Patents by Inventor Zhenghua Liu

Zhenghua Liu 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).

  • Patent number: 11946088
    Abstract: The disclosure discloses a method for processing oil crops with rhodotorula, and belongs to the technical field of fermentation. The method includes the step of inoculating the rhodotorula (such as Rhodotorula mucilaginosa, Sporidiobolus salmonicolor and Rhodotorula glutinis) that can produce carotenoid into a fermentation medium that contains oil-rich oil crops for solid state fermentation to obtain oil and oil crop meal rich in carotenoid. The carotenoid as a fermentative metabolite of the rhodotorula has bioactivities of resisting oxidation, preventing vascular sclerosis, enhancing immunity and preventing cancers. Contents of carotenoid in the oil and oil crop meal acquired by the method can be up to 9.071 ?g/g and 8.062 ?g/g correspondingly.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 2, 2024
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Yuanfa Liu, Zhongyang Ding, Yunzhi Jiang, Liting Zhao, Mengmeng Xu, Qi Zhang, Zhenghua Gu, Guiyang Shi
  • Patent number: 11925343
    Abstract: A traction apparatus, comprising a clip portion (2) and a traction portion (1), the traction portion containing a closed traction structure (11); the closed traction structure being made from an elastic material; the clip portion comprising a main clip body (23, 25) and a clip arm (24, 26); the main clip body being capable of passing through a biopsy channel (4) of an endoscope (3), the clip arm being capable of clip the closed traction structure. Also disclosed is a traction ring used for the traction apparatus, the traction ring being a single closed traction structure or being formed by connecting several closed traction structures, the traction ring being made from an elastic material.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 12, 2024
    Assignees: MICRO-TECH (NANJING) CO., LTD., BEIJING FRIENDSHIP HOSPITAL, CAPITAL MEDICAL UNIVERSITY
    Inventors: Ming Ji, Jianjun Shuang, Zhenghua Shen, Changging Li, Derong Leng, Chunjun Liu, Jie Hu
  • Patent number: 10504242
    Abstract: A dual fisheye lens calibration method includes: generating a first pair of fisheye images of two calibration chessboards located directly in front of two fisheye lenses and one or more random feature point calibration boards located in overlapping regions of the two fisheye lenses; adjusting positions of optical centers of the two fisheye lenses based on differences between projection coordinates of corner points on fisheye images and coordinates of images of the corner points on the first pair of fisheye images, to obtain optimal optical centers; generating a second pair of fisheye images of the calibration chessboards and random feature point calibration boards, based on the optimal optical points; generating a panoramic image based on the second pair of fisheye images; and adjusting distortion polynomial coefficients and extrinsic parameters of the two fisheye lenses based on a difference between panoramic-image coordinates of a matching feature point pair.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: December 10, 2019
    Assignee: SHANGHAI XIAOYI TECHNOLOGY CO., LTD.
    Inventors: Junzhou Mou, Zhenghua Liu
  • Publication number: 20190236805
    Abstract: A dual fisheye lens calibration method includes: generating a first pair of fisheye images of two calibration chessboards located directly in front of two fisheye lenses and one or more random feature point calibration boards located in overlapping regions of the two fisheye lenses; adjusting positions of optical centers of the two fisheye lenses based on differences between projection coordinates of corner points on fisheye images and coordinates of images of the corner points on the first pair of fisheye images, to obtain optimal optical centers; generating a second pair of fisheye images of the calibration chessboards and random feature point calibration boards, based on the optimal optical points; generating a panoramic image based on the second pair of fisheye images; and adjusting distortion polynomial coefficients and extrinsic parameters of the two fisheye lenses based on a difference between panoramic-image coordinates of a matching feature point pair.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Applicant: Shanghai Xiaoyi Technology Co., Ltd.
    Inventors: Junzhou MOU, Zhenghua LIU
  • Publication number: 20170142930
    Abstract: The present invention relates to an automatic feeder and a feeding pipe thereof.
    Type: Application
    Filed: March 9, 2016
    Publication date: May 25, 2017
    Inventors: Ruisen Huang, Jiansheng Cao, Li Yu, Ping Zou, Kaiyun Wang, Dinggan Chen, Hong Zhou, Rikai Zhong, Tuyu Luo, Zhenghua Liu, Rongbo Zhang, Feng Bian, Weichao Zhong, Huiyong Yang, Wei Geng