Patents by Inventor Guifen LIAO

Guifen LIAO 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).

  • Publication number: 20190264349
    Abstract: A method for manufacturing a crystal ingot includes the steps of forming a crystal boule, cutting the crystal boule so as to obtain a crystal ingot from the crystal boule, and subjecting the crystal ingot to an annealing treatment which includes a heating stage, a constant temperature stage and a cooling stage.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 29, 2019
    Applicant: FUJIAN JING' AN OPTOELECTRONICS CO., LTD
    Inventors: Pin-Hui HSIEH, Zhongwei HU, Wu-Ching LIN, Po-Fan LAI, Guifen LIAO