Patents by Inventor Jiazhi Zhang

Jiazhi Zhang 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: 20250114868
    Abstract: A high-strength steel laser welding filler, comprising the following components in percentages by weight: 0.05-0.5% of C, 0.1-2% of Cu, 0.2-2.5% of Cr, 0.5-3.5% of Mo, and 2-10% of Ni, with the balance being Fe and inevitable impurities. The filler is used for laser filler welding of hot-formed steel which has an aluminum-containing coating on the surface thereof, can effectively reduce the adverse effect of the aluminum-containing coating on the surface on the strength of a joint, and enables the strength and plasticity of the welded joint, after hot stamping, to reach 90% or more of those of a base material.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 10, 2025
    Applicant: SHANGHAI INSTITUTE OF OPTICS AND FINE MECHANICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Shanglu YANG, Wu TAO, Wei XU, Jiazhi ZHANG
  • Publication number: 20200135059
    Abstract: The present disclosure provides a laser-markable article with customized watermarks and a preparation method thereof. The laser-markable article with customized watermarks comprises a surface layer (1) containing a first coloring agent, a bottom layer (2) containing a second coloring agent, an adhesive layer (3), and an optional release layer (4) arranged consecutively in a stack, and further comprises customized watermarks (5?,5?) arranged in the surface layer (1), wherein the customized watermarks (5?,5?) are comprised of a plurality of watermark units spaced apart from one another and regularly distributed in the surface layer (1), and each watermark unit is comprised of a laser-etched pattern with an etch depth of 2.5 to 25 micrometers. The laser-markable article with customized watermarks have good abrasive resistance, durability, and appearance effects.
    Type: Application
    Filed: May 30, 2018
    Publication date: April 30, 2020
    Inventor: Jiazhi Zhang
  • Patent number: D752744
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 29, 2016
    Assignee: ZHEJIANG YOUYI MEDICAL APPARATUS CO., LTD.
    Inventors: Heguo Luo, Fushang Xue, Weidong Wang, Yuesheng Li, Jiazhi Zhang, Fubin Zhu, Benquan Yang, Aihua Chen