Patents by Inventor Hsin-Kai Wang

Hsin-Kai Wang 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: 11990575
    Abstract: A light-emitting device comprises a substrate comprising a sidewall, a first top surface, and a second top surface, wherein the second top surface is closer to the sidewall of the substrate than the first top surface to the sidewall of the substrate; a semiconductor stack formed on the substrate comprising a first semiconductor layer, an active layer, and a second semiconductor layer; a dicing street surrounding the semiconductor stack, and exposing the first top surface and the second top surface of the substrate; a protective layer covering the semiconductor stack; a reflective layer comprising a Distributed Bragg Reflector structure covering the protective layer; and a cap layer covering the reflective layer, wherein the second top surface of the substrate is not covered by the protective layer, the reflective layer, and the cap layer.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: May 21, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Hsin-Ying Wang, Chih-Hao Chen, Chien-Chih Liao, Chao-Hsing Chen, Wu-Tsung Lo, Tsun-Kai Ko, Chen Ou
  • Publication number: 20240139944
    Abstract: The robotic arm operating system includes a control device, a plurality of joint devices and a brake release monitoring device. The control device is used to generate an operation instruction. The joint device is coupled to the control device. Each joint device includes a motor and a driver. The drivers of the joint devices receive the operation instruction to generate corresponding multiple unlocking signals. The unlocking signals are used to release a braking state of the motors of the corresponding joint devices. The brake release monitoring device is coupled to the control device and the joint devices, and includes a plurality of monitoring circuits. When one of the plurality of monitoring circuits does not receive the corresponding unlocking signal, the brake release monitoring device notifies the control device that the operation instruction is not allowed.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 2, 2024
    Inventors: Hsin-Fu WANG, Shun-Kai CHANG, Yen-Shun HUANG
  • Patent number: 10821728
    Abstract: A printing system includes a controller and a thermal printing head including multiple driving elements and an integrated transmission control interface. The thermal printing head is coupled to the controller. The driving elements are configured to print. The integrated transmission control interface coupled to the controller and driving elements is configured to receive from the controller at least one of a compensation data, a printing data, a clock signal, a data signal, a latch signal or a start-heating signal, and send to driving elements the at least one of the compensation data, the printing data, the clock signal, the data signal, the latch signal or the start-heating signal.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 3, 2020
    Assignee: Chien Hwa Coating Technology, Inc.
    Inventors: Wen-Hsiung Lee, Chun-Fei Lin, Shao-Ying Lu, Wei-Sheng Huang, Hsin-Kai Wang
  • Publication number: 20200108602
    Abstract: A printing system includes a controller and a thermal printing head including multiple driving elements and an integrated transmission control interface. The thermal printing head is coupled to the controller. The driving elements are configured to print. The integrated transmission control interface coupled to the controller and driving elements is configured to receive from the controller at least one of a compensation data, a printing data, a clock signal, a data signal, a latch signal or a start-heating signal, and send to driving elements the at least one of the compensation data, the printing data, the clock signal, the data signal, the latch signal or the start-heating signal.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 9, 2020
    Inventors: Wen-Hsiung LEE, Chun-Fei LIN, Shao-Ying LU, Wei-Sheng HUANG, Hsin-Kai WANG
  • Patent number: 8119961
    Abstract: A solar tracking device for solar panel includes a barrel body, a light transmitting unit, a projecting unit, a photosensor unit, and a lens. The light transmitting unit is disposed at a first end of the barrel body oriented toward the sun. The light transmitting unit has a light-transmittable crossing point provided at a center thereof. The projecting unit is an opaque member arranged between the first end and a second end of the barrel body. The photosensor unit is arranged to one side of the projecting unit, so that the projecting unit is located between the light transmitting unit and the photosensor unit. The photosensor unit has a locating center preset at a center of the projecting unit. The lens is arranged between the projecting unit and the photosensor unit. The barrel body is a telescopic barrel enabling the solar tracking device to switch between different operating angle modes.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: February 21, 2012
    Assignee: Pacific Speed Limited
    Inventors: Cheng-Yu Huang, Te-Kai Ku, Hsin-Kai Wang, Chi-Yin Lin
  • Patent number: 7862212
    Abstract: A light emitting diode lens structure includes a lens having an upper section and a lower section. The lower section is provided with a light emitting diode accommodation part. The upper section is coated with a specular reflection layer to form a reflecting surface facing the light emitting diode accommodation part. An illumination apparatus with the light emitting diode lens structure includes a lampshade, a locking module, an electrode module, and a light emitting diode. The lampshade has a reflecting light surface and an aperture. The locking module is coupled on the lampshade and has a through hole corresponding to the aperture. The electrode module is coupled on the locking module and corresponds to the through hole. This design provides a significant reduction in glare to reduce eyestrain.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: January 4, 2011
    Assignee: Pacific Speed Limited
    Inventors: Cheng-Yu Huang, Te-Kai Ku, Hsin-Kai Wang
  • Publication number: 20100095954
    Abstract: A solar tracking device for solar panel includes a barrel body, a light transmitting unit, a projecting unit, a photosensor unit, and a lens. The light transmitting unit is disposed at a first end of the barrel body oriented toward the sun. The light transmitting unit has a light-transmittable crossing point provided at a center thereof. The projecting unit is an opaque member arranged between the first end and a second end of the barrel body. The photosensor unit is arranged to one side of the projecting unit, so that the projecting unit is located between the light transmitting unit and the photosensor unit. The photosensor unit has a locating center preset at a center of the projecting unit. The lens is arranged between the projecting unit and the photosensor unit. The barrel body is a telescopic barrel enabling the solar tracking device to switch between different operating angle modes.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: COMPOUND SOLAR TECHNOLOGY CO., LTD.
    Inventors: Cheng-Yu Huang, Te-Kai Ku, Hsin-Kai Wang, Chi-Yin Lin
  • Publication number: 20090310366
    Abstract: A light emitting diode lens structure includes a lens having an upper section and a lower section. The lower section is provided with a light emitting diode accommodation part. The upper section is coated with a specular reflection layer to form a reflecting surface facing the light emitting diode accommodation part. An illumination apparatus with the light emitting diode lens structure includes a lampshade, a locking module, an electrode module, and a light emitting diode. The lampshade has a reflecting light surface and an aperture. The locking module is coupled on the lampshade and has a through hole corresponding to the aperture. The electrode module is coupled on the locking module and corresponds to the through hole. This design provides a significant reduction in glare to reduce eyestrain.
    Type: Application
    Filed: June 12, 2008
    Publication date: December 17, 2009
    Applicant: COMPOUND SOLAR TECHNOLOGY CO., LTD.
    Inventors: Cheng-Yu Huang, Te-Kai Ku, Hsin-Kai Wang