outer coil holder. The capacitance patch is disposed on the shaft. The inner coil holder is disposed inside the outer coil holder. The inner coil holder is disposed on the shaft. The sensing inductance coil is disposed on the inner coil holder. The sensing inductance coil is electrically connected to the capacitance patch.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: November 17, 2020
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Wen-Syang Hsu, Sung-Yueh Wu, Cheng Tu, Chia-Min Chao
  • Publication number: 20200350884
    Abstract: A method includes depositing a first metal layer on a semiconductor substrate; etching the first metal layer to form a first electrode having a first lead; depositing a piezoelectric layer on the semiconductor substrate and first electrode; etching the piezoelectric layer to a shape of the gyrator to be formed within the circulator; depositing a second metal layer on the piezoelectric layer; etching the second metal layer to form a second electrode having a second lead, the second electrode being positioned opposite the first electrode, wherein the first lead and the second lead form an electrical port; depositing a magnetostrictive layer on the second electrode; etching the magnetostrictive layer to approximately the shape of the piezoelectric layer; depositing a third metal layer on the magnetostrictive layer; and etching the third metal layer to form a metal coil that has a gap on one side to define a magnetic port.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Songbin Gong, Ruochen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Patent number: 10727804
    Abstract: An integrated circuit is a layered device, on a semiconductor substrate, which contains metal electrodes that sandwich a piezoelectric layer, followed by a magnetostrictive layer and a metal coil. The metal electrodes define an electrical port across which to receive an alternating current (AC) voltage, which is applied across the piezoelectric layer to cause a time-varying strain in the piezoelectric layer. The magnetostrictive layer is to translate the time-varying strain, received by way of a vibration mode from interaction with the piezoelectric layer, into a time-varying electromagnetic field. The metal coil, disposed on the magnetostrictive layer, includes a magnetic port at which to induce a current based on exposure to the time-varying electromagnetic field generated by the magnetostrictive layer.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 28, 2020
    Assignee: Board of Trustees of the University of Illinois
    Inventors: Songbin Gong, Ruochen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Publication number: 20190301847
    Abstract: A wireless passive strain sensor is provided. The wireless passive strain sensor includes an outer coil holder, a reading inductance coil, a capacitance patch, an inner coil holder, and a sensing inductance coil. A shaft penetrates through the outer coil holder. The reading inductance coil is disposed on the outer coil holder. The capacitance patch is disposed on the shaft. The inner coil holder is disposed inside the outer coil holder. The inner coil holder is disposed on the shaft. The sensing inductance coil is disposed on the inner coil holder. The sensing inductance coil is electrically connected to the capacitance patch.
    Type: Application
    Filed: February 4, 2019
    Publication date: October 3, 2019
    Inventors: WEN-SYANG HSU, SUNG-YUEH WU, CHENG TU, CHIA-MIN CHAO
  • Publication number: 20180115294
    Abstract: An integrated circuit is a layered device, on a semiconductor substrate, which contains metal electrodes that sandwich a piezoelectric layer, followed by a magnetostrictive layer and a metal coil. The metal electrodes define an electrical port across which to receive an alternating current (AC) voltage, which is applied across the piezoelectric layer to cause a time-varying strain in the piezoelectric layer. The magnetostrictive layer is to translate the time-varying strain, received by way of a vibration mode from interaction with the piezoelectric layer, into a time-varying electromagnetic field. The metal coil, disposed on the magnetostrictive layer, includes a magnetic port at which to induce a current based on exposure to the time-varying electromagnetic field generated by the magnetostrictive layer.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 26, 2018
    Inventors: Songbin Gong, Rouchen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Patent number: 8467181
    Abstract: A fixing mechanism for fixing a portable device includes a casing. A track is disposed on the casing for guiding the portable device to slide. At least one hole is formed on the casing. The fixing mechanism further includes at least one spherical component installed inside the hole on the casing for wedging into a sunken part on the portable device so as to fix the portable device inside the casing. The fixing mechanism further includes a resilient component installed on a side of the casing and the spherical component for providing resilient force to the spherical component so as to push the spherical component to wedge into the sunken part on the portable device.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: June 18, 2013
    Assignee: Aopen Inc.
    Inventors: Jo-Chiao Wang, Cheng Tu
  • Patent number: 8411425
    Abstract: An adjusting mechanism includes a stand, a vertical sliding component installed inside the stand in a slidable manner along a vertical direction relative to the stand so as to fix a vertical position of a screen. A plurality of slots is formed on a side of the vertical sliding component, and the vertical sliding component includes a plurality of inclined structures respectively formed nearby the plurality of slots. The adjusting mechanism further includes a vertical positioning device installed on a side of the stand for inserting into the slot of the vertical sliding component so as to fix the vertical position of the screen. The inclined structure is for pushing the vertical positioning device out of the slot.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 2, 2013
    Assignee: Aopen Inc.
    Inventors: Cheng Tu, Huei-Huang Suen
  • Publication number: 20110249398
    Abstract: A fixing mechanism for fixing a portable device includes a casing. A track is disposed on the casing for guiding the portable device to slide. At least one hole is formed on the casing. The fixing mechanism further includes at least one spherical component installed inside the hole on the casing for wedging into a sunken part on the portable device so as to fix the portable device inside the casing. The fixing mechanism further includes a resilient component installed on a side of the casing and the spherical component for providing resilient force to the spherical component so as to push the spherical component to wedge into the sunken part on the portable device.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 13, 2011
    Inventors: Jo-Chiao Wang, Cheng Tu
  • Publication number: 20110228456
    Abstract: An adjusting mechanism includes a stand, a vertical sliding component installed inside the stand in a slidable manner along a vertical direction relative to the stand so as to fix a vertical position of a screen. A plurality of slots is formed on a side of the vertical sliding component, and the vertical sliding component includes a plurality of inclined structures respectively formed nearby the plurality of slots. The adjusting mechanism further includes a vertical positioning device installed on a side of the stand for inserting into the slot of the vertical sliding component so as to fix the vertical position of the screen. The inclined structure is for pushing the vertical positioning device out of the slot.
    Type: Application
    Filed: September 30, 2010
    Publication date: September 22, 2011
    Inventors: Cheng Tu, Huei-Huang Suen
  • Patent number: 7815264
    Abstract: A stackable modular personal computer structure comprises a lowermost frameworks, a plurality of intermediate frameworks, an uppermost framework and an upper cover; the frameworks and the upper cover stacked with each other in a sequence; all the frameworks have the first internal engaging structure inside the tops thereof respectively, the intermediate frameworks, the uppermost framework and the upper cover each have the second internal engaging structure inside the bottoms thereof respectively; the bottoms of each of the intermediate and the uppermost frameworks has a hole especially for electric wires to pass through to enable the modular personal computer so that a consistent outlook for the computer structure can be obtained.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: October 19, 2010
    Assignee: Aopen Inc.
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Patent number: 7697284
    Abstract: A framework structure for a computer main frame, comprises an outer frame and an inner frame in which the inner frame is combined with an inner portion of the outer frame. A rear end of a first plate is pivotally connected to a bottom of the inner frame, and a front end of the first plate is combined with a downside of a bottom of the inner frame and positioned on a downside of a first hole of the inner frame. A hard drive can be locked on an upside of the first plate. Bottom ends of a plurality of shafts are respectively combined with the inner frame so as to use upper ends of the shafts to combine with a motherboard to allow the hard drive to be positioned below the motherboard.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: April 13, 2010
    Assignee: AOPEN, Inc.
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Patent number: 7529096
    Abstract: A common framework for a stackable modular personal computer comprises an outer frame and an inner frame and is capable of accepting an expansion card connecter and an expansion card projected out to an inner space thereof from a lower layer thereof. The inner frame can further be combined with a supporting frame use for combining with a CD-ROM drive or a hard disk driver. Whereby, one same common framework can have three different uses so as to attain to the function of one framework with multiple uses to save the cost for manufacturing different frameworks.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: May 5, 2009
    Assignee: AOPEN Inc.
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Patent number: 7440268
    Abstract: A computer case includes a primary frame body formed from a plurality of primary supports, a cover case mounted on the outside of the primary frame body, and a power supply coupled to the rear area of the primary frame body. The computer case preferably also includes a power supply support frame so that the power supply can be fixed, in a steady manner, onto the primary frame body. In addition, for the ornamental purposes, an ornamental case can be coupled to the outside of the power supply.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: October 21, 2008
    Assignee: AOPEN Inc.
    Inventors: Jui-Hu Lan, Cheng Tu, Chun-Chang Lai, Te-An Lin
  • Publication number: 20080061661
    Abstract: A common framework for a stackable modular personal computer comprises an outer frame and an inner frame and is capable of accepting an expansion card connecter and an expansion card projected out to an inner space thereof from a lower layer thereof. The inner frame can further be combined with a supporting frame use for combining with a CD-ROM drive or a hard disk driver. Whereby, one same common framework can have three different uses so as to attain to the function of one framework with multiple uses to save the cost for manufacturing different frameworks.
    Type: Application
    Filed: March 29, 2007
    Publication date: March 13, 2008
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Publication number: 20080002346
    Abstract: A stackable modular personal computer structure, comprising a plurality of framework; the plural frameworks stacked to combine with each other in a sequence; a bottom of each other framework above the first framework which is mounted on a lowest layer has a hole for allowing at least one electric wire to be passed through to enable the electric wires of the modular personal computer and a combination structure of each layer are all hid inside the frameworks so that an identical outlook can be obtained.
    Type: Application
    Filed: February 12, 2007
    Publication date: January 3, 2008
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Publication number: 20070253159
    Abstract: A framework structure for a computer main frame, comprises an outer frame and an inner frame in which the inner frame is combined with an inner portion of the outer frame. A rear end of a first plate is pivotally connected to a bottom of the inner frame, and a front end of the first plate is combined with a downside of a bottom of the inner frame and positioned on a downside of a first hole of the inner frame. A hard drive can be locked on an upside of the first plate. Bottom ends of a plurality of shafts are respectively combined with the inner frame so as to use upper ends of the shafts to combine with a motherboard to allow the hard drive to be positioned below the motherboard.
    Type: Application
    Filed: February 9, 2007
    Publication date: November 1, 2007
    Inventors: Te-An Lin, Chih-Hsiung Chen, Wu-Nan Wang, Cheng Tu, Ching-Tang Lin
  • Patent number: 7259959
    Abstract: A fastening mechanism includes a mounting seat mounted on a frame body, disposed at a mounting hole in a frame body, and configured with an accommodating space therein. The mounting seat has a mounting wall formed with an opening for access into the accommodating space, and an outer surrounding wall connected to a periphery of the mounting wall. An engaging member extends movably in the accommodating space in the mounting seat, and is operable so as to move from a releasing position, where the engaging member disengages a fastening hole in a peripheral device, to an anchoring position, where the engaging member engages the fastening hole in the peripheral device such that the peripheral device is fastened to the frame body. The engaging member can be retained releasably in a selected one of the anchoring and releasing positions.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: August 21, 2007
    Assignee: Aopen Inc.
    Inventors: Cheng Tu, Pen-Hu Lan
  • Publication number: 20070103858
    Abstract: A computer case includes a primary frame body formed from a plurality of primary supports, a cover case mounted on the outside of the primary frame body, and a power supply coupled to the rear area of the primary frame body. The computer case preferably also includes a power supply support frame so that the power supply can be fixed, in a steady manner, onto the primary frame body. In addition, for the ornamental purposes, an ornamental case can be coupled to the outside of the power supply.
    Type: Application
    Filed: May 18, 2006
    Publication date: May 10, 2007
    Applicant: AOPEN INC.
    Inventors: Jui-Hu Lan, Cheng Tu, Chun-Chang Lai, Te-An Lin
  • Publication number: 20060018091
    Abstract: A fastening mechanism includes a mounting seat mounted on a frame body, disposed at a mounting hole in a frame body, and configured with an accommodating space therein. The mounting seat has a mounting wall formed with an opening for access into the accommodating space, and an outer surrounding wall connected to a periphery of the mounting wall. An engaging member extends movably in the accommodating space in the mounting seat, and is operable so as to move from a releasing position, where the engaging member disengages a fastening hole in a peripheral device, to an anchoring position, where the engaging member engages the fastening hole in the peripheral device such that the peripheral device is fastened to the frame body. The engaging member can be retained releasably in a selected one of the anchoring and releasing positions.
    Type: Application
    Filed: April 20, 2005
    Publication date: January 26, 2006
    Inventors: Cheng Tu, Pen-Hu Lan