Patents by Inventor Byungchul Hong

Byungchul Hong 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: 20240101899
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 28, 2024
    Applicants: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Patent number: 11873435
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: January 16, 2024
    Assignees: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Publication number: 20230193126
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Applicants: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Publication number: 20230195636
    Abstract: In some embodiments, a multi-port queueing cache includes a plurality of first ports, a plurality of second ports, a plurality of request handlers respectively coupled to the plurality of first ports, a cache storage unit coupled to the plurality of second ports, a reserve interface configured to exchange at least one address and at least one reserved cache line number, and a request interface configured to exchange the at least one reserved cache line number and at least one data. The reserve interface and the request interface are disposed between the plurality of request handlers and the cache storage unit. The cache storage unit includes a plurality of cache lines configured to store the plurality of data. The cache storage unit is configured to output a portion of the plurality of addresses, and receive a portion of the plurality of data corresponding to the portion of the plurality of addresses.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 22, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heonsoo LEE, Byungchul HONG, Junseok PARK, Jaehun CHUNG
  • Patent number: 11680206
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: June 20, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Byungchul Hong
  • Patent number: 11613698
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 28, 2023
    Assignees: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Patent number: 11560516
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 24, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Byungchul Hong
  • Publication number: 20220177779
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Byungchul HONG
  • Publication number: 20210062085
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Applicant: CITIZEN ELECTRONICS CO., LTD.
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Patent number: 10858582
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 1000 C to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 8, 2020
    Assignee: CITIZEN ELECTRONICS CO., LTD.
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Publication number: 20200048549
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Application
    Filed: October 2, 2019
    Publication date: February 13, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Byungchul HONG
  • Patent number: 10430353
    Abstract: A memory device includes a memory cell region including a plurality of memory cells; a memory cell controller configured to control read and write operation for the memory cell region; one or more NDP engines configured to perform a near data processing (NDP) operation for the memory cell region; a command buffer configured to store an NDP command transmitted from a host; and an engine scheduler configured to schedule the NDP operation for the one or more NDP engines according to the NDP command.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: October 1, 2019
    Assignees: SK hynix Inc., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byungchul Hong, John Dongjun Kim, Jungho Ahn, Yongkee Kwon, Hongsik Kim
  • Patent number: 10370589
    Abstract: The present invention addresses providing a novel narrowband red phosphor having a high internal quantum efficiency, a short afterglow time, and a large number of emission components in a short-wavelength region with high red visibility. This is solved by a phosphor characterized by including a crystalline phase that has a predetermined composition and having a specific peak in a powder X-ray diffraction pattern.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: August 6, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Byungchul Hong, Ayuko Onozuka
  • Publication number: 20180305612
    Abstract: The present invention addresses providing a novel narrowband red phosphor having a high internal quantum efficiency, a short afterglow time, and a large number of emission components in a short-wavelength region with high red visibility. This is solved by a phosphor characterized by including a crystalline phase that has a predetermined composition and having a specific peak in a powder X-ray diffraction pattern.
    Type: Application
    Filed: June 18, 2018
    Publication date: October 25, 2018
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Byungchul Hong, Ayuko Onozuka
  • Publication number: 20180273842
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 27, 2018
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Patent number: 10011769
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: July 3, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Publication number: 20180173654
    Abstract: A memory device includes a memory cell region including a plurality of memory cells; a memory cell controller configured to control read and write operation for the memory cell region; one or more NDP engines configured to perform a near data processing (NDP) operation for the memory cell region; a command buffer configured to store an NDP command transmitted from a host; and an engine scheduler configured to schedule the NDP operation for the one or more NDP engines according to the NDP command.
    Type: Application
    Filed: July 20, 2017
    Publication date: June 21, 2018
    Inventors: Byungchul HONG, John Dongjun KIM, Jungho AHN, Yongkee KWON, Hongsik KIM
  • Patent number: 9777213
    Abstract: The phosphor of the present invention comprises a crystal phase having a chemical composition represented by the following formula [2], the crystal phase having no garnet structure, and the phosphor having an emission peak in a wavelength range of 600 nm to 650 nm by being activated by at least Mn4+, A2aiiB2biiC2ciiD2diiX2xii??formula [2].
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 3, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Byungchul Hong, Atsushi Oishi
  • Publication number: 20170158957
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: November 21, 2016
    Publication date: June 8, 2017
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Patent number: 9541238
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: January 10, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe