Patents by Inventor Jun BU
Jun BU 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: 11764336Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: GrantFiled: July 26, 2021Date of Patent: September 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun Sim, Yong Il Kim, Ha Nul Yoo, Ji Hye Yeon, Jun Bu Youn, Ji Hoon Yun, Su Hyun Jo
-
Publication number: 20210351330Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: ApplicationFiled: July 26, 2021Publication date: November 11, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun SIM, Yong II KIM, Ha Nul YOO, Ji Hye YEON, Jun Bu YOUN, Ji Hoon YUN, Su Hyun JO
-
Patent number: 11075326Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: GrantFiled: June 26, 2020Date of Patent: July 27, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun Sim, Yong Il Kim, Ha Nul Yoo, Ji Hye Yeon, Jun Bu Youn, Ji Hoon Yun, Su Hyun Jo
-
Patent number: 11053427Abstract: A low density, high-strength, degradable temporary plugging agent which includes 60% by weight to 85% by weight of polylactic acid, 5% by weight to 20% by weight of a starch, 5% by weight to 10% by weight of polycaprolactone, 2% by weight to 5% by weight of a solubilizing agent, and 2% by weight to 5% by weight of a toughening agent, based on 100% by weight of the total weight of the agent. The rigid agent can result in bridge plugging in existing cracks, with a significant increase in pressure. The preparation method is simple, the process requirements are low, and industrial production can be realized. When applied to temporary plugging fracturing, under formation conditions, it can be completely degraded within a certain period of time and will not cause secondary damage to the reservoir, while preventing the agent from polluting the formation and the occurrence of pump accidents.Type: GrantFiled: December 28, 2018Date of Patent: July 6, 2021Assignee: PetroChina Company LimitedInventors: Baoqiang Lv, Lijun Mu, Zhenfeng Zhao, Hongjun Lu, Xiangqian Bu, Yin Qi, Jianshan Li, Boping Zhao, Xiangping Li, Jianhui Li, Li'an Yang, Jun Bu
-
Publication number: 20200328329Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun SIM, Yong II KIM, Ha Nul YOO, Ji Hye YEON, Jun Bu YOUN, Ji Hoon YUN, Su Hyun JO
-
Patent number: 10700246Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: GrantFiled: March 12, 2019Date of Patent: June 30, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun Sim, Yong Il Kim, Ha Nul Yoo, Ji Hye Yeon, Jun Bu Youn, Ji Hoon Yun, Su Hyun Jo
-
Publication number: 20200105980Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.Type: ApplicationFiled: March 12, 2019Publication date: April 2, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Hyun SIM, Yong Il KIM, Ha Nul YOO, Ji Hye YEON, Jun Bu YOUN, Ji Hoon YUN, Su Hyun JO
-
Publication number: 20190136116Abstract: A low density, high-strength, degradable temporary plugging agent which includes 60% by weight to 85% by weight of polylactic acid, 5% by weight to 20% by weight of a starch, 5% by weight to 10% by weight of polycaprolactone, 2% by weight to 5% by weight of a solubilizing agent, and 2% by weight to 5% by weight of a toughening agent, based on 100% by weight of the total weight of the agent. The rigid agent can result in bridge plugging in existing cracks, with a significant increase in pressure. The preparation method is simple, the process requirements are low, and industrial production can be realized. When applied to temporary plugging fracturing, under formation conditions, it can be completely degraded within a certain period of time and will not cause secondary damage to the reservoir, while preventing the agent from polluting the formation and the occurrence of pump accidents.Type: ApplicationFiled: December 28, 2018Publication date: May 9, 2019Applicant: PetroChina Company LimitedInventors: Baoqiang LV, Lijun MU, Zhenfeng ZHAO, Hongjun LU, Xiangqian BU, Yin QI, Jianshan LI, Boping ZHAO, Xiangping LI, Jianhui LI, Li'an YANG, Jun BU