Patents by Inventor Lifang Yuan

Lifang 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).

  • Power module and heat sink system
    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
  • Reduced stress boss geometry for a gas turbine engine
    Patent number: 11208955
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 28, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • REDUCED STRESS BOSS GEOMETRY FOR A GAS TURBINE ENGINE
    Publication number: 20200011248
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Applicant: United Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • Reduced stress boss geometry for a gas turbine engine
    Patent number: 10458333
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 29, 2019
    Assignee: United Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • REDUCED STRESS BOSS GEOMETRY FOR A GAS TURBINE ENGINE
    Publication number: 20160356222
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Application
    Filed: February 19, 2015
    Publication date: December 8, 2016
    Applicant: United Technologies Corporation
    Inventors: Chris J. NIGGEMEIER, Lifang YUAN
  • General purpose pneumatic power module
    Patent number: 8127656
    Abstract: A pneumatic launch system includes a manifold that stores pressurized gas and releases the pressurized gas on command to sequentially open the store retention hooks and eject the store. The manifold includes an eject valve whose main chamber is part of the high pressure gas storage. A hook release valve is controlled by the eject valve for sequential operation of hook opening and store ejection. A manually selectable pitch valve provides pitch setting to proportion the gas delivered to the ejector cylinders. The manifold minimizes flow path restrictions and provides a fast actuation response with minimum variability to unlock the hooks and quickly eject the store.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: March 6, 2012
    Assignee: Exelis, Inc.
    Inventors: Lifang Yuan, Nicolas Desimini