Patents by Inventor Hanxin Rao

Hanxin Rao 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).

  • Gas-filled LED bulb manufactured by SMT
    Patent number: 9863624
    Abstract: A gas-filled LED bulb manufactured by SMT includes a shell, a lamp holder, a holder, and a filament assembly. The shell defines a chamber therein. The lamp holder is positioned outside the chamber and assembled to the shell. The holder is secured in the chamber and fixed to the shell. The filament assembly includes a plurality of LEDs packaged in a SMD or CSP and a bendable circuit board. The LED is mounted on the circuit board by SMT and arranged on the circuit board sequentially, the circuit board has an elongated shape, and opposite ends of the circuit board are fixed to the holder.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: January 9, 2018
    Assignee: Shenzhen Eastfield Lighting Co., Ltd.
    Inventors: Hanxin Rao, Guang Li
  • Gas-filled LED bulb
    Patent number: 9822933
    Abstract: A gas-filled LED bulb includes a shell, a holder, and a filament assembly. The shell defines a chamber therein, and the chamber is filled with thermally conductive gas. The holder is secured in the chamber. The filament assembly is positioned in the chamber. The filament assembly includes a plurality of LEDs in a SMD or a CSP and a plurality of metallic wires. The LEDs and the metallic wires are alternatively connected to each other to form a chain. Opposite ends of the filament assembly are fixed to the holder.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 21, 2017
    Assignee: SHENZHEN EASTFIELD LIGHTING CO., LTD.
    Inventors: Hanxin Rao, Guang Li
  • GAS-FILLED LED BULB MANUFACTURED BY SMT
    Publication number: 20170038050
    Abstract: A gas-filled LED bulb manufactured by SMT includes a shell, a lamp holder, a holder, and a filament assembly. The shell defines a chamber therein. The lamp holder is positioned outside the chamber and assembled to the shell. The holder is secured in the chamber and fixed to the shell. The filament assembly includes a plurality of LEDs packaged in a SMD or CSP and a bendable circuit board. The LED is mounted on the circuit board by SMT and arranged on the circuit board sequentially, the circuit board has an elongated shape, and opposite ends of the circuit board are fixed to the holder.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 9, 2017
    Inventors: Hanxin Rao, Guang Li
  • GAS-FILLED LED BULB
    Publication number: 20170038010
    Abstract: A gas-filled LED bulb includes a shell, a holder, and a filament assembly. The shell defines a chamber therein, and the chamber is filled with thermally conductive gas. The holder is secured in the chamber. The filament assembly is positioned in the chamber. The filament assembly includes a plurality of LEDs in a SMD or a CSP and a plurality of metallic wires. The LEDs and the metallic wires are alternatively connected to each other to form a chain. Opposite ends of the filament assembly are fixed to the holder.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 9, 2017
    Inventors: Hanxin Rao, Guang Li