Patents by Inventor Pei-Ching Liu

Pei-Ching Liu 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: 20240071504
    Abstract: A memory device is provided, including a memory array, a driver circuit, and recover circuit. The memory array includes multiple memory cells. Each memory cell is coupled to a control line, a data line, and a source line and, during a normal operation, is configured to receive first and second voltage signals. The driver circuit is configured to output at least one of the first voltage signal or the second voltage signal to the memory cells. The recover circuit is configured to output, during a recover operation, a third voltage signal, through the driver circuit to at least one of the memory cells. The third voltage signal is configured to have a first voltage level that is higher than a highest level of the first voltage signal or the second voltage signal, or lower than a lowest level of the first voltage signal or the second voltage signal.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Pei-Chun LIAO, Yu-Kai CHANG, Yi-Ching LIU, Yu-Ming LIN, Yih WANG, Chieh LEE
  • Patent number: 11795245
    Abstract: A hydrophobic polyvinyl alcohol and a method for preparing hydrophobic polyvinyl alcohol are provided. The hydrophobic polyvinyl alcohol includes a first repeat unit represented by Formula (I), a second repeat unit represented by Formula (II), and a third repeat unit represented by Formula (III) wherein R1 is —Si(R2)3, R2 is independently C1-6 alkoxy group, C6-18 alkyl group, or C6-22 alkenyl group, and at least one R2 is C6-18 alkyl group or C6-22 alkenyl group; R3 and R4 are independently C6-18 alkyl group or C6-22 alkenyl group; j is 3 to 7; and k is 1 to 30.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: October 24, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Chun Liu, Pei-Ching Liu, Ting-Ting Chang, Tien-Shou Shieh
  • Publication number: 20230174686
    Abstract: A hydrophobic polyvinyl alcohol and a method for preparing hydrophobic polyvinyl alcohol are provided. The hydrophobic polyvinyl alcohol includes a first repeat unit represented by Formula (I), a second repeat unit represented by Formula (II), and a third repeat unit represented by Formula (III) wherein R1 is —Si(R2)3, R2 is independently C1-6 alkoxy group, C6-18 alkyl group, or C6-22 alkenyl group, and at least one R2 is C6-18 alkyl group or C6-22 alkenyl group; R3 and R4 are independently C6-18 alkyl group or C6-22 alkenyl group; j is 3 to 7; and k is 1 to 30.
    Type: Application
    Filed: June 22, 2022
    Publication date: June 8, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yi-Chun LIU, Pei-Ching LIU, Ting-Ting CHANG, Tien-Shou SHIEH
  • Publication number: 20220342182
    Abstract: A fixed-focus lens includes an anti-radiation first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in order in a direction. An aperture stop is disposed between the first lens and the fourth lens. A ratio of a lens diameter of the first lens to an overall length is within a range of 0.4 to 0.5, where the overall length is an axial distance between an outer surface of the first lens and an outer surface of the seventh lens. Each of the first lens to the seventh lens is a spherical glass lens.
    Type: Application
    Filed: April 15, 2022
    Publication date: October 27, 2022
    Inventors: Pei-Ching LIU, Kuo-Chuan WANG
  • Patent number: 10962749
    Abstract: An optical lens includes, in order along a direction, an aperture stop and a lens group with a positive refractive power. The aperture stop is disposed at an outermost side of all lenses of the optical lens, and the lens group has at least four lenses. At least one of the four lenses is an aspheric lens, and each of the four lenses has a clear aperture of smaller than 14 mm.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 30, 2021
    Assignee: Young Optics Inc.
    Inventors: Kai-Yun Chen, Pei-Ching Liu, Kuo-Chuan Wang
  • Publication number: 20190025558
    Abstract: On embodiment of the invention provides an optical lens including, in order along a direction, an aperture stop and a lens group with a positive refractive power. The aperture stop is disposed at an outermost side of all lenses of the optical lens, and the lens group has at least four lenses. At least one of the four lenses is an aspheric lens, and each of the four lenses has a clear aperture of smaller than 14 mm.
    Type: Application
    Filed: July 18, 2018
    Publication date: January 24, 2019
    Inventors: KAI-YUN CHEN, PEI-CHING LIU, KUO-CHUAN WANG
  • Patent number: 9843012
    Abstract: The present disclosure provides a top emitting organic electroluminescent device including a first scattering layer, and a first electrode, at least one organic material layer, a second electrode and a second scattering layer formed on the first scattering layer sequentially. The first scattering layer contains a plurality of micro-particles that are 10 to 90 wt % of the first scattering layer.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: December 12, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Jung-Yu Liao, Tien-Shou Shieh, Pei-Ching Liu
  • Patent number: 9541747
    Abstract: A zoom lens including a first lens group and a second lens group is provided. Refractive powers of the first lens group and the second lens group are respectively negative and positive. The first lens group includes a first lens, a second lens, and a third lens arranged in sequence from an object side to an image side. The second lens group is disposed between the first lens group and the image side, and includes a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens arranged in sequence from the object side to the image side. The zoom lens satisfies ?2.4<f1/fw<?1.0, wherein f1 is the effective focal length of the first lens group, and fw is the effective focal length of the zoom lens at a wide end.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: January 10, 2017
    Assignee: Young Optics Inc.
    Inventors: Yu-Hung Chou, Pei-Ching Liu
  • Publication number: 20160190498
    Abstract: The present disclosure provides a top emitting organic electroluminescent device including a first scattering layer, and a first electrode, at least one organic material layer, a second electrode and a second scattering layer formed on the first scattering layer sequentially. The first scattering layer contains a plurality of micro-particles that are 10 to 90 wt % of the first scattering layer.
    Type: Application
    Filed: December 26, 2014
    Publication date: June 30, 2016
    Applicant: Industrial Technology Research Institute
    Inventors: Jung-Yu Liao, Tien-Shou Shieh, Pei-Ching Liu
  • Patent number: 9096708
    Abstract: A partially esterified epoxy resin and an epoxy resin composition applied with the same, and a method for preparing the composition are provided. The preparation method includes the following steps. A bifunctional epoxy resin and an anhydride are mixed and heated, wherein the number of equivalent moles of the bifunctional epoxy resin is greater than that of the anhydride, to form a partially esterified epoxy resin. A curing agent is mixed into the partially esterified epoxy resin to form a mixed solution. The mixed solution is cured to form the partially esterified epoxy resin composition.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: August 4, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Tien-Shou Shieh, Chih-Hsiang Ho, Pei-Ching Liu
  • Publication number: 20140320978
    Abstract: A zoom lens including a first lens group and a second lens group is provided. Refractive powers of the first lens group and the second lens group are respectively negative and positive. The first lens group includes a first lens, a second lens, and a third lens arranged in sequence from an object side to an image side. The second lens group is disposed between the first lens group and the image side, and includes a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens arranged in sequence from the object side to the image side. The zoom lens satisfies ?2.4<f1/fw<?1.0, wherein f1 is the effective focal length of the first lens group, and fw is the effective focal length of the zoom lens at a wide end.
    Type: Application
    Filed: December 25, 2013
    Publication date: October 30, 2014
    Applicant: YOUNG OPTICS INC.
    Inventors: Yu-Hung Chou, Pei-Ching Liu
  • Publication number: 20140113994
    Abstract: A partially esterified epoxy resin and an epoxy resin composition applied with the same, and a method for preparing the composition are provided. The preparation method includes the following steps. A bifunctional epoxy resin and an anhydride are mixed and heated, wherein the number of equivalent moles of the bifunctional epoxy resin is greater than that of the anhydride, to form a partially esterified epoxy resin. A curing agent is mixed into the partially esterified epoxy resin to form a mixed solution. The mixed solution is cured to form the partially esterified epoxy resin composition.
    Type: Application
    Filed: February 11, 2013
    Publication date: April 24, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tien-Shou SHIEH, Chih-Hsiang HO, Pei-Ching LIU
  • Patent number: 8604102
    Abstract: The disclosure provides a thermosetting composition, including: (a) about 1-35 wt % of an oligomer, wherein the oligomer is obtained by reacting a liquid epoxy resin with an aromatic primary amine having four active hydrogen atoms, and the liquid epoxy resin and the primary amine have an equivalent mole ratio of 1:0.15-1:2.50; (b) about 5-10 wt % of a long chain resin; (c) about 50-80 wt % of an epoxy resin having at least two functional groups; and (d) about 5-15 wt % of a plasticizer.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 10, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Tien-Shou Shieh, Pei-Ching Liu
  • Patent number: 8523362
    Abstract: An illumination system includes a chip package, a first dichroic film, a second dichroic film, and a third dichroic film. The first dichroic film, the second dichroic film, and the third dichroic film are not parallel to each other and do not cross each other. The chip package includes a first light-emitting chip capable of emitting a first light beam, a second light-emitting chip capable of emitting a second light beam, and a third light-emitting chip capable of emitting a third light beam. The first light-emitting chip, the second light-emitting chip, and the third light-emitting chip are arranged in a row. The first dichroic film reflects the first light beam and transmitting the second light beam, the second dichroic film reflects the second light beam, the first dichroic film and the second dichroic film transmit the third light beam, and the third dichroic film reflects the third light beam.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 3, 2013
    Assignee: Young Optics Inc.
    Inventors: Chien-Jung Huang, Pei-Ching Liu, Ruei-Bin Jhang, S-Wei Chen
  • Patent number: 8193258
    Abstract: A sealant composition is provided. The sealant composition includes (a) an oligomer including an unsaturated mono-carboxylic acid modified bisphenol A epoxy resin and an unsaturated mono-carboxylic acid modified bisphenol F epoxy resin, wherein an equivalence ratio of the bisphenol A epoxy resin to the bisphenol F epoxy resin is 0.05:0.95 to 0.3:0.7, the bisphenol A epoxy resin has a melting point higher than 40° C. and the bisphenol F epoxy resin has a melting point lower than 40° C.; (b) an epoxy resin having at least two or more than two epoxy groups; and (c) a photoinitiator.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: June 5, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Jauder Jeng, Man-Lin Chen, Pei-Ching Liu, Tien-Shou Shieh
  • Publication number: 20120133898
    Abstract: A projection apparatus includes an illumination system, a light valve, a projection lens, and a first reflective unit. The illumination system provides an illumination light beam. The light valve is disposed on a transmission path of the illumination light beam and capable of converting the illumination light beam into an image light beam. The illumination light beam is transmitted to the light valve vertically. The projection lens is disposed on a transmission path of the image light beam. The first reflective unit disposed on the transmission path of the image light beam is located between the light valve and the projection lens. The first reflective unit is capable of reflecting the image light beam from the light valve to the projection lens. The image light beam reflected by the first reflective unit to the projection lens is perpendicular to the illumination light beam transmitted to the light valve.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 31, 2012
    Applicant: YOUNG OPTICS INC.
    Inventors: Jui-Ping Chang, Chih-Hsien Tsai, Pei-Ching Liu, S-Wei Chen
  • Publication number: 20120123039
    Abstract: The disclosure provides a thermosetting composition, including: (a) about 1-35 wt % of an oligomer, wherein the oligomer is obtained by reacting a liquid epoxy resin with an aromatic primary amine having four active hydrogen atoms, and the liquid epoxy resin and the primary amine have an equivalent mole ratio of 1:0.15-1:2.50; (b) about 5-10 wt % of a long chain resin; (c) about 50-80 wt % of an epoxy resin having at least two functional groups; and (d) about 5-15 wt % of a plasticizer.
    Type: Application
    Filed: May 23, 2011
    Publication date: May 17, 2012
    Inventors: Tien-Shou Shieh, Pei-Ching Liu
  • Publication number: 20120092629
    Abstract: A projection device including an optical engine base, a light source, a light valve, and a projection lens is provided. The light source includes a component holder, a light component, and light lens. The component holder is assembled to the optical engine base, and has a component slot and a lens slot communicated with the component slot. The lens slot has at least one slot section plane. The light component is disposed within the component slot. The light lens is disposed within the lens slot, and adapted to form the light generated by the light component into a lighting beam. The light valve and the projection lens are assembled to the optical engine base. The light valve is adapted to convert the lighting beam into an image beam. The projection lens is adapted to convert the image beam into a projection beam.
    Type: Application
    Filed: July 7, 2011
    Publication date: April 19, 2012
    Applicant: YOUNG OPTICS INC.
    Inventors: Chih-Wei Chang, Pei-Ching Liu, Jui-Hsiang Yen, Chien-Jung Huang
  • Publication number: 20120075594
    Abstract: A projection apparatus including a light source, a light uniforming and shaping module, and a light valve is provided. The light source has a light-emitting surface and is capable of emitting an illumination beam. The light uniforming and shaping module is disposed on a transmission path of the illumination beam. The light valve is disposed on a projection surface and on the transmission path of the illumination beam from the light uniforming and shaping module, wherein the light valve is capable of converting the illumination beam into an image beam. The light uniforming and shaping module is for projecting a light from each point of the light-emitting surface to a region on the projection surface, and the union of the regions projected from all the points on the light-emitting surface covers an entire active surface of the light valve. An illumination system is also provided.
    Type: Application
    Filed: June 10, 2011
    Publication date: March 29, 2012
    Applicant: YOUNG OPTICS INC.
    Inventors: Chih-Hsien Tsai, Chien-Jung Huang, Pei-Ching Liu, Yu-Tsung Lee, Yi-Hao Kang, Chi-Tang Hsieh
  • Publication number: 20110199581
    Abstract: An optical projection system includes a light source module, a field lens, a fly-eye lens, a light valve and a projection lens. The field lens is disposed on a propagation path of a light beam, where the light beam emitted from the light source module comprises a transmission light beam passing through the field lens and a reflection light beam reflected by the field lens. The fly-eye lens is disposed on the propagation path of the light beam and between the light source module and the field lens to homogenize the light beam, where the fly-eye lens includes a plurality of lens elements arranged in an array, the reflection light beam passes through the lens element via a transmissive region of the lens element, and at least one of an opaque structure, a light-diffusing structure and a light-deflecting structure is formed on the transmissive region.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 18, 2011
    Inventors: Ruei-Bin JHANG, Pei-Ching Liu, Chien-Jung Huang, S-Wei Chen