Patents by Inventor Sang Hwa Yoon

Sang Hwa Yoon 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: 11622445
    Abstract: Provided are: a surface-treated copper foil including a surface-treated layer formed on at least one side of an untreated copper foil and an oxidation preventing layer formed on the surface-treated layer, wherein the surface-treated layer contains copper particles having an average particle diameter of about 10 nm to about 100 nm and has a 10-point average roughness, Rz, of about 0.2 ?m to about 0.5 ?m and a gloss (Gs 60°) of about 200 or more, and the oxidation preventing layer contains nickel (Ni) and phosphorus (P); a manufacturing method thereof; a copper foil laminate including the same; and a printed wiring board including the same.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 4, 2023
    Assignee: ILJIN MATERIALS CO., LTD.
    Inventors: Sang Hwa Yoon, Chang Yol Yang, Jung Woo Seo, Young Ho Ryu, Kideok Song, Eun Sil Choi, Won Jin Beom, Hyung Cheol Kim
  • Publication number: 20220399547
    Abstract: Disclosed herein are a surface-treated copper foil for a negative electrode current collector for secondary batteries, a method for producing the same, and a negative electrode for secondary batteries including the same. The surface-treated copper foil includes needle-shaped copper particles formed on at least one surface thereof, wherein the copper particles have an average major-axis length of about 0.6 ?m to about 2.0 ?m and are separated from one another by a distance of about 1 ?m to about 5 ?m.
    Type: Application
    Filed: December 20, 2019
    Publication date: December 15, 2022
    Inventors: Sang Hwa YOON, Jung Woo SEO, Eun Sil CHOI, Young Ho RYU, Hyung Cheol KIM, Won Jin BEOM, Ki Deok SONG, Chang Yol YANG
  • Publication number: 20220367114
    Abstract: Provided is an electrolytic nickel foil including, on at least one surface thereof, a flat surface having the following surface roughness: a Ra of 0.05 ?m or less, a Rz of 0.2 ?m or less, and a Rt of 0.5 ?m or less and a glossiness of 200 GU or more as determined by measuring a 60° specular reflection angle.
    Type: Application
    Filed: December 17, 2019
    Publication date: November 17, 2022
    Inventors: Ki Deok SONG, Chang Yol YANG, Sang Hwa YOON
  • Publication number: 20210195737
    Abstract: Provided are: a surface-treated copper foil including a surface-treated layer formed on at least one side of an untreated copper foil and an oxidation preventing layer formed on the surface-treated layer, wherein the surface-treated layer contains copper particles having an average particle diameter of about 10 nm to about 100 nm and has a 10-point average roughness, Rz, of about 0.2 ?m to about 0.5 ?m and a gloss (Gs 60°) of about 200 or more, and the oxidation preventing layer contains nickel (Ni) and phosphorus (P); a manufacturing method thereof; a copper foil laminate including the same; and a printed wiring board including the same.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Sang Hwa Yoon, Chang Yol Yang, Jung Woo Seo, Young Ho Ryu, Kideok Song, Eun Sil Choi, Won Jin Beom, Hyung Cheol Kim
  • Publication number: 20080209803
    Abstract: Disclosed is an aggregated body of vessels for plant food, in which a plurality of plant food vessels (1) is processed to be connected to each other, so that the resultant aggregated body (100) facilitates packing and storage of the plant food vessels, reduces distribution cost, can be produced at mass production volumes with high productivity, and allows a user to easily manage and use the plant food vessels after purchase. The aggregated body includes a plurality of the plant food vessels connected to each other, each plant food vessel including a main body (10), a tapered outlet (20) provided at an upper end portion of the main body, and a cover (30) provided on the top of the tapered outlet. The connection between the plant food vessels is made with connection strips through a blowing method, and thus the connection is easily broken.
    Type: Application
    Filed: December 7, 2007
    Publication date: September 4, 2008
    Inventor: Sang Hwa Yoon
  • Patent number: 7240456
    Abstract: Disclosed herein is a container for liquid plant nutrients. The container includes a bottle and a cap. The cap includes an outer sealing skirt, an inner sealing protrusion, a head, and a neck. The outer sealing skirt is formed in a cylindrical shape closed at the top thereof. The inner sealing protrusion is projected from the bottom of the inside of the outer sealing skirt. The head is projected from the outer sealing skirt to be easily gripped with the fingers. The neck connects the head and the top of the outer sealing skirt, is of a width smaller than that of the head, and has a discharge hole extended from the bottom of the inner sealing protrusion to the top of the neck.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: July 10, 2007
    Inventor: Sang Hwa Yoon
  • Publication number: 20050005515
    Abstract: Disclosed herein is a container for liquid plant nutrients. The container includes a bottle and a cap. The cap includes an outer sealing skirt, an inner sealing protrusion, a head, and a neck. The outer sealing skirt is formed in a cylindrical shape closed at the top thereof. The inner sealing protrusion is projected from the bottom of the inside of the outer sealing skirt. The head is projected from the outer sealing skirt to be easily gripped with the fingers. The neck connects the head and the top of the outer sealing skirt, is of a width smaller than that of the head, and has a discharge hole extended from the bottom of the inner sealing protrusion to the top of the neck.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 13, 2005
    Inventor: Sang Hwa Yoon