Patents by Inventor Ji Wan LEE
Ji Wan LEE 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: 11963445Abstract: Provided are a compound capable of improving the light-emitting efficiency, stability, and lifespan of an element; an organic electronic element using same; and an electronic device thereof.Type: GrantFiled: August 9, 2023Date of Patent: April 16, 2024Assignee: DUK SAN NEOLUX CO., LTD.Inventors: Ji Hyun Park, Se Hoon Lee, Jae Wan Jang, Hyung Dong Lee, Yun Suk Lee
-
Publication number: 20240119907Abstract: A display device includes a substrate, a first active pattern, a first gate electrode, a second active pattern, a second gate electrode, a first connecting pattern, and a second connecting pattern. The first connecting pattern is disposed on the second active pattern and is electrically connected to the first gate electrode, and the second connecting pattern is disposed on the first connecting pattern and is electrically connected to the first connecting pattern and the second active pattern.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Inventors: Ji Seon LEE, Jin Sung AN, Seok Je SEONG, Seong Jun LEE, Se Wan SON
-
Publication number: 20240107840Abstract: A display device includes a first semiconductor layer disposed on a substrate; a first insulating layer disposed on the first semiconductor layer; a scan line disposed on the first insulating layer; a second insulating layer on the scan line; an inverted scan line on the second insulating layer; a third insulating layer disposed on the inverted scan line; a second semiconductor layer disposed on the third insulating layer; a fourth insulating layer disposed on the second semiconductor layer; an initializing voltage line disposed on the fourth insulating layer and overlapping the scan line; a first transistor including a channel disposed in the first semiconductor layer and receiving a gate signal through the scan line; and a second transistor including a channel disposed in the second semiconductor layer and receiving a gate signal through the inverted scan line.Type: ApplicationFiled: December 1, 2023Publication date: March 28, 2024Applicant: Samsung Display Co., LTD.Inventors: Se Wan SON, Moo Soon KO, Kyung Hyun BAEK, Seok Je SEONG, Jae Hyun LEE, Jeong-Soo LEE, Ji Seon LEE, Yoon-Jong CHO
-
Patent number: 11939308Abstract: The present disclosure provides a novel biphenyl derivative compound or a pharmaceutically acceptable salt thereof. The biphenyl derivative compound or pharmaceutically acceptable salt thereof according to the present disclosure is a compound that increases Nm23-H1/NDPK activity and can inhibit cancer metastasis and growth. Thus, it exhibits excellent effects not only on the prevention, alleviation and treatment of cancer, but also on the suppression of cancer metastasis.Type: GrantFiled: May 30, 2019Date of Patent: March 26, 2024Assignee: EWHA University—Industry Collaboration FoundationInventors: Kong Joo Lee, Hee-Yoon Lee, Je Jin Lee, Hwang Suk Kim, Ji-Wan Seo, Hongsoo Lee, Ji Soo Shin, Bo-kyung Kim
-
Publication number: 20240085786Abstract: The present invention relates to a naphthalimide sulfonate derivative, and a photoacid generator and a photoresist composition each comprising same and, more specifically, to a naphthalimide sulfonate derivative compound, and a photoacid generator and a photoresist composition each comprising same, wherein the compound has excellent absorbance for light of i-line (365 nm) wavelength, is greatly easy to prepare into a polymerizable composition due to very high solubility in an organic solvent, has good thermal stability, and shows a favorable acid generation rate.Type: ApplicationFiled: December 28, 2021Publication date: March 14, 2024Applicant: SAMYANG CORPORATIONInventors: Chun Rim OH, Dae Hyuk CHOI, Yu Na CHOI, Deuk Rak LEE, Ji Eun CHOI, Ki Tae KANG, Min Jung KIM, Won Jung LEE, Chi Wan LEE
-
Patent number: 11214095Abstract: Provided are a sheet, a method of its preparation, and a tire comprising the sheet, wherein the sheet comprises tire cords, a topping rubber for topping the tire cords, and a conductive fiber located on the surface of the topping rubber. The sheet can provide tires, on which a rubber composition with a low electricity-transmitting property and low rolling resistance is applied, with excellent conductivity.Type: GrantFiled: November 27, 2018Date of Patent: January 4, 2022Inventors: Ji Wan Lee, Mi Jung Lee, Sung Tae Kim, Kil Ju Ko, Il Yong Park, Su Hong Sung
-
Publication number: 20210086568Abstract: A non-pneumatic tire includes a rim part in which an insertion groove is formed and being connected with an axle; a tread part formed in a shape of surrounding an outer side of the tire in a circumferential direction thereof and being in contact with the ground; a spoke part formed between the rim part and the tread part and provided with upper arch bodies and lower arch bodies of an arch shape to absorb impacts transmitted from the ground to the tread part; a structural reinforcement part inserted into the inside of the tread part to perform load support and stress distribution of the spoke part; a conductive structure part formed between an outer surface of the rim part and an inner surface of the tread part, and having fiber plated using a metal salt.Type: ApplicationFiled: September 23, 2020Publication date: March 25, 2021Inventors: Sung Tae KIM, Seok Ju CHOI, Ji Wan LEE, Jeong Heon KIM
-
Publication number: 20210053400Abstract: A tire including a sealant layer and a sound absorbing material layer is provided, and more particularly, a tire is provided, which includes a sound absorbing material layer which is attached to an inner surface of a tire, and a sealant layer which is disposed between the inner surface of the tire and the sound absorbing material layer and includes a sealant which attaches the sound absorbing material layer to the inner surface of the tire. The sound absorbing material layer includes a non-woven fabric.Type: ApplicationFiled: August 12, 2020Publication date: February 25, 2021Inventors: Ji Wan LEE, Seok Hee JO, Byeong Ho SEO, In Jeong PARK, Nam Seok KIM, Hae Kwang CHUNG, Jeong Heon KIM, Hyun Ah BAE
-
Publication number: 20190193465Abstract: Provided are a sheet, a method of its preparation, and a tire comprising the sheet, wherein the sheet comprises tire cords, a topping rubber for topping the tire cords, and a conductive fiber located on the surface of the topping rubber. The sheet can provide tires, on which a rubber composition with a low electricity-transmitting property and low rolling resistance is applied, with excellent conductivity.Type: ApplicationFiled: November 27, 2018Publication date: June 27, 2019Inventors: Ji Wan LEE, Mi Jung LEE, Sung Tae KIM, Kil Ju KO, Il Yong PARK, Su Hong SUNG
-
Patent number: 10266009Abstract: Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.Type: GrantFiled: January 18, 2017Date of Patent: April 23, 2019Assignee: HANKOOK TIRE CO., LTD.Inventors: Ji Wan Lee, Kil Ju Ko, Sung Tae Kim, Hyun Ran Cho, Il Yong Park
-
Patent number: 10035379Abstract: A hybrid cord for a tire, a method of manufacturing the same, and a high-performance environment-friendly radial tire including the same are disclosed herein. The hybrid cord includes a high-modulus fiber ply and a low-modulus fiber ply. The hybrid cord has a stress-strain curve including an initial modulus section, an intermediate modulus section and a final modulus section. The initial modulus of the initial modulus section is higher than the intermediate modulus of the intermediate modulus section, and the final modulus of the final modulus section is higher than the intermediate modulus.Type: GrantFiled: October 15, 2015Date of Patent: July 31, 2018Assignee: Hankook Tire Co., Ltd.Inventors: Ji Wan Lee, Il Yong Park, Kum Kang Hwang, Mi Jung Lee, Sung Tae Kim, Hyun Ran Cho
-
Publication number: 20170210168Abstract: Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.Type: ApplicationFiled: January 18, 2017Publication date: July 27, 2017Inventors: Ji Wan Lee, Kil Ju Ko, Sung Tae Kim, Hyun Ran Cho, II Yong Park
-
Patent number: 9610806Abstract: Disclosed is a tire-reinforcing steel cord for a radial tire. The tire-reinforcing steel cord has a double layer structure including a first-layer core and a second-layer core provided on the surface of the first-layer core. The first-layer core has an elliptical or rectangular cross section. The tire-reinforcing steel cord can improve processability, fatigue characteristics, and rolling resistance performance of a tire, resulting in improved fuel efficiency. A radial tire using the tire-reinforcing steel cord is also disclosed.Type: GrantFiled: April 9, 2014Date of Patent: April 4, 2017Assignee: Hankook Tire Co., Ltd.Inventors: Kwan Woo Jung, Il Yong Park, Kum Kang Hwang, Ill Soon Jang, Ji Wan Lee, Mi Jung Lee
-
Publication number: 20160107485Abstract: A hybrid cord for a tire, a method of manufacturing the same, and a high-performance environment-friendly radial tire including the same are disclosed herein. The hybrid cord includes a high-modulus fiber ply and a low-modulus fiber ply. The hybrid cord has a stress-strain curve including an initial modulus section, an intermediate modulus section and a final modulus section. The initial modulus of the initial modulus section is higher than the intermediate modulus of the intermediate modulus section, and the final modulus of the final modulus section is higher than the intermediate modulus.Type: ApplicationFiled: October 15, 2015Publication date: April 21, 2016Inventors: Ji Wan LEE, Il Yong PARK, Kum Kang HWANG, Mi Jung LEE, Sung Tae KIM, Hyun Ran CHO
-
Publication number: 20150068655Abstract: Disclosed is a tire-reinforcing steel cord for a radial tire. The tire-reinforcing steel cord has a double layer structure including a first-layer core and a second-layer core provided on the surface of the first-layer core. The first-layer core has an elliptical or rectangular cross section. The tire-reinforcing steel cord can improve processability, fatigue characteristics, and rolling resistance performance of a tire, resulting in improved fuel efficiency. A radial tire using the tire-reinforcing steel cord is also disclosed.Type: ApplicationFiled: April 9, 2014Publication date: March 12, 2015Applicant: HANKOOK TIRE CO., LTD.Inventors: Kwan Woo JUNG, Il Yong PARK, Kum Kang HWANG, Ill Soon JANG, Ji Wan LEE, Mi Jung LEE