Patents by Inventor Hoon Chang

Hoon Chang 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: 11126081
    Abstract: The present disclosure relates to a photopolymer composition including: a polymer matrix or a precursor thereof; a photoreactive monomer including a polyfunctional (meth)acrylate monomer having a refractive index of 1.5 or less and a viscosity at 25° C. of 100 cps or less, and a monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more; and a photoinitiator, wherein a content of the monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more in the photoreactive monomer is 60 wt % or more. The present disclosure also relates to a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Boo Kyung Kim, Heon Kim, Seok Hoon Jang, Yeong Rae Chang
  • Patent number: 11124049
    Abstract: A withdrawal-type sun visor includes a housing received in a roof panel. The housing has a storage recess therein. The withdrawal-type sun visor also includes a sun visor assembly configured to be received in the housing and to be withdrawn along a windshield glass of a vehicle. The sun visor assembly includes a display unit having a display region and includes a discoloration unit configured to enclose at least a portion of the display unit. The transmissivity of the discoloration unit is adjustable.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 21, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Yong San Co., Ltd.
    Inventors: Jin Ho Hwang, Dae Ig Jung, Seung Hyeok Chang, Min Ho Cho, Hyung Jin Kim, Sang Hoon Lee
  • Patent number: 11117981
    Abstract: The present invention relates to a photopolymer composition comprising: a polymer matrix or a precursor thereof including a reaction product of a polyol including a polyrotaxane compound and a compound containing at least one isocyanate group; a photoreactive monomer; and a photoinitiator. The present invention also relates to a hologram recording medium produced from the photopolymer composition, an optical element comprising the hologram recording medium, and a holographic recording method using the photopolymer composition.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 14, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Heon Kim, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang
  • Patent number: 11112599
    Abstract: The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein a roughness skewness (Rsk) of the concavo-convex shape of the surface is greater than 0.5 and less than 5, and a slope angle of the concavo-convex shape of the surface is greater than 0.01 degree and less than 0.2 degree, and a display device comprising the antireflection film.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: September 7, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hyun Seo, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo, Boo Kyung Kim
  • Publication number: 20210272815
    Abstract: A method of fabricating a semiconductor device is provided. The method includes: forming mask patterns on a substrate, the mask patterns including a first mask fin pattern, a second mask fin pattern and a dummy mask pattern between the first mask fin pattern and the second mask fin pattern; forming a first fin pattern, a second fin pattern and a dummy fin pattern by etching the substrate using the mask patterns; and removing the dummy fin pattern, wherein the dummy mask pattern is wider than each of the first mask fin pattern and the second mask fin pattern.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 2, 2021
    Inventors: Chong Kwang Chang, Dong Hoon Khang, Sug Hyun Sung, Min Hwan Jeon
  • Patent number: 11102971
    Abstract: The present invention relates to an insect trap for attracting insects using a UV LED and sucking and capturing the attracted insects with a fan. The insect trap of the present invention comprises: a body; a suction part provided on one side of the body; a fan installed behind the suction part; at least one UV LED, provided on the body at least around the fan, for irradiating ultraviolet rays forward; a discharge part for discharging air sucked in by the suction part in a direction different from the air suction direction of the suction part; a duct which is an air passage from the suction part to the discharge part; a first streamlined inner surface, provided on an inner wall side opposite to a direction in which the duct extends on the basis of the suction part, for guiding air sucked into the suction part toward the duct; and an insect net, installed in the discharge part, for passing the air therethrough and capturing insects being sucked in together with the air.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: August 31, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Mi So Ko, Chung Hoon Lee, Hoon Sik Eom, Sang Hyun Chang
  • Patent number: 11099420
    Abstract: An optical device is disclose herein. In some embodiments, an optical device includes an active liquid crystal element film, wherein the active liquid crystal element film comprises two base films, an active liquid crystal layer present between the two base films, wherein the active liquid crystal layer contains a liquid crystal compound and is capable of switching between a first oriented state and a second oriented state, and a polarizing coating layer, wherein the polarizing coating layer is present between one of the two base films and the active liquid crystal layer. The optical device is capable of varying transmittance, and can be used for various applications such as sunglasses, AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: August 24, 2021
    Inventors: Ji Hoon Park, Byoung Kun Jeon, Moon Soo Park, Jun Won Chang, Dae Hee Lee, Hye Min Yu, Young Shin Lee, Byung Sun Lee
  • Patent number: 11098434
    Abstract: A washing machine comprises: an outer tub containing water; an inner tub rotating on a vertical axis within the outer tub and having a first opening at the bottom; a motor providing torque; a dewatering shaft rotating by the motor; and a hub supporting the inner tub from the bottom, wherein the hub comprises: a connecting boss whose center is connected to the dewatering shaft; a plurality of spokes extending outward radially from the connecting boss and having second openings overlapping the first opening; and a circular flange connecting the outer edges of the spokes and attached to the bottom of the inner tub, wherein the spokes comprise at least one first spoke whose underside faces the bottom of the outer tub and is entirely smooth.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: August 24, 2021
    Assignee: LG Electronics Inc.
    Inventors: Sangdeog Byeon, Hoon Chang
  • Publication number: 20210090144
    Abstract: Provided are an ordering method and apparatus for consolidating purchase orders for products or services into one order under a particular condition and collectively processing the purchase orders when a plurality of purchasers in an acquaintance relationship make the purchase orders using electronic communications devices. According to the ordering method and apparatus, when a single purchaser makes an order, a group consisting of potential purchasers who can make a group order is created using acquaintance information of the single purchaser, and order information of the single purchaser is shared among the group members. According to the ordering method and apparatus, a group consisting of group purchasers desiring ordering among the group members is created, and group order information is generated using order information received from the members. The generated group order information is transferred to a seller, and thus an order is finally made.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventor: Gil Hoon Chang
  • Publication number: 20210042765
    Abstract: A payment interface device and system, a payment method, and a payment server is provided. The system and method includes: a seller interface unit which acquires a payer identifier, which is identification information of a payer who has purchased a product, from a payment terminal carried by the payer, receives an input of payment information of the payer matching the acquired payer identifier, and requests a payment server for the payment from the payer, on the basis of the input payment information; and a payer interface unit which can be separated from the seller interface unit, and provides the payer with the payment information input to the seller interface unit.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Inventor: Gil Hoon Chang
  • Publication number: 20210000161
    Abstract: The present invention relates to a composition for smokeless tobacco and orally dissolvable film-type smokeless tobacco comprising same. More specifically, the present invention relates to a composition for orally dissolvable film-type smokeless tobacco, which is capable of improving the intraoral uptake rate, moldability, and taste of nicotine while reducing harmfulness to the human body, orally dissolvable film-type smokeless tobacco comprising same, and a manufacturing method thereof.
    Type: Application
    Filed: March 11, 2019
    Publication date: January 7, 2021
    Inventor: Seok Hoon CHANG
  • Patent number: 10724166
    Abstract: A laundry treating apparatus may include a tub, a drum provided within the tub to accommodate laundry, flow path units provided on the drum to provide moving paths of water, an agitation unit provided within the drum so as to be rotatable and moving at least a part of water within the drum to the flow path units during rotation, and filter units to filter water moving along the flow path units. Each of the filter units includes a body configured to provide a storage space of foreign substances, an inflow part to introduce water in the flow path unit into the body, a filter provided on the body to filter water introduced into the body and then to discharge filtered water to the drum, and discharge parts provided on the body to discharge water containing foreign substances in the tangential direction of a rotating trajectory of the drum.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: July 28, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Deukwon Lee, Kyoungmin Choi, Hoon Chang, Dongwoo Kang
  • Publication number: 20190380360
    Abstract: Provided is a method of preparing a fermented guar meal, and specifically, a method of preparing a fermented guar meal, the method including the steps of pretreating a guar meal; seeding a Bacillus strain in the pretreated guar meal; and solid-state fermenting the strain seeded in the guar meal to obtain the fermented guar meal, a fermented guar meal prepared by the above method, and a feed composition including the fermented guar meal.
    Type: Application
    Filed: February 28, 2018
    Publication date: December 19, 2019
    Inventors: Kyeongil KANG, Seong Jun CHO, Jehoon RYU, Kyung Hoon CHANG, Seung Won PARK
  • Publication number: 20190386950
    Abstract: The present invention relates to a message sharing system and method for an interactive chatting application, comprising: a message sharing server for sharing, with at least one heterogeneous application, all or some of messages transmitted/received in an interactive chatting application for chatting with at least one other user by exchanging messages with each other; and a message sharing device which is connected online to the message sharing server so as to receive a terminal's support for information for sharing the messages or information for executing a message sharing function.
    Type: Application
    Filed: February 26, 2018
    Publication date: December 19, 2019
    Inventor: Gil Hoon Chang
  • Patent number: 10507166
    Abstract: In an apparatus and method of manufacturing a multi-column multi-medicine oral dissolving film according to the present invention, all processes from film feeding, medicine coating, and medicine drying to product packaging are implemented as continuous automation processes, and under the automation processes, different kinds of medicines are coated on a base film in multiple columns in a signal layer by using a plurality of nozzles supplied with the different kinds of medicines, so that it is possible to improve productivity through the automation processes, to ensure product quality due to efficiency during drying caused by maintaining the thickness of the product, and to provide a convenience in the case of taking various kinds of small-amount medicines at one time or in the case of separately and selectively taking different kinds of medicines.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 17, 2019
    Assignee: C. L. Pharm
    Inventors: Su Hak Heo, Gi Hwan Kim, Kang Mo Sung, Seok Hoon Chang
  • Patent number: 10399290
    Abstract: A method of manufacturing a composite material that is formed to include an aperture is provided. The method includes disposing a plurality of woven substances including reinforcement fibers on a jig having a protrusion to fit the woven substances on the protrusion and thus provide the aperture. Additionally, the method includes integrally mounting the jig and a plurality of the woven substances in a mold, and adding a resin to the mold to immerse the plurality of the woven substances with the resin.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: September 3, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hoon Chang, Jeong Min Cho, Huen Sick Min
  • Publication number: 20190249353
    Abstract: A laundry treating apparatus may include a tub, a drum provided within the tub to accommodate laundry, flow path units provided on the drum to provide moving paths of water, an agitation unit provided within the drum so as to be rotatable and moving at least a part of water within the drum to the flow path units during rotation, and filter units to filter water moving along the flow path units. Each of the filter units includes a body configured to provide a storage space of foreign substances, an inflow part to introduce water in the flow path unit into the body, a filter provided on the body to filter water introduced into the body and then to discharge filtered water to the drum, and discharge parts provided on the body to discharge water containing foreign substances in the tangential direction of a rotating trajectory of the drum.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Deukwon LEE, Kyoungmin CHOI, Hoon CHANG, Dongwoo KANG
  • Publication number: 20190253942
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A handover method for a terminal according to one embodiment of the present disclosure may include: receiving, from a source cell, a message including information on one or more target cells for performing a fast handover; and performing a fast handover by reusing a radio bearer based on the received information.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 15, 2019
    Inventors: Seungbo YOO, Daejoong KIM, Hoon CHANG, Namryul JEON
  • Patent number: 10309050
    Abstract: A laundry treating apparatus may include a tub, a drum provided within the tub to accommodate laundry, flow path units provided on the drum to provide moving paths of water, an agitation unit provided within the drum so as to be rotatable and moving at least a part of water within the drum to the flow path units during rotation, and filter units to filter water moving along the flow path units. Each of the filter units includes a body configured to provide a storage space of foreign substances, an inflow part to introduce water in the flow path unit into the body, a filter provided on the body to filter water introduced into the body and then to discharge filtered water to the drum, and discharge parts provided on the body to discharge water containing foreign substances in the tangential direction of a rotating trajectory of the drum.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: June 4, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Deukwon Lee, Kyoungmin Choi, Hoon Chang, Dongwoo Kang
  • Publication number: 20190161898
    Abstract: A washing machine comprises: an outer tub containing water; an inner tub rotating on a vertical axis within the outer tub and having a first opening at the bottom; a motor providing torque; a dewatering shaft rotating by the motor; and a hub supporting the inner tub from the bottom, wherein the hub comprises: a connecting boss whose center is connected to the dewatering shaft; a plurality of spokes extending outward radially from the connecting boss and having second openings overlapping the first opening; and a circular flange connecting the outer edges of the spokes and attached to the bottom of the inner tub, wherein the spokes comprise at least one first spoke whose underside faces the bottom of the outer tub and is entirely smooth.
    Type: Application
    Filed: November 29, 2018
    Publication date: May 30, 2019
    Inventors: Sangdeog Byeon, Hoon Chang