Patents by Inventor Chien-Hua Li

Chien-Hua Li 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: 11772732
    Abstract: This invention discloses a bicycle bell that combines the functions of a single-stroke bell and an automatic striking bell. The bicycle bell of the invention includes a base portion and a bell portion, and the base portion has a limiting column protruding from the base portion, and the bell portion includes a shell assembly and a clapper assembly movably installed in the shell assembly, and the shell assembly is sheathed on the limiting column and can be fixed to a first position and a second position of the limiting column, and the clapper assembly is held by the limiting column to limit the movement of the clapper assembly, when the shell is situated in the second position.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: October 3, 2023
    Assignee: Jet Rider Co., Ltd.
    Inventors: Je-Kuan Jau, Chien-Hua Li
  • Publication number: 20220081051
    Abstract: This invention discloses a bicycle bell that combines the functions of a single-stroke bell and an automatic striking bell. The bicycle bell of the invention includes a base portion and a bell portion, and the base portion has a limiting column protruding from the base portion, and the bell portion includes a shell assembly and a clapper assembly movably installed in the shell assembly, and the shell assembly is sheathed on the limiting column and can be fixed to a first position and a second position of the limiting column, and the clapper assembly is held by the limiting column to limit the movement of the clapper assembly, when the shell is situated in the second position.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 17, 2022
    Inventors: Je-Kuan Jau, Chien-Hua Li
  • Patent number: 11189923
    Abstract: An antenna structure includes a radiating portion and a coupling portion. The radiating portion is electrically connected to a feed point for feeding current. The coupling portion is electrically connected to a ground point to be grounded. The coupling portion is spaced apart from the radiating portion. The radiating portion excites a first resonant mode for generating radiation signals in a first frequency band. The current flowing through the radiating portion is coupled to the coupling portion, and the coupling portion excites a second resonant mode and a third resonant mode for generating radiation signals in a second frequency band and a third frequency band. Frequencies of the first frequency band are higher than frequencies of the second frequency band. Frequencies of the third frequency band are higher than frequencies of the first frequency band.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 30, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Wei-En Hsieh, Chien-Hua Li, Yih-Shyang Her
  • Patent number: 11101547
    Abstract: An antenna apparatus sited within a metal housing with improved frequency isolation between individual antennas includes the housing, a first ground portion, a first feed portion, and a second ground portion. A side frame of the housing defines at least one gap, the gap separates a first antenna and a second antenna. The first ground portion is formed by extending an end of the first antenna away from the gap. One end of the second ground portion is connected to the first feed portion, other end of the second ground portion is connected to ground. A first feed point feeds power and signal to the first antenna. A wireless communication device using the antenna apparatus is also provided.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 24, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yih-Shyang Her, Yun-Jian Chang, Chien-Hua Li, Wei-En Hsieh
  • Patent number: 10804607
    Abstract: An antenna structure includes a housing, a radiator, a first feed portion, and a first ground portion. The housing includes a coupling portion and a coupling section. The first feed portion, the first ground portion, and the radiator are all positioned in the housing. When a first feed point supplies current, the current flows through the first feed portion and the radiator, and is coupled to one of the coupling portion and the coupling section through the radiator. The current is further coupled to the other one of the coupling portion and the coupling section through the one of the coupling portion and the coupling section. The radiator, the coupling portion, and the coupling section activate three different operating modes. Each mode operating generates radiation signals in one of three different radiation frequency bands.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 13, 2020
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Wei-En Hsieh, Chien-Hua Li, Yih-Shyang Her
  • Publication number: 20200036084
    Abstract: An antenna apparatus sited within a metal housing with improved frequency isolation between individual antennas includes the housing, a first ground portion, a first feed portion, and a second ground portion. A side frame of the housing defines at least one gap, the gap separates a first antenna and a second antenna. The first ground portion is formed by extending an end of the first antenna away from the gap. One end of the second ground portion is connected to the first feed portion, other end of the second ground portion is connected to ground. A first feed point feeds power and signal to the first antenna. A wireless communication device using the antenna apparatus is also provided.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Yih-Shyang Her, Yun-Jian Chang, Chien-Hua Li, Wei-En Hsieh
  • Publication number: 20190181549
    Abstract: An antenna structure includes a radiating portion and a coupling portion. The radiating portion is electrically connected to a feed point for feeing current. The coupling portion is electrically connected to a ground point to be grounded. The coupling portion is spaced apart from the radiating portion. The radiating portion excites a first resonant mode for generating radiation signals in a first frequency band. The current flowing through the radiating portion is coupled to the coupling portion, and the coupling portion excites a second resonant mode and a third resonant mode for generating radiation signals in a second frequency band and a third frequency band. Frequencies of the first frequency band are higher than frequencies of the second frequency band. Frequencies of the third frequency band are higher than frequencies of the first frequency band.
    Type: Application
    Filed: November 7, 2018
    Publication date: June 13, 2019
    Inventors: WEI-EN HSIEH, CHIEN-HUA LI, YIH-SHYANG HER
  • Publication number: 20190097319
    Abstract: An antenna structure includes a housing, a radiator, a first feed portion, and a first ground portion. The housing includes a coupling portion and a coupling section. The first feed portion, the first ground portion, and the radiator are all positioned in the housing. When a first feed point supplies current, the current flows through the first feed portion and the radiator, and is coupled to one of the coupling portion and the coupling section through the radiator. The current is further coupled to the other one of the coupling portion and the coupling section through the one of the coupling portion and the coupling section. The radiator, the coupling portion, and the coupling section activate three different operating modes. Each mode operating generates radiation signals in one of three different radiation frequency bands.
    Type: Application
    Filed: August 22, 2018
    Publication date: March 28, 2019
    Inventors: WEI-EN HSIEH, CHIEN-HUA LI, YIH-SHYANG HER
  • Patent number: 9368387
    Abstract: A method of forming a shallow trench isolation (STI) structure in a substrate includes forming a pad oxide layer over the substrate. The method includes forming a nitride-containing layer over the pad oxide layer, wherein the nitride-containing layer has a first thickness. The method further includes forming the STI structure extending through the nitride-containing layer, into the substrate. The STI structure has a height above a top surface of the pad oxide layer. The method includes establishing a correlation between the first thickness, the height of the STI structure above the top surface of the pad oxide layer, and an offset between the first thickness and the height of the STI structure above the top surface of the pad oxide layer. The method includes calculating the height of the STI structure above the pad oxide layer based on the correlation, and selectively removing a determined thickness of the STI structure.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 14, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tai-Yung Yu, Hui Mei Jao, Jin-Lin Liang, Chien-Hua Li, Cheng-Long Tao, Shian Wei Mao, Chien-Chang Fang
  • Publication number: 20160005669
    Abstract: A method of forming a shallow trench isolation (STI) structure in a substrate includes forming a pad oxide layer over the substrate. The method includes forming a nitride-containing layer over the pad oxide layer, wherein the nitride-containing layer has a first thickness. The method further includes forming the STI structure extending through the nitride-containing layer, into the substrate. The STI structure has a height above a top surface of the pad oxide layer. The method includes establishing a correlation between the first thickness, the height of the STI structure above the top surface of the pad oxide layer, and an offset between the first thickness and the height of the STI structure above the top surface of the pad oxide layer. The method includes calculating the height of the STI structure above the pad oxide layer based on the correlation, and selectively removing a determined thickness of the STI structure.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 7, 2016
    Inventors: Tai-Yung YU, Hui Mei JAO, Jin-Lin LIANG, Chien-Hua LI, Cheng-Long TAO, Shian Wei MAO, Chien-Chang FANG
  • Publication number: 20110014726
    Abstract: A method for forming a shallow trench isolation (STI) structure with a predetermined target height is provided. A substrate having a pad oxide layer formed on the substrate is provided. A nitride-containing layer with a thickness is formed on the pad oxide. A STI structure is formed and extends through the nitride-containing layer, the pad oxide layer, into the substrate. The thickness of the nitride-containing layer is measured to calculate the height of STI structure according to a correlation between the thickness of the nitride-containing layer and the height of STI structure. A thickness of the top portion STI structure to be removed is determined according to the difference between the height of the STI structure and the predetermined target height and is removed in a first etching process. The nitride-containing layer is removed without etching the STI structure or the pad oxide layer in a second etching process.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 20, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tai-Yung YU, Hue Mei JAO, Jin-Lin LIANG, Chien-Hua LI, Cheng-Long TAO, Shian Wei MAO, Chien-Chang FANG
  • Patent number: 6195857
    Abstract: A device is designed to automate the process of stripping residual yarn from a yarn tube. The device comprises a feeding mechanism, an index dial, a residual yarn removing mechanism, a compression mechanism, and an arranging mechanism. The automated device enhances the recycling quality of the stripped residual yarn and minimizes the likelihood that the yarn tube is damaged in the stripping process.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: March 6, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Lung-Wu Chang, Shi-Ming Wang, Albert Day, Chin-Lung Liu, Chien-Hua Li, Tzu-Yang Wang