Patents by Inventor Liyun Liu

Liyun 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).

  • Publication number: 20210363529
    Abstract: The invention belongs to the field of genetic engineering technology and application thereof, and in order to solve the problems of lack of high efficient TMV-resistant RNAi nano-preparation at present, complicated preparation process of medicament, poor stability and delivery efficiency of dsRNA, the invention provides an RNAi nano-preparation, preparation method thereof and application thereof in TMV prevention and control. The RNAi nano-preparation is prepared from dsRNA and chitosan nano materials, wherein, dsRNA is a highly TMV-resistant RdRP3 gene with a length of 313 bp obtained from screening, with nucleotide sequence shown in SEQ ID NO.1, and the volume ratio of the chitosan to 1 ?g/?l dsRNA is 10:(1-6).
    Type: Application
    Filed: August 20, 2020
    Publication date: November 25, 2021
    Inventors: Jinguang YANG, Fenglong WANG, Xiang XU, Ying LI, Liyun SONG, Lili SHEN, Qiang LEI, Changchun FENG, Bin LI, Yong WANG, Dongyang LIU, Lianqiang JIANG
  • Publication number: 20210311233
    Abstract: The present disclosure relates to a lighting device for automatically switching between a visible light source and an infrared light source. The lighting device may include a light source, an infrared filter, and a driving module for driving the infrared filter.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Liyun ZHENG, Hui ZHAN, Yanhui LIU, Yubing ZHAO
  • Publication number: 20210196373
    Abstract: The application relates to a reaming type non-implanted atrial shunt device comprising a catheter component (2), a radio frequency component (1) disposed on an end of the catheter component (2) extending into a human body, and a radio frequency ablation instrument (4) disposed on the other end of the catheter component (2) and connected with the radio frequency component (1), wherein after the radio frequency component (1) extends into a puncture hole, the radio frequency ablation instrument (4) releases a radio frequency energy, and the radio frequency component (1) ablates a wall of the puncture hole. The radio frequency component (1) is delivered to the position of the puncture hole. When the radio frequency ablation instrument (4) releases energy, the radio frequency component (1) causes the hole wall tissue to generate heat and ablate the atrial septum at a target position to form a hole with fixed size, thereby achieving the purpose of creating a hole.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Inventors: Tao HE, Yishou DING, Xibo ZHANG, Xiangyi LI, Jie CAI, Liyun LIU, Ping HE, Hao CHEN, Yuxin ZHANG, Zhongjie PU
  • Patent number: 10819019
    Abstract: A mobile communication device and an antenna thereof are provided. The antenna includes a microphone and an antenna feeder, both arranged on a main board of the mobile communication device. The microphone includes a body portion, a first ground terminal and a second ground terminal. The first ground terminal surrounds a sidewall of the body portion, the first ground terminal and the second ground terminal are electrically connected, and the second ground terminal is electrically connected with the body portion. The main board is further arranged with a radio frequency module and a main board ground terminal. The radio frequency module is electrically connected with the first ground terminal through the antenna feeder, and the main board ground terminal and the second ground terminal are electrically connected.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 27, 2020
    Assignee: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.
    Inventors: Lei Chen, Liyun Liu
  • Publication number: 20200321696
    Abstract: The present disclosure discloses an antenna device and a terminal. The antenna device includes a first branch, a second branch, a third branch, a public branch, and a feed point. The first branch, the second branch, the third branch, a public branch and the feed point constitute a diversity antenna cooperatively. The first branch is configured as an earpiece metal mesh. The feed point is electrically connected to the first branch. The second branch and the third branch are electrically connected to an end of the public branch, respectively. An another end of the public branch is electrically connected to the feed point.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Inventors: Lei Chen, Liyun Liu
  • Publication number: 20200321687
    Abstract: A printed circuit board and a terminal are provided. The printed circuit board includes a feedpoint arrangement region, a ground point arrangement region, and a ground region. The ground region is adjacent to and connected to the ground point arrangement region and is configured to be a ground plate of the antenna. A radiation reduction structure is arranged in the ground region and defines an opening. Therefore, an edge of the printed circuit board is disrupted by the opening.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Inventors: LEI CHEN, Liyun Liu
  • Publication number: 20200176853
    Abstract: A mobile communication device and an antenna thereof are provided. The antenna includes a microphone and an antenna feeder, both arranged on a main board of the mobile communication device. The microphone includes a body portion, a first ground terminal and a second ground terminal. The first ground terminal surrounds a sidewall of the body portion, the first ground terminal and the second ground terminal are electrically connected, and the second ground terminal is electrically connected with the body portion. The main board is further arranged with a radio frequency module and a main board ground terminal. The radio frequency module is electrically connected with the first ground terminal through the antenna feeder, and the main board ground terminal and the second ground terminal are electrically connected.
    Type: Application
    Filed: July 24, 2018
    Publication date: June 4, 2020
    Inventors: LEI CHEN, LIYUN LIU
  • Patent number: 8609137
    Abstract: The present invention discloses a novel soft capsule of butylphthalide and a process for preparing the same. The soft capsule of butylphthalide is composed of a capsule wall material and a drug-containing oil, wherein the drug-containing oil is essentially composed of butylphthalide and a vegetable oil as the diluent in a weight ratio of about 1:0˜10. The capsule wall material is composed of a capsule wall matrix, a plasticizer and water in a weight ratio of 1:0.2˜0.4:0.8˜1.3. The soft capsule of butylphthalide described in the present invention can mask the strong and special flavor of butylphthalide, and overcome the difficulties associated with formulating oily active ingredient into other oral formulation. The disintegration time of the soft capsule satisfies the requirement of Pharmacopoeia of P.R. China.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: December 17, 2013
    Assignees: CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., CSPC NBP Pharmaceutical Co., Ltd.
    Inventors: Jianqing Li, Min Bai, Wenmin Guo, Surui Chen, Liyun Liu, Guirong Zhou
  • Publication number: 20120052117
    Abstract: The present invention discloses a novel soft capsule of butylphthalide and a process for preparing the same. The soft capsule of butylphthalide is composed of a capsule wall material and a drug-containing oil, wherein the drug-containing oil is essentially composed of butylphthalide and a vegetable oil as the diluent in a weight ratio of about 1:0˜10. The capsule wall material is composed of a capsule wall matrix, a plasticizer and water in a weight ratio of 1:0.2˜0.4:0.8˜1.3. The soft capsule of butylphthalide described in the present invention can mask the strong and special flavour of butylphthalide, and overcome the difficulties associated with formulating oily active ingredient into other oral formulation. The disintegration time of the soft capsule satisfies the requirement of Pharmacopoeia of P.R. China.
    Type: Application
    Filed: April 22, 2011
    Publication date: March 1, 2012
    Inventors: Jianqing Li, Min Bai, Wenmin Guo, Surui Chen, Liyun Liu, Guirong Zhou
  • Publication number: 20080305163
    Abstract: The present invention discloses a novel dosage form of butylphthalide soft capsule and its preparation procedure. Butylphthalide soft capsule is composed of a coating material and a drug-containing oil. The drug-containing oil is basically composed of butylphthalide and diluent—vegetable oil, wherein the weight ratio of butylphthalide to oil ranges from 1:0˜10. The coating material is composed of gelatin, plasticizer and water, wherein the weight ratio of gelatin to plasticizer to water is in the range of 1:0.2˜0.4:0.8˜0.3. The butylphthalide soft capsule described in this invention can mask the strong and specific flavor of butylphthalide, and overcome the difficulties associated with formulating oily active agents into other oral preparations. The disintegration time of the soft capsule complies with the requirement of Pharmacopoeia of P.R. China.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 11, 2008
    Inventors: Jianqing Li, Min Bai, Wenmin Guo, Surui Chen, Liyun Liu, Guirong Zhou
  • Publication number: 20080020034
    Abstract: The present invention discloses a novel dosage form of butylphthalide soft capsule and its preparation procedure. Butylphthalide soft capsule is composed of a coating material and a drug-containing oil. The drug-containing oil is basically composed of butylphthalide and diluent—vegetable oil, wherein the weight ratio of butylphthalide to oil ranges from 1:0-10. The coating material is composed of gelatin, plasticizer and water, wherein the weight ratio of gelatin to plasticizer to water is in the range of 1:0.2{tilde over ( )}0.4:0.8{tilde over ( )}0.3. The butylphthalide soft capsule described in this invention can mask the strong and specific flavor of butylphthalide, and overcome the difficulties associated with formulating oily active agents into other oral preparations. The disintegration time of the soft capsule complies with the requirement of Pharmacopoeia of P.R. China.
    Type: Application
    Filed: December 3, 2004
    Publication date: January 24, 2008
    Inventors: Jianqing Li, Min Bai, Wenmin Guo, Surui Chen, Liyun Liu, Guirong Zhou
  • Publication number: 20070134316
    Abstract: The present invention discloses a novel soft capsule of butylphthalide and a process for preparing the same. The soft capsule of butylphthalide is composed of a capsule wall material and a drug-containing oil, wherein the drug-containing oil is essentially composed of butylphthalide and a vegetable oil as the diluent in a weight ratio of about 1:0˜10. The capsule wall material is composed of a capsule wall matrix, a plasticizer and water in a weight ratio of 1:0.2˜0.4:0.8˜1.3. The soft capsule of butylphthalide described in the present invention can mask the strong and special flavour of butylphthalide, and overcome the difficulties associated with formulating oily active ingredient into other oral formulation. The disintegration time of the soft capsule satisfies the requirement of Pharmacopoeia of P.R. China.
    Type: Application
    Filed: June 2, 2006
    Publication date: June 14, 2007
    Inventors: Jianqing Li, Min Bai, Wenmin Guo, Surui Chen, Liyun Liu, Guirong Zhou