Patents by Inventor Weimin HAO

Weimin HAO 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: 9762327
    Abstract: A single-core optical transceiver is an optical transceiver for transmitting or receiving an optical signal through a single optical fiber. The single-core optical transceiver has a light emitting device for transmitting the optical signal and a light receiving device for receiving the optical signal. The light emitting device is an LED configured including a sapphire substrate arranged on a light receiving surface of the light receiving device so as to be coaxial with the light receiving surface, and a nitride semiconductor layer laid on the sapphire substrate. Even with the light emitting device being arranged on the light receiving surface of the light receiving device, the optical signal from the optical fiber can be received on the entire area of the light receiving surface, so as to adequately improve the light sensitivity.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: September 12, 2017
    Assignees: HAMAMATSU PHOTONICS K.K., Nanjing Guanglu Electronics Co., Ltd., CHINA ELECTRIC POWER RESEARCH INSTITUTE
    Inventors: Yuto Inagaki, Takayuki Suzuki, Guo Xiang Hu, Weimin Hao
  • Publication number: 20150311981
    Abstract: A single-core optical transceiver is an optical transceiver for transmitting or receiving an optical signal through a single optical fiber. The single-core optical transceiver has a light emitting device for transmitting the optical signal and a light receiving device for receiving the optical signal. The light emitting device is an LED configured including a sapphire substrate arranged on a light receiving surface of the light receiving device so as to be coaxial with the light receiving surface, and a nitride semiconductor layer laid on the sapphire substrate. Even with the light emitting device being arranged on the light receiving surface of the light receiving device, the optical signal from the optical fiber can be received on the entire area of the light receiving surface, so as to adequately improve the light sensitivity.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 29, 2015
    Inventors: Yuto INAGAKI, Takayuki SUZUKI, Guo Xiang HU, Weimin HAO