Patents by Inventor Chang Jung Park
Chang Jung Park 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).
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Publication number: 20240168377Abstract: Disclosed are a photosensitive resin composition, a photosensitive resin layer manufactured using the same, and a color filter. Specifically, an embodiment provides a photosensitive resin composition including (A) a colorant; (B) a photopolymerizable compound; (C) a photopolymerization initiator; (D) a binder resin; and (E) a solvent, wherein the colorant includes a pigment, a dispersant, and a dispersing aid represented by Chemical Formula 1: (Each substituent of Chemical Formula 1 is as defined in the specification.Type: ApplicationFiled: October 16, 2023Publication date: May 23, 2024Inventors: Chang-Hyun KWON, Baek Soung PARK, Juho JUNG, Kwangwon SEO, Heejo MOON
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Publication number: 20240074258Abstract: An electronic device includes a display device, which may be fabricated using a described method. The display device includes a glass substrate including a first surface, a second surface opposite the first surface, and a side surface between the first surface and the second surface, an outermost structure on the first surface of the glass substrate and located adjacent to an edge of one side of the glass substrate, and a display area including a plurality of light emitting areas on the first surface of the glass substrate and located farther from the edge of the one side of the glass substrate than the outermost structure is. A minimum distance from the side surface of the glass substrate to the outermost structure is equal to 130 ?m or less.Type: ApplicationFiled: May 5, 2023Publication date: February 29, 2024Inventors: Wan Jung KIM, Dong Jo KIM, Sun Hwa KIM, Young Ji KIM, Chang Sik KIM, Kyung Ah NAM, Hyo Young MUN, Yong Seung PARK, Yi Seul UM, Dae Sang YUN, Kwan Hee LEE, So Young LEE, Young Hoon LEE, Young Seo CHOI, Sun Young KIM, Ji Won SOHN, Do Young LEE, Seung Hoon LEE
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Publication number: 20220212505Abstract: A pneumatic tire includes a tread portion having a tread surface for making contacting with a road surface and a groove recessed inward from the tread surface and extending along a circumferential direction, and a plurality of noise reflectors protruding from the groove and disposed spaced apart from each other along the circumferential direction. The groove includes a groove bottom surface spaced apart by a predetermined distance from the tread surface in a radial direction of the pneumatic tire and a plurality of groove side surfaces connected to the groove bottom surface and each including a connection curved surface having a predetermined curvature. Each of the noise reflectors includes a support surface supported by the connection curved surface and the groove bottom surface and a protrusion surface located on a side opposite to the support surface and disposed to be spaced apart from the connection curved surface.Type: ApplicationFiled: September 22, 2021Publication date: July 7, 2022Inventors: Chang Jung PARK, Jae Moon LEE, Tae Min KIM, Soo Min KIM
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Patent number: 11331950Abstract: A non-pneumatic tire comprises: a band part including an inner band and an outer band, the outer band being separated from the inner band by a predetermined distance to surround the inner band; and a spoke part provided to extend in a circumferential direction of the tire between the inner band and the outer band, the spoke part including one or more holes when viewed in the circumferential direction and one or more holes when viewed in an axial direction of the tire.Type: GrantFiled: November 20, 2019Date of Patent: May 17, 2022Assignee: Kumho Tire Co., Inc.Inventors: Soon Wook Hwang, Kee Woon Kim, Chui Woo Kwark, Chang Jung Park
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Patent number: 11059326Abstract: A rim for a non-pneumatic tire comprises a cylindrical rim wall portion, and a fixing member disposed to be spaced apart from the rim wall portion in a radial direction. The rim wall portion is provided with a fixing protrusion protruding in the radial direction or a fixing groove depressed in the radial direction.Type: GrantFiled: October 31, 2018Date of Patent: July 13, 2021Assignee: KUMHO TIRE CO., INC.Inventors: Soon Wook Hwang, Kee Woon Kim, Chul Woo Kwark, Gwi Seong Shin, Chang Jung Park
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Patent number: 10960708Abstract: A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including an inner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band, and spokes provided between the inner band and the outer band to connect the inner band and the outer band.Type: GrantFiled: September 19, 2017Date of Patent: March 30, 2021Assignee: KUMHO TIRE CO., INC.Inventors: Chul-Woo Kwark, Kee-Woon Kim, Chang-Jung Park, Gwi-Sung Shin, Soon-Wook Hwang
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Publication number: 20210039439Abstract: A non-pneumatic tire comprises: a band part including an inner band and an outer band, the outer band being separated from the inner band by a predetermined distance to surround the inner band; and a spoke part provided to extend in a circumferential direction of the tire between the inner band and the outer band, the spoke part including one or more holes when viewed in the circumferential direction and one or more holes when viewed in an axial direction of the tire.Type: ApplicationFiled: November 20, 2019Publication date: February 11, 2021Inventors: Soon Wook HWANG, Kee Woon KIM, Chul Woo KWARK, Chang Jung PARK
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Patent number: 10654318Abstract: In view of the above, the disclosure provides a non-pneumatic tire capable of enhancing a load supporting performance and a shock absorbing effect and improving a braking and traction performance. The present disclosure provides a non-pneumatic tire comprising a band part and a spoke part; where, a band part includes an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and where, a spoke part includes a plurality of first spokes that is arranged in a circumferential direction between the inner band and the outer band and connects the inner band and the outer band. Furthermore, according to another embodiment, a spoke part may include second spokes that connected to first spokes adjacent to each other at wherein first embodiment.Type: GrantFiled: May 17, 2017Date of Patent: May 19, 2020Assignees: KUMHO TIRE CO., INC., THE YOKOHAMA RUBBER COMPANY, LTD.Inventors: Kee-Woon Kim, Chang-Jung Park, Chul-Woo Kwark, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
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Patent number: 10538130Abstract: A non-pneumatic tire includes a band part, including an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and a spoke part, extending in a circumferential direction between the inner band and the outer band, having a circumferential cross section having one or more holes.Type: GrantFiled: July 7, 2017Date of Patent: January 21, 2020Assignees: KUMHO TIRE CO., INC., THE YOKOHAMA RUBBER COMPANY, LTD.Inventors: Kee-Woon Kim, Chul-Woo Kwark, Chang-Jung Park, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
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Publication number: 20190152256Abstract: A rim for a non-pneumatic tire comprises a cylindrical rim wall portion, and a fixing member disposed to be spaced apart from the rim wall portion in a radial direction. The rim wall portion is provided with a fixing protrusion protruding in the radial direction or a fixing groove depressed in the radial direction.Type: ApplicationFiled: October 31, 2018Publication date: May 23, 2019Inventors: Soon Wook HWANG, Kee Woon KIM, Chul Woo KWARK, Gwi Seong SHIN, Chang Jung PARK
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Publication number: 20180354314Abstract: A pneumatic tire, includes: a lug groove outermost in a lateral direction in a tread portion, the lug groove opening outward in the lateral direction; and a projection portion outward of an opening portion of the lug groove in the lateral direction, the projection portion extending outward in a radial direction past a groove bottom of the lug groove at maximum groove depth and including an end inward of a road contact surface of the tread portion in the radial direction, when the pneumatic tire is inflated to a regular internal pressure and loaded with 70% of a regular load; the projection portion including a body projecting from a tire surface, and an end projection extending from the end of the body with a step portion as an interface, and the end projection having a thinner meridian cross-sectional width than a meridian cross-sectional width of the end of the body.Type: ApplicationFiled: November 25, 2015Publication date: December 13, 2018Inventors: Hiroshi Hata, Jun Matsuda, Kee Woon Kim, Chang Jung Park
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Publication number: 20180345730Abstract: A pneumatic tire includes a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and including an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a reinforcing portion disposed at least at a base end of the projection portion, the reinforcing portion having a JIS-A rubber hardness greater than that of a rubber material around the projection portion.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Inventors: Hiroshi HATA, Jun MATSUDA, Kee Woon KIM, Chang Jung PARK
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Publication number: 20180345728Abstract: A pneumatic tire comprises a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and comprising an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a reinforcing portion projecting from a surface of the projection portion.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Applicants: The Yokohama Rubber Co., LTD., Kumho Tire Co., Inc.Inventors: Hiroshi Hata, Jun Matsuda, Kee Woon Kim, Chang Jung Park
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Publication number: 20180345729Abstract: A pneumatic tire comprises a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and comprising an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a stopper portion projecting from a surface of the tread portion at a position outward of a ground contact edge in the tire lateral direction and inward of the projection portion in the tire lateral direction.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Applicants: The Yokohama Rubber Co., Ltd., Kumho Tire Co., Inc.Inventors: Hiroshi HATA, Jun MATSUDA, Kee Woon KIM, Chang Jung PARK
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Publication number: 20180290492Abstract: A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including an inner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band, and spokes provided between the inner band and the outer band to connect the inner band and the outer band.Type: ApplicationFiled: September 19, 2017Publication date: October 11, 2018Inventors: Chul-Woo KWARK, Kee-Woon KIM, Chang-Jung PARK, Gwi-Sung SHIN, Soon-Wook HWANG
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Publication number: 20180029420Abstract: In view of the above, the disclosure provides a non-pneumatic tire capable of enhancing a load supporting performance and a shock absorbing effect and improving a braking and traction performance. The present disclosure provides a non-pneumatic tire comprising a band part and a spoke part; where, a band part includes an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and where, a spoke part includes a plurality of first spokes that is arranged in a circumferential direction between the inner band and the outer band and connects the inner band and the outer band. Furthermore, according to another embodiment, a spoke part may include second spokes that connected to first spokes adjacent to each other at wherein first embodiment.Type: ApplicationFiled: May 17, 2017Publication date: February 1, 2018Inventors: Kee-Woon Kim, Chang-Jung Park, Chul-Woo Kwark, Gwi-Sung Shin, Soon-Wook Hwang, Michio Shimizu, Jun Matsuda
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Publication number: 20180029419Abstract: A non-pneumatic tire includes a band part, including an inner band and an outer band that is separated from the inner band and surrounds an outer peripheral surface of the inner band; and a spoke part, extending in a circumferential direction between the inner band and the outer band, having a circumferential cross section having one or more holes.Type: ApplicationFiled: July 7, 2017Publication date: February 1, 2018Inventors: Kee-Woon KIM, Chul-Woo KWARK, Chang-Jung PARK, Gwi-Sung SHIN, Soon-Wook HWANG, Michio SHIMIZU, Jun MATSUDA
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Patent number: D803146Type: GrantFiled: October 19, 2015Date of Patent: November 21, 2017Inventors: Kee-Woon Kim, Chang-Jung Park, Michio Shimizu, Hiroshi Hata, Jun Matsuda
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Patent number: D856267Type: GrantFiled: February 28, 2018Date of Patent: August 13, 2019Inventors: In Hee Park, Chang Jung Park
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Patent number: D998550Type: GrantFiled: March 17, 2022Date of Patent: September 12, 2023Inventors: Tae Min Kim, Soo Min Kim, Chang Jung Park