Patents by Inventor Chih-Fu Chen

Chih-Fu Chen 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: 11984478
    Abstract: A method includes forming a first portion of a spacer layer over a first fin and a second portion of the spacer layer over a second fin, performing a first etching process to recess the first portion of the spacer layer with respect to the second portion of the spacer layer to form first spacers on sidewalls of the first fin, subsequently performing a second etching process to recess the second portion of the spacer layer with respect to the first spacers to form second spacers on sidewalls of the second fin, where the second spacers are formed to a height greater than that of the first spacers, and forming a first epitaxial source/drain feature and a second epitaxial source/drain feature between the first spacers and the second spacers, respectively, where the first epitaxial source/drain feature is larger than that of the second epitaxial source/drain feature.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: May 14, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Shu Wen Wang, Chih-Teng Liao, Chih-Shan Chen, Jui Fu Hsieh, Dave Lo
  • Publication number: 20240110576
    Abstract: An impeller is provided, including a metal housing, a shaft, and a plastic member. The metal housing has a shaft mounting hole. The inner surface of the shaft mounting hole includes three or more contact points, and the contact points are closer to the shaft than other portions of the inner surface of the shaft mounting hole. The shaft passes through the shaft mounting hole and is affixed by the contact points. The metal housing divides the shaft into an upper section, a middle section, and a lower section. The plastic member passes through the shaft mounting hole and is in contact with the middle section.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Wei-I LING, Chao-Fu YANG, Chih-Chung CHEN, Kuo-Tung HSU
  • Publication number: 20240092984
    Abstract: A resin film is provided. When the resin film is characterized by Fourier transform infrared spectroscopy (FTIR), the Fourier transform infrared spectrum of the resin film has a signal intensity A from 2205 cm?1 to 2322 cm?1 and a signal intensity B from 1472 cm?1 to 1523 cm?1, and 0.70?A/B?1.95.
    Type: Application
    Filed: May 24, 2023
    Publication date: March 21, 2024
    Inventors: Hsuan-Min LIN, Chih-Fu CHEN, An-Pang TU
  • Publication number: 20240080024
    Abstract: A driving method for a multiple frequency coupling generator is provided. The method includes: in normal operations, interpreting an input digital control signal transmitted from a digital signal processor into an interpreted digital control signal; interpreting the interpreted digital control signal into a plurality of magnetic coupling signals by a magnetic coupling switch circuit; performing signal recovery and differential delay on the magnetic coupling signals by an interlocking circuit for reducing time difference and signal loss of the magnetic coupling signals; and when the interlocking circuit determines that the magnetic coupling signals have substantially no time difference and no signal loss, transforming the magnetic coupling signals into a first driving signal and a second driving signal by a switch circuit, a driver circuit and an output pad group to drive a backend driving loop.
    Type: Application
    Filed: March 30, 2023
    Publication date: March 7, 2024
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chung CHIU, Hung-Yi TENG, Chi-Chung LIAO, Shou-Chung HSIEH, Ke-Horng CHEN, Yan-Fu JHOU
  • Patent number: 11207240
    Abstract: A drug mixing container is provided. The drug mixing container includes a container with an opening facing upward and a cover body. An inner peripheral wall of the container includes at least one piercing structure protruding toward the opening of the container. The cover body accommodates a drug and includes a sealing film for sealing the drug in the cover body. In use, when an opening of the cover body is coupled downward to the opening of the container, the sealing film is pierced and torn by the piercing structure to make the drug in the cover body flow into the container, thereby preventing hands of an operator from being stained with the drug.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: December 28, 2021
    Assignee: JIERYANG BIOTECH, INC.
    Inventor: Chih-Fu Chen
  • Publication number: 20200368110
    Abstract: A drug mixing container is provided. The drug mixing container includes a container with an opening facing upward and a cover body. An inner peripheral wall of the container includes at least one piercing structure protruding toward the opening of the container. The cover body accommodates a drug and includes a sealing film for sealing the drug in the cover body. In use, when an opening of the cover body is coupled downward to the opening of the container, the sealing film is pierced and torn by the piercing structure to make the drug in the cover body flow into the container, thereby preventing hands of an operator from being stained with the drug.
    Type: Application
    Filed: May 22, 2019
    Publication date: November 26, 2020
    Inventor: Chih-Fu CHEN
  • Patent number: 10105084
    Abstract: A blood sampler includes a hollow transparent barrel including a reduced collection portion located at a front end thereof and terminating in a reduced coupling portion, an outlet defined in the coupling portion and a plurality of ribs spaced around and raised from an inside wall near an opposing rear end thereof, a piston axially movably fitted into the hollow transparent barrel and having a screw hole and peripheral ribs, a cap detachably capped onto the collection portion to seal the outlet, and a plunger having a screw rod located at a front end thereof and threaded into the screw hole of the piston for allowing movement the piston with the plunger. The hollow transparent barrel enables collecting blood sample from a patient, separating the collected blood sample into platelet-rich plasma, platelet-rich plasma and serum in a centrifuge and injecting the collected platelet-rich plasma into a patient body.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 23, 2018
    Assignee: JIERYANG BIOTECH, INC.
    Inventor: Chih-Fu Chen
  • Publication number: 20170215781
    Abstract: A blood sampler includes a hollow transparent barrel including a reduced collection portion located at a front end thereof and terminating in a reduced coupling portion, an outlet defined in the coupling portion and a plurality of ribs spaced around and raised from an inside wall near an opposing rear end thereof, a piston axially movably fitted into the hollow transparent barrel and having a screw hole and peripheral ribs, a cap detachably capped onto the collection portion to seal the outlet, and a plunger having a screw rod located at a front end thereof and threaded into the screw hole of the piston for allowing movement the piston with the plunger. The hollow transparent barrel enables collecting blood sample from a patient, separating the collected blood sample into platelet-rich plasma, platelet-rich plasma and serum in a centrifuge and injecting the collected platelet-rich plasma into a patient body.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 3, 2017
    Inventor: CHIH-FU CHEN
  • Patent number: 7662907
    Abstract: The present invention relates to all-aromatic polyesters, a method for preparing the same, and a polyester composition containing the same. The present method is carried out in two stages of first carrying out a prepolymerization to obtain a prepolymer having a specific particle size distribution, then carrying out a solid polymerization. The present method can control the quality of polyester effectively and produce all-aromatic polyester exhibiting excellent flowability, high heat resistance, and high solder heat resistance.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 16, 2010
    Assignee: Chang Chun Plastics Co., Ltd
    Inventors: Kuen Yuan Hwang, An Pang Tu, Chih Fu Chen, Jia Sheng Liau
  • Patent number: 7507819
    Abstract: The present invention relates to a method for preparing amino phosphate flame retardants. Melamine and phosphoric acid substances are used as a starting material, AND then the starting material reacts in the absence of solvents at a temperature ranging from 40 to 200° C. to obtain powdery amino phosphate compounds used as flame retardants. Since the reaction free of solvents is carried out under a condition of lower temperature, the powdery amino phosphate compounds can be obtained without drying steps. Therefore, not only the contaminations caused by solvent volatilization can be avoided, but also the process of preparing the product is simplified and the cost of the product is reduced.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: March 24, 2009
    Assignee: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, An-Bang Duh, Chih-Fu Chen, Cheng-Jung Chiang
  • Publication number: 20080146770
    Abstract: The present invention relates to all-aromatic polyesters, a method for preparing the same, and a polyester composition containing the same. The present method is carried out in two stages of first carrying out a prepolymerization to obtain a prepolymer having a specific particle size distribution, then carrying out a solid polymerization. The present method can control the quality of polyester effectively and produce all-aromatic polyester exhibiting excellent flowability, high heat resistance, and high solder heat resistance.
    Type: Application
    Filed: March 19, 2007
    Publication date: June 19, 2008
    Inventors: Kuen Yuan Hwang, An Pang Tu, Chih Fu Chen, Jia Sheng Liau
  • Publication number: 20080054234
    Abstract: A nonflammable resin composition comprises (A) at least an epoxy resin with biphenyl unit or naphthyl unit; (B) at least a phenolic resin used as a hardener, wherein the phenolic resin has a skeleton formed by phenyl rings bonding directly each other without interruption, and is in an amount of 30 to 100% by weight based on total hardeners; and (C) a curing catalyst. The said nonflammable resin has an excellent flame retardancy, a good heat resistance, and an improved moldability and reliability.
    Type: Application
    Filed: August 21, 2007
    Publication date: March 6, 2008
    Applicant: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, An-Pang Tu, Chih-Fu Chen, Gai-Chi Chen
  • Publication number: 20070049753
    Abstract: The present invention relates to a method for preparing amino phosphate flame retardants. Melamine and phosphoric acid substances are used as a starting material, AND then the starting material reacts in the absence of solvents at a temperature ranging from 40 to 200° C. to obtain powdery amino phosphate compounds used as flame retardants. Since the reaction free of solvents is carried out under a condition of lower temperature, the powdery amino phosphate compounds can be obtained without drying steps. Therefore, not only the contaminations caused by solvent volatilization can be avoided, but also the process of preparing the product is simplified and the cost of the product is reduced.
    Type: Application
    Filed: November 7, 2005
    Publication date: March 1, 2007
    Applicant: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, An-Bang Duh, Chih-Fu Chen, Cheng-Jung Chiang
  • Publication number: 20040254305
    Abstract: An epoxy resin composition containing (A) at least two kinds of epoxy resins, wherein the epoxy resin represented by Formula (I) is in an amount of 10 to 90% by weight based on the total amount of the epoxy resins, (B) a hardener and (C) a hardening accelerator is proposed: 1
    Type: Application
    Filed: June 4, 2004
    Publication date: December 16, 2004
    Inventors: Kuen-Yuan Hwang, An-Pang Tu, Chih-Fu Chen
  • Patent number: 6617029
    Abstract: The present invention relates to a nitrogen-containing epoxy resin of the following formula: wherein R's are the same or different and each represents a hydrogen atom or —R13—C6-10 aryl-(OR14)p, and the aryl group is optionally substituted with C1-6 alkyl group, in which R13 represents a C1-6 alkylene group or a phenylene —CH2— group optionally substituted with a hydroxy group, R14 represents a glycidyl group, and p is an integer of 1 or 2, provided that at least one R group is not a hydrogen atom; R1 represents a phenyl group or —N(R)2 group in which R is defined as above. The resin is produced from sequentially reacting melamine derivatives with aldehydes, phenolic compounds, and epihalohydrin.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: September 9, 2003
    Assignee: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, Hong-Hsing Chen, Chih-Fu Chen, Huan-Chang Chao
  • Patent number: 6576690
    Abstract: The present invention relates to a phosphorous-containing flame retarding epoxy resin and their composition comprising the nitrogen-containing flame retarding epoxy resin. More specifically, the present invention relates to a flame retarding epoxy resin having a pendent phosphorous-containing functional group and their composition comprising the nitrogen-containing flame retarding epoxy resin. The flame retarding phosphorous-containing epoxy resin and the epoxy resin composition containing the same of the present invention possess excellent flame retarding property and heat resistance without containing halogen and diantimony trioxide. Therefore they are useful as an encapsulating material in the semiconductor industry and the cured article prepared from the composition exhibits excellent molding ability and excellent reliance.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: June 10, 2003
    Assignee: Chang Chung Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, Hong-Hsing Chen, Chih-Fu Chen
  • Publication number: 20030099839
    Abstract: The present invention relates to a nitrogen-containing epoxy resin of the following formula: 1
    Type: Application
    Filed: January 4, 2002
    Publication date: May 29, 2003
    Applicant: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, Hong-Hsing Chen, Chih-Fu Chen, Huan-Chang Chao
  • Publication number: 20020077261
    Abstract: The present invention provides an amino resin composition for cleaning molds, that said composition is made of a thermosetting resin to which is a semi-cured amino resin composition or a semi-cured mixture thereof is added. The amino resin composition has decreased viscosity and increased tablet ability. When used to remove the soil on the surface of molds, the amino resin composition possesses good forming ability and good mold-cleaning effect so that the time needed for mold cleaning is efficiently decreased and the problem of a powder composition that can not be easily tabletted is overcome due to its excellent tablet ability.
    Type: Application
    Filed: October 18, 2001
    Publication date: June 20, 2002
    Applicant: Chang Chun Plastics Co., Ltd.
    Inventors: Kuen-Yuan Hwang, Hong-Hsing Chen, Chih-Fu Chen