Patents by Inventor Yikai YUAN

Yikai YUAN 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: 11974387
    Abstract: Provided are a power module and a heat sink system. The power module includes a first circuit board, a second circuit board, at least one discrete component and an encapsulation body. One discrete component includes a lead frame and at least one chip, the lead frame is disposed between the first circuit board and the second circuit board, the lead frame includes two end faces and multiple mounting lateral surfaces connected in sequence, an angle is formed between one end face and one mounting lateral surface, one of the two end faces is electrically connected to the first circuit board and the other of the two end faces is electrically connected to the second circuit board, and the chip is disposed on each of the multiple mounting lateral surfaces. The encapsulation body is configured to pot a space between the first circuit board and the second circuit board.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: April 30, 2024
    Assignee: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.
    Inventors: Nianbin Cheng, Cheng Li, Lifang Liang, Yikai Yuan, Honggui Zhan, Xiangxuan Tan
  • Patent number: 11898712
    Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ?(?). A relative spectrum of a black body radiation with a corresponding color temperature is S(?). An area normalization is performed on ?(?) and S(?) to convert an equal energy spectrum ??(?) of the white light emitting device and an equal energy spectrum S?(?) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - ? ? ? ? i ? ? n ? ? S ? ? ( ? ) - ? ? ? ( ? ) ? ? ? ? i ? ? n ? S ? ? ( ? ) , when ?i is 380 nm, ?n is 680 nm, R?85%.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: February 13, 2024
    Assignee: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD
    Inventors: Jinhui Zhang, Yikai Yuan, Long Zhao, Chuyi Li, Cheng Li
  • Patent number: 11732872
    Abstract: A light-emitting system for healthy lighting, a light bar and a light fixture, wherein they are applied to the field of lighting and can emit white light with a color temperature range of 2700 K to 6500 K. A relative spectral power of the light-emitting system is set to be ? (?), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set to be S (?). The white light has a first characteristic waveband, and a wavelength region of the first characteristic waveband is 380-405 nm. The white light has a second characteristic waveband, and a wavelength region of the second characteristic waveband is 415-455 nm. The white light has a third characteristic waveband, and a wavelength region of the third characteristic waveband is 465-495 nm.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 22, 2023
    Assignee: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.
    Inventors: Jinhui Zhang, Long Zhao, Yikai Yuan, Jiajie Zeng, Cheng Li
  • Publication number: 20230245945
    Abstract: Provided are a discrete component, a power module and a heat sink system. The discrete component includes a lead frame and a chip. The lead frame includes a top and a bottom disposed adjacent to each other. The top includes a support surface and multiple lateral surfaces connected in sequence. The multiple lateral surfaces are located between the support surface and the bottom. The chip is disposed on each of at least one lateral surface of the multiple lateral surfaces separately. The top of the lead frame is configured to be a metal structure.
    Type: Application
    Filed: July 22, 2022
    Publication date: August 3, 2023
    Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.
    Inventors: Nianbin Cheng, Cheng Li, Lifang Liang, Yikai Yuan, Honggui Zhan, Xiangxuan Tan
  • Publication number: 20230217580
    Abstract: Provided are a power module and a heat sink system. The power module includes a first circuit board, a second circuit board, at least one discrete component and an encapsulation body. One discrete component includes a lead frame and at least one chip, the lead frame is disposed between the first circuit board and the second circuit board, the lead frame includes two end faces and multiple mounting lateral surfaces connected in sequence, an angle is formed between one end face and one mounting lateral surface, one of the two end faces is electrically connected to the first circuit board and the other of the two end faces is electrically connected to the second circuit board, and the chip is disposed on each of the multiple mounting lateral surfaces. The encapsulation body is configured to pot a space between the first circuit board and the second circuit board.
    Type: Application
    Filed: July 19, 2022
    Publication date: July 6, 2023
    Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.
    Inventors: Nianbin Cheng, Cheng Li, Lifang Liang, Yikai Yuan, Honggui Zhan, Xiangxuan Tan
  • Publication number: 20220376147
    Abstract: The disclosure provides a full-color light emitting device and a display module. A light emitting layer, a refractive layer, a spacer layer and a light processing layer are included. The refractive layer is disposed above the light emitting layer, the spacer layer is disposed above the refractive layer, and the light processing layer is disposed above the spacer layer. The light emitting layer includes a first light emitting part, a second light emitting part and a third light emitting part. The light processing layer includes a first light processing part, a second light processing part, and a third light processing part, and a baffle wall is disposed between any two adjacent light processing parts in the first light processing part, the second light processing part and the third light processing part. A light refractive index of the refractive layer is greater than a light refractive index of the spacer layer.
    Type: Application
    Filed: April 21, 2020
    Publication date: November 24, 2022
    Inventors: Yunyuan ZHANG, Jinhui ZHANG, Yikai YUAN, Cheng LI
  • Publication number: 20220285429
    Abstract: This application provides a light-emitting chip and a light-emitting unit. The light-emitting chip includes light-emitting portions arrayed in n rows and m columns. A surface of the light-emitting chip is provided with n common a-pole electrodes and n×m b-pole electrodes. Each light-emitting portion has an a-pole and a b-pole having an opposite polarity. The b-pole of each light-emitting portion is electrically connected to the b-pole electrode corresponding to the n×m b-pole electrodes, and the a-poles of m light-emitting portions in the ith row are electrically connected to the common a-pole electrode corresponding to the n common a-pole electrodes, where 1?i?n, n?1, m>1, and n, m, and i are integers.
    Type: Application
    Filed: April 21, 2020
    Publication date: September 8, 2022
    Inventors: Jinhui ZHANG, Mengping TAN, Yikai YUAN, Cheng LI
  • Publication number: 20220214019
    Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ?(?). A relative spectrum of a black body radiation with a corresponding color temperature is S(?). An area normalization is performed on ?(?) and S(?) to convert an equal energy spectrum ??(?) of the white light emitting device and an equal energy spectrum S?(?) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - ? ? ? ? i ? ? n ? ? S ? ? ( ? ) - ? ? ? ( ? ) ? ? ? ? i ? ? n ? S ? ? ( ? ) , when ?i is 380 nm, ?n is 680 nm, R?85%.
    Type: Application
    Filed: December 12, 2019
    Publication date: July 7, 2022
    Inventors: Jinhui ZHANG, Yikai YUAN, Long ZHAO, Chuyi LI, Cheng LI
  • Publication number: 20220205613
    Abstract: A light-emitting system for healthy lighting, a light bar and a light fixture, wherein they are applied to the field of lighting and can emit white light with a color temperature range of 2700 K to 6500 K. A relative spectral power of the light-emitting system is set to be ? (?), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set to be S (?). The white light has a first characteristic waveband, and a wavelength region of the first characteristic waveband is 380-405 nm. The white light has a second characteristic waveband, and a wavelength region of the second characteristic waveband is 415-455 nm. The white light has a third characteristic waveband, and a wavelength region of the third characteristic waveband is 465-495 nm.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 30, 2022
    Inventors: Jinhui ZHANG, Long ZHAO, Yikai YUAN, Jiajie ZENG, Cheng LI