Patents by Inventor Yingchun Guan

Yingchun Guan 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: 20240414420
    Abstract: An electronic apparatus includes a noise generation source that generates electromagnetic noise and a housing. The housing includes first and second housing components defining an accommodation space R for accommodating the noise generation source. The first housing component includes a first fixing part and at least two ridge parts extending in directions away from the first fixing part. The second housing component includes a second fixing part fixed to the first fixing part, and at least two grooves extending in directions away from the second fixing part and into which the two ridge parts enter. The ridge parts and the grooves each have a protrusion amount and a depth that make the resonance frequency of the housing different from the frequency of the electromagnetic noise.
    Type: Application
    Filed: July 20, 2022
    Publication date: December 12, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yingchun GUAN, Takao TAKESHITA, Shinkuro FUJINO, Masami SAITO
  • Publication number: 20240276086
    Abstract: A vehicular camera according to an aspect of an embodiment includes a substrate, a housing, and a conductive member. An imaging element is mounted on the substrate on. The housing has a first housing and a second housing made of metal. The housing accommodates the substrate in a space formed by the first housing and the second housing. The conductive member is disposed at a joint portion between the first housing and the second housing, and has conductivity. Any one or both of the first housing and the second housing have an insulating layer on a surface thereof.
    Type: Application
    Filed: April 23, 2024
    Publication date: August 15, 2024
    Inventors: Takao TAKESHITA, Yingchun GUAN, Yoshihiro UENO, Shinkuro FUJINO, Masami FUKUHARA
  • Patent number: 11738407
    Abstract: The present disclosure relates to a high-precision and high-efficiency laser polishing method oriented to a large-size ultra-thin mask plate, and belongs to the technical field of advanced laser manufacturing. A high-precision and high-efficiency laser polishing technology is applied to the surface smoothness improvement of the large-size ultra-thin mask plate. The high-precision and high-efficiency laser polishing method specifically comprises the four following steps: step one, selecting and placing an ultra-thin invar alloy mask plate on a five-axis machining platform; step two, adopting a nanosecond continuous laser, and setting a laser incident angle; step three, setting N laser polishing areas; and step four, performing laser polishing continuous splicing. Compared with the prior art, the surface smoothness of the mask plate is improved, the polishing efficiency is high, the precision is high, and the influence on the geometrical characteristic size of the appearance of an original mask plate is low.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: August 29, 2023
    Assignees: BEIHANG UNIVERSITY, TSINGHUA UNIVERSITY
    Inventors: Yingchun Guan, Zhen Zhang, Huaming Wang, Yuhang Li
  • Publication number: 20220080542
    Abstract: The present disclosure relates to laser machining equipment for grinding semiconductor wafers, and belongs to the field of laser machining equipment. The laser machining equipment mainly comprises a special fixture, laser measuring meters, a laser emission module, an X-axis movement system, a Y-axis movement system, a Z-axis movement system, a liftable laser machining workbench, data transmission cables, an industrial personal computer and a human-computer interface.
    Type: Application
    Filed: July 21, 2021
    Publication date: March 17, 2022
    Inventors: Yingchun GUAN, Zhen ZHANG, Huaming WANG, Xinxin LI
  • Publication number: 20220063022
    Abstract: The present disclosure relates to a high-precision and high-efficiency laser polishing method oriented to a large-size ultra-thin mask plate, and belongs to the technical field of advanced laser manufacturing. A high-precision and high-efficiency laser polishing technology is applied to the surface smoothness improvement of the large-size ultra-thin mask plate. The high-precision and high-efficiency laser polishing method specifically comprises the four following steps: step one, selecting and placing an ultra-thin invar alloy mask plate on a five-axis machining platform; step two, adopting a nanosecond continuous laser, and setting a laser incident angle; step three, setting N laser polishing areas; and step four, performing laser polishing continuous splicing. Compared with the prior art, the surface smoothness of the mask plate is improved, the polishing efficiency is high, the precision is high, and the influence on the geometrical characteristic size of the appearance of an original mask plate is low.
    Type: Application
    Filed: July 26, 2021
    Publication date: March 3, 2022
    Inventors: Yingchun GUAN, Zhen ZHANG, Huaming WANG, Yuhang LI
  • Patent number: 11213919
    Abstract: A method of preparing antimicrobial surface on medical devices: first, producing multi-functional surface with bacterial anti-adhesion and self-cleaning functions through single-stop ultrafast laser fabrication approach for development of micro/nano patterns, then producing bactericidal thin film through depositing metal nanoparticles on those micro/nano patterned surfaces. The combination of bacterial anti-adhesion and bactericidal film can inhibit initial bacterial adhesion and release heavy metal ions to kill the bacteria simultaneously. Meanwhile, the multi-functional surface with self-cleaning function can prevent the killed bacteria from accumulating at the substrate surface, thereby obtaining long-lasting antibacterial effect.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: January 4, 2022
    Assignee: Beihang University
    Inventors: Yingchun Guan, Libin Lu, Jiaru Zhang, Zhen Zhang, Huaming Wang
  • Publication number: 20200009687
    Abstract: A method of preparing antimicrobial surface on medical devices: first, producing multi-functional surface with bacterial anti-adhesion and self-cleaning functions through single-stop ultrafast laser fabrication approach for development of micro/nano patterns, then producing bactericidal thin film through depositing metal nanoparticles on those micro/nano patterned surfaces. The combination of bacterial anti-adhesion and bactericidal film can inhibit initial bacterial adhesion and release heavy metal ions to kill the bacteria simultaneously. Meanwhile, the multi-functional surface with self-cleaning function can prevent the killed bacteria from accumulating at the substrate surface, thereby obtaining long-lasting antibacterial effect.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: Yingchun Guan, Libin Lu, Jiaru Zhang, Zhen Zhang, Huaming Wang
  • Publication number: 20190262947
    Abstract: The present invention disclosed a method for fabrication of fluorescence-Raman dual enhanced modal biometal substrate. The method comprises the steps of grinding surface of the substrate with different types of sandpapers to remove an oxide layer and smooth the surface of the substrate; wherein a roughness of the surface is less than 0.1 ?m; cleaning the grinded substrate in an ultrasonic bath to remove any impurity; placing the specimen on the stage of an ultrashort laser system; processing the specimen at a certain laser processing parameters by a galvanometer; finally, three-dimensional micro-nano structure is fabricated on the specimen. The technique of the present invention is promising for large-scale commercial application because it is simple and economical, while the enhanced Raman and fluorescence signal is stable and high reproducibility.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 29, 2019
    Inventors: Yingchun Guan, Jiaru Zhang, Libin Lu, Huaming Wang