Patents by Inventor Hung-Chih Lu

Hung-Chih Lu 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: 20190287708
    Abstract: The large-current inductor includes a first core member having a first winding piece, a second winding piece, a first indentation, and a second indentation; a second core member having a third winding piece, a fourth winding piece, a third indentation, and a fourth indentation; a third core member attached and joined to first lateral sides of the first and second core members; and a fourth core member attached and joined to second lateral sides of the first and second core members. A first coil member winds around the first and third winding pieces, and has its ends embedded into the first and third indentations. A second coil member winds around the second and fourth winding pieces, and has its ends embedded into the second and fourth indentations. The inductor enhances efficiency of energy storage by mutual inductance, and limits large current flow by leakage inductance.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 19, 2019
    Inventors: Hsiu-Fa Yeh, Pin-Yu Chen, Hang-Chun Lu, Ya-Wen Yang, Shih-Kai Huang, Chien-Chin Chang, Hung-Chih Liang, Yu-Ting Hsu
  • Publication number: 20190145480
    Abstract: An adjustable damper includes a base, a first and second slidable members, a movable seat, a mass unit, and a first and second cantilevers. The first slidable member is slidably disposed on the base in a first direction. The movable seat is slidably disposed on the base in a second direction orthogonal to the first direction. The second slidable member is slidably disposed on the movable seat in the second direction. The mass unit is slidably disposed on the movable seat in the first direction. The first cantilever is fixed to a first connecting member. The first connecting member is connected to the movable seat. The first slidable member movably is disposed on the first cantilever. The second cantilever is fixed to a second connecting member. The second connecting member is connected to the mass unit. The second slidable member is movably disposed on the second cantilever.
    Type: Application
    Filed: December 21, 2017
    Publication date: May 16, 2019
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hung-I LU, Chien-Chih LIAO, Jen-Ji WANG, Yun-Chiao CHEN
  • Publication number: 20190148361
    Abstract: A semiconductor device includes: a metal thin film disposed on a semiconductor substrate; and first and second contact structures disposed on the metal thin film, wherein the first and second contact structures are laterally spaced from each other by a dummy layer that comprises at least one polishing resistance material.
    Type: Application
    Filed: April 28, 2018
    Publication date: May 16, 2019
    Inventors: Hung-Chih LU, Chien-Mao Chen
  • Patent number: 9170015
    Abstract: A heat dissipation structure of lighting devices is disclosed, which comprises a light emitting mechanism; a carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation unit, combined with an end of the light emitting mechanism; and a socket, electrically connected to the light emitting mechanism, and combined with an end of the carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation unit. As such, a thermal transmission efficiency is promoted, a thermal transfer bottleneck is effectively decreased, heat sink is never necessary, a heat dissipation cost is largely reduced, a volume and weight of the device is reduced, and a waste of the raw material, carbon, and energy consumption can be reduced.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 27, 2015
    Assignee: CY-D ENGINEERING CO., LTD.
    Inventors: Hung-Chih Lu, Chung-Pin Yang
  • Publication number: 20150159970
    Abstract: A thermal transfercatalytic heat dissipation method is disclosed, comprises steps of disposing a thermal transfer interface on a heat source; and disposing a carbon nanoparticles which have a hexagonal carbon ring geometry based heat dissipation film on at least a face of the thermal transfer interface, so that the hexagonal carbon ringed nanometer heat dissipation film dissipates the heat source after the thermal transfer interface absorbs the heat source, so that the heat is directed effectively to the ambient through the film, avoiding a thermal transfer drop between the thermal transfer interface and the air, and achieving in that a thermal transfer effectiveness is promoted, a thermal transfer bottleneck is effectively reduced, heat dissipation fins are saved, a heat dissipation cost is largely reduced, a volume and weight is reduced, a consumption of the raw material is reduced and a purpose of energy saving and carbon reduction is achieved.
    Type: Application
    Filed: May 28, 2014
    Publication date: June 11, 2015
    Applicant: TCY-TEC Corporation
    Inventors: Hung-Chih Lu, Chung-Pin Yang
  • Publication number: 20150159969
    Abstract: A thermal transfer catalytic heat dissipation structure is disclosed, which comprises a thermal conductive carrier; a heat source which disposed on a face of the thermal conductive carrier; and a carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation film, at least disposed on the other face of the thermal conductive carrier. A carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation film is used to dissipate a heat source when a thermal conductive carrier absorbs the heat from heat source, so that the heat is effectively transferred to the ambient through the film, avoiding a thermal transfer gap with respect to the ambient (like as air).
    Type: Application
    Filed: May 28, 2014
    Publication date: June 11, 2015
    Applicant: TCY-TEC Corporation
    Inventors: Hung-Chih Lu, Chung-Pin Yang
  • Publication number: 20150159855
    Abstract: A heat dissipation structure of lighting devices is disclosed, which comprises a light emitting mechanism; a carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation unit, combined with an end of the light emitting mechanism; and a socket, electrically connected to the light emitting mechanism, and combined with an end of the carbon nanoparticles which have hexagonal carbon ring geometry based heat dissipation unit. As such, a thermal transmission efficiency is promoted, a thermal transfer bottleneck is effectively decreased, heat sink is never necessary, a heat dissipation cost is largely reduced, a volume and weight of the device is reduced, and a waste of the raw material, carbon, and energy consumption can be reduced.
    Type: Application
    Filed: May 28, 2014
    Publication date: June 11, 2015
    Applicant: TCY-TEC Corporation
    Inventors: Hung-Chih Lu, Chung-Pin Yang
  • Patent number: 8594474
    Abstract: A Mach-Zehnder wavelength division multiplexer (WDM) is provided. The WDM has a short length with flat passband and low crosstalk. Since passband is flattened, crosstalk is reduced and length of the WDM is shortened, the WDN can be used for optical communication and optical interconnection in a single chip.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 26, 2013
    Assignee: National Central University
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Patent number: 8478091
    Abstract: A single-stage 1×5 grating-assisted wavelength division multiplexer is provided. A grating-assisted asymmetric Mach-Zehnder interferometer, a plurality of grating-assisted cross-state directional couplers and a plurality of novel side-band eliminators are combined to form the multiplexer. Only general gratings are required, not Bragg grating, for 5-channel wavelength division multiplexing in a single stage. A nearly ideal square-like band-pass filtering passband is obtained. The present disclosure can be used as a core device in IC-to-IC optical interconnects for multiplexing and demultiplexing of an optical transceiver. The present disclosure has a small size and good performance.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: July 2, 2013
    Assignee: National Central University
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Patent number: 8406579
    Abstract: A wavelength division multiplexing and optical modulation apparatus includes at least two modulation region-added grating-assisted cross-state directional coupler units and a modulation region-added cross-state directional coupler. The modulation region-added grating-assisted cross-state directional coupler units and the modulation region-added cross-state directional coupler unit are connected to one another in serial. Each of the modulation region-added grating-assisted cross-state directional coupler units each includes a modulation region-added cross-state directional coupler, a grating and a modulation region. The modulation region-added cross-state directional coupler unit includes an output waveguide, an input waveguide and a modulation region.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 26, 2013
    Assignee: National Central University
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Publication number: 20120328234
    Abstract: A low-loss optical coupling apparatus includes a silicon-on-insulator wafer, a silicon dioxide layer, a taper waveguide, a channel waveguide and a thick-film silicon dioxide layer. The silicon-on-insulator wafer is formed with a silicon substrate. The silicon dioxide layer is provided on the silicon substrate. The taper waveguide comprises a slab region formed on the silicon dioxide layer and a waveguide region formed on the slab region. An end of a chip is connected to an end of the waveguide region. The channel waveguide is formed on the slab region and connected to another end of the waveguide region. The thick-film silicon dioxide layer extends on the taper waveguide and covers the entire waveguide region.
    Type: Application
    Filed: November 10, 2011
    Publication date: December 27, 2012
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Publication number: 20120281949
    Abstract: A Mach-Zehnder wavelength division multiplexer (WDM) is provided. The WDM has a short length with flat passband and low crosstalk. Since passband is flattened, crosstalk is reduced and length of the WDM is shortened, the WDN can be used for optical communication and optical interconnection in a single chip.
    Type: Application
    Filed: January 6, 2012
    Publication date: November 8, 2012
    Applicant: National Central University
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Publication number: 20120189240
    Abstract: A wavelength division multiplexing and optical modulation apparatus includes at least two modulation region-added grating-assisted cross-state directional coupler units and a modulation region-added cross-state directional coupler. The modulation region-added grating-assisted cross-state directional coupler units and the modulation region-added cross-state directional coupler unit are connected to one another in serial. Each of the modulation region-added grating-assisted cross-state directional coupler units each includes a modulation region-added cross-state directional coupler, a grating and a modulation region. The modulation region-added cross-state directional coupler unit includes an output waveguide, an input waveguide and a modulation region.
    Type: Application
    Filed: March 2, 2011
    Publication date: July 26, 2012
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Publication number: 20120189249
    Abstract: A single-stage 1×5 grating-assisted wavelength division multiplexer is provided. A grating-assisted asymmetric Mach-Zehnder interferometer, a plurality of grating-assisted cross-state directional couplers and a plurality of novel side-band eliminators are combined to form the multiplexer. Only general gratings are required, not Bragg grating, for 5-channel wavelength division multiplexing in a single stage. A nearly ideal square-like band-pass filtering passband is obtained. The present disclosure can be used as a core device in IC-to-IC optical interconnects for multiplexing and demultiplexing of an optical transceiver. The present disclosure has a small size and good performance.
    Type: Application
    Filed: May 12, 2011
    Publication date: July 26, 2012
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Hung-Chih Lu, Jen-Inn Chyi
  • Publication number: 20080089646
    Abstract: A grating device has a waveguide array cyclically arranged. A horned waveguide is used in a star coupler of the grating device. An optical signal is divided into streams. The streams are slanted from original central axes. Or, a waveguide having an asymmetrical structure is used. Thus, a flat-top pass-band of the optical signal is obtained. The present invention can be used in any optical device.
    Type: Application
    Filed: May 23, 2007
    Publication date: April 17, 2008
    Inventor: Hung-Chih Lu
  • Publication number: 20070280577
    Abstract: The present invention is an optical modulator. It is fit for various wavelengths. The present invention has a logic signal of ‘0’ with a high signal level. The present invention has a high resist to noise. The present invention has advantages of a short length and a thin width to be applied to any optoelectronic related device or system.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 6, 2007
    Inventor: Hung-Chih Lu
  • Patent number: 7302138
    Abstract: The present invention comprises an arrayed waveguide grating member, a taper multimode interference coupler and a taper optical attenuator to uniform and flatten a passband in an optical device.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: November 27, 2007
    Assignee: Way-Seen Wang
    Inventor: Hung-Chih Lu
  • Publication number: 20070071388
    Abstract: The present invention comprises an arrayed waveguide grating member, a taper multimode interference coupler and a taper optical attenuator to uniform and flatten a passband in an optical device.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 29, 2007
    Inventor: Hung-Chih Lu