Patents by Inventor Kuo Lung Tsai

Kuo Lung Tsai 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: 20250056855
    Abstract: A semiconductor device is provided. The semiconductor device includes a semiconductor body and a transistor. The transistor includes a drain region in the semiconductor body, a first doped region in the drain region, a source region in the semiconductor body, a second doped region adjacent the source region, and a third doped region between the first doped region and the second doped region. The third doped region includes a first portion having a first concentration of dopants, a second portion adjacent the first portion and having a second concentration of dopants, a third portion adjacent the second portion and having a third concentration of dopants, and a fourth portion adjacent the third portion and having a fourth concentration of dopants. The first concentration is less than the second concentration. The second concentration is greater than the third concentration. The third concentration is less than the fourth concentration.
    Type: Application
    Filed: February 13, 2024
    Publication date: February 13, 2025
    Inventors: Zhuo-Cang YANG, June-Sheng TSAI, Pin Yu HSU, Kuo-Lung TZENG, Hsin-Chi CHEN
  • Patent number: 11505663
    Abstract: A method for making a silk protein film includes providing an aqueous solution of a silk protein, and annealing a mixture including the aqueous solution of the silk protein and a water-soluble polyhydroxy compound that is present in an amount ranging from 20 wt % to 60 wt % based on a total amount of the silk protein and the water-soluble polyhydroxy compound at an annealing temperature that is higher than 50° C. and lower than 180° C. and under a relative humidity of not higher than 30%, so as to form the silk protein film.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: November 22, 2022
    Assignees: Southern Taiwan University of Science and Technology, Taiwan Pioneer Biotech Co., Ltd., Univacco Technology Inc.
    Inventors: Song-Tay Lee, Nan-Kai Lin, Kuo-Lung Tsai
  • Publication number: 20220056237
    Abstract: A method of manufacturing decoration foils and a release layer and an adhesive layer of the decoration foil, and decoration foils manufactured by the same are revealed. First take waste containing polyethylene terephthalate (PET) to react with an alcohol and get a first product. Then the first product is allowed to react with a compound containing isocyanate group and polyol to obtain polyurethane (PU) material. The PU material obtained is used for manufacturing at least one of a release layer and an adhesive of decoration foils to get the decoration foil.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 24, 2022
    Inventors: KUO-LUNG TSAI, HSIEN-CHANG LEE, HSIEN-YIN TSAI, MING-CHIEH KUO, CHIEN-LIANG KUO
  • Publication number: 20200255610
    Abstract: A method for making a silk protein film includes providing an aqueous solution of a silk protein, and annealing a mixture including the aqueous solution of the silk protein and a water-soluble polyhydroxy compound that is present in an amount ranging from 20 wt % to 60 wt % based on a total amount of the silk protein and the water-soluble polyhydroxy compound at an annealing temperature that is higher than 50° C. and lower than 180° C. and under a relative humidity of not higher than 30%, so as to form the silk protein film.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Inventors: Song-Tay LEE, Nan-Kai LIN, Kuo-Lung TSAI
  • Publication number: 20110233490
    Abstract: An ultraviolet (UV) and infrared (IR) blocking coating and a method for preparing the same are revealed. The coating provides functions of UV blocking and IR blocking by addition of nanoparticles that blocks UV rays and IR rays, or by other additives with the same functions such as organic/inorganic compounds or dyes.
    Type: Application
    Filed: March 26, 2010
    Publication date: September 29, 2011
    Applicant: UNIVACCO TECHNOLOGY INC.
    Inventors: KUO-LUNG TSAI, CHANG-NENG HSIAO, MING-SHENG WANG
  • Publication number: 20100330289
    Abstract: This invention relates to a method for making high metallic luster, high impedance on flexible polymer based material, in which a lustrous layer is coated on the first surface of a flexible polymer based material by means of wet coating and a color protection layer is further coated on the lustrous layer or the second surface of the flexible polymer based material. In this manner, metal-like feeling and luster is enhanced by the lustrous layer such that the flexible polymer based material has low metal shielding effect or light-shield capability. In addition, the transmittance of light and electromagnetic wave in demanded range become better so that the interference on the quality of transmission and receiving can be avoided.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventors: Chang-Neng Hsiao, Sheng-Kun Huang, Kuo-Lung Tsai
  • Patent number: 6244576
    Abstract: A mist humidifier has a lower space receiving a main water tank for storing water and an upper space divided into an evaporative cavity and a blower cavity. The evaporative cavity is divided into a first water chamber for storing water fed from main water tank having a float ball safety valve, a second water chamber for receiving a nebulizer for vaporizing water for creating cool mist, a third water chamber for receiving a heater for heating water for creating a hot mist, and a water supply tube provided on the bottom of the first water chamber in fluid communication with the second and third water chambers so as to keep all water chambers at a constant equal level, whereby a mist having a temperature at a constant level is discharged into the environment when the humidifier is activated.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: June 12, 2001
    Inventor: Kuo Lung Tsai
  • Patent number: 4610556
    Abstract: A combination writing instrument comprising a plurality of nib devices detachably mounted at the front of pen holder, all of the nib devices being mounted in a head-to-tail connection with a uniform ink flow system to induce a constant and uniform ink flow from an ink reservoir to the front-most writing point for immediate and smooth writing, so that the user can select one of the nib devices to perform a desired writing purpose and enjoy a variety of writing modes.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: September 9, 1986
    Inventor: Kuo-Lung Tsai