Patents by Inventor Xiaofang Zhang

Xiaofang 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: 20210263285
    Abstract: The disclosure provides an optical imaging system, sequentially including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side along an optical axis, wherein an image-side surface of the seventh lens is a concave surface; the optical imaging system meets the following conditional expressions: TTL/ImgH<1.3, f/EPD<1.8, ImgH>6 mm and 0<R15/f8<0.8, wherein TTL is a distance from an object-side surface of the first lens to an imaging surface of the optical imaging system on the optical axis; ImgH is a half of diagonal length of an effective pixel region on the imaging surface; f is a total effective focal length of the optical imaging system; EPD is an entrance pupil diameter of the optical imaging system.
    Type: Application
    Filed: January 20, 2021
    Publication date: August 26, 2021
    Inventors: Xiaofang WANG, Kaiyuan ZHANG, Fujian DAI, Liefeng ZHAO
  • Patent number: 11083806
    Abstract: Provided are radiopaque compositions comprising one or more of yttrium (Y), strontium (Sr), gallium (Ga), and silicon, or oxides and salts thereof. The composition can comprise a combination of Y2O3, SrO, Ga2O3, and SiO2, and optionally MnO2, and TiO2. Other compositions comprise SrO, Ga2O3, TiO2, MnO2, and SiO2. The composition can be a particulate material. The compositions are useful for radioembolization to treat tumors.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: August 10, 2021
    Assignee: ABK Biomedical Incorporated
    Inventors: Daniel Boyd, Robert Joseph Abraham, Xiaofang Zhang, Sharon Legere, James Clarke
  • Patent number: 10991535
    Abstract: The present disclosure discloses a miniature circuit breaker operating mechanism and a miniature circuit breaker. The operating mechanism includes an operating handle and a lock catch. The operating handle and the lock catch are separately rotatably connected to a circuit breaker housing. The operating mechanism further includes: a first connecting rod, which is rotatably connected with the circuit breaker housing, and the rotating shaft of the first connecting rod and the rotating shaft of the lock catch shares the axis or on the same axis; a moving contact is arranged on the first connecting rod; a second connecting rod; the second connecting rod is connected with the operating handle, and the second connecting rod, the lock catch and the first connecting rod cooperate with a linkage structure.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: April 27, 2021
    Assignee: Xiamen Hongfa Electrical Safety & Controls Co., Ltd.
    Inventors: Xiaofang Zhang, Hang Zou, Yanhai Zhou, Yun Ma
  • Patent number: 10874609
    Abstract: Disclosed is a ?-cyclodextrin-based star-shaped polymer and a preparation method therefor, and an integrated unimolecular micelle system for diagnosis and treatment based on the star-shaped polymer and the use thereof. The polymer has a structure represented by the following formula (I): wherein x=4-15, y=3-20, and z=10-30.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 29, 2020
    Inventors: Lijuan Zhang, Wenjing Lin, Na Yao, Xiaofang Zhang
  • Publication number: 20200203109
    Abstract: The present disclosure discloses a miniature circuit breaker operating mechanism and a miniature circuit breaker. The operating mechanism includes an operating handle and a lock catch. The operating handle and the lock catch are separately rotatably connected to a circuit breaker housing. The operating mechanism further includes: a first connecting rod, which is rotatably connected with the circuit breaker housing, and the rotating shaft of the first connecting rod and the rotating shaft of the lock catch shares the axis or on the same axis; a moving contact is arranged on the first connecting rod; a second connecting rod; the second connecting rod is connected with the operating handle, and the second connecting rod, the lock catch and the first connecting rod cooperate with a linkage structure.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 25, 2020
    Applicant: Xiamen Hongfa Electrical Safety & Controls Co., Ltd.
    Inventors: Xiaofang Zhang, Hang Zou, Yanhai Zhou, Yun Ma
  • Publication number: 20190380959
    Abstract: Disclosed is a ?-cyclodextrin-based star-shaped polymer and a preparation method therefor, and an integrated unimolecular micelle system for diagnosis and treatment based on the star-shaped polymer and the use thereof. The polymer has a structure represented by the following formula (I): wherein x=4-15, y=3-20, and z=10-30.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 19, 2019
    Inventors: Lijuan Zhang, Wenjing Lin, Na Yao, Xiaofang Zhang
  • Publication number: 20170360968
    Abstract: Provided are radiopaque compositions comprising one or more of yttrium (Y), strontium (Sr), gallium (Ga), and silicon, or oxides and salts thereof. The composition can comprise a combination of Y2O3, SrCO3, Ga2O3, and SiO2, and optionally MnO2, and TiO2. Other compositions comprise SrCO3, Ga2O3, TiO2, MnO2, and SiO2. The composition can be a particulate material. The compositions are useful for radioembolization to treat tumors.
    Type: Application
    Filed: November 26, 2015
    Publication date: December 21, 2017
    Inventors: Daniel BOYD, Robert Joseph ABRAHAM, Xiaofang ZHANG, Sharon KEHOE, James CLARKE
  • Patent number: 9444208
    Abstract: A compatible apparatus for an SIM card and a related terminal are disclosed. The compatible apparatus includes: a second card slot and a first card slot rotatably connected to the second card slot; wherein a card insertion area with parallel metal elastic pins is arranged in the second card slot; a first SIM card is inserted into fillets on both sides of the first card slot, and when the first card slot is snapped on the second card slot, the first SIM card contacts with the metal elastic pins; and an elastic stop apparatus matched with a second SIM card is arranged outside of the card insertion area in the second card slot, the elastic stop apparatus is for arranging the second SIM card, and when the first card slot is snapped on the second card slot, the second SIM card contacts with the metal elastic pins.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 13, 2016
    Assignee: ZTE Corporation
    Inventor: Xiaofang Zhang
  • Publication number: 20150270670
    Abstract: A compatible apparatus for an SIM card and a related terminal are disclosed. The compatible apparatus includes: a second card slot and a first card slot rotatably connected to the second card slot; wherein a card insertion area with parallel metal elastic pins is arranged in the second card slot; a first SIM card is inserted into fillets on both sides of the first card slot, and when the first card slot is snapped on the second card slot, the first SIM card contacts with the metal elastic pins; and an elastic stop apparatus matched with a second SIM card is arranged outside of the card insertion area in the second card slot, the elastic stop apparatus is for arranging the second SIM card, and when the first card slot is snapped on the second card slot, the second SIM card contacts with the metal elastic pins.
    Type: Application
    Filed: August 15, 2013
    Publication date: September 24, 2015
    Inventor: Xiaofang Zhang
  • Patent number: 8309563
    Abstract: he present invention has disclosed a compound of formula I and a pharmaceutically acceptable salt or a solvate thereof, wherein the substituents are as defined in the description. The invention has also disclosed a method for preparing the compound of formula I, the pharmaceutical compositions comprising the same and their uses in the preparation of an anti-tumor medicament.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: November 13, 2012
    Assignee: Shanghai Allist Pharmaceuticals, Inc.
    Inventors: Jianhui Guo, Meng Wang, Yong Jiang, Xiaofang Zhang
  • Patent number: 8044063
    Abstract: The present invention relates to quinazoline derivatives of the formula (I) useful as anti-tumor medicaments, or a pharmaceutically acceptable salt thereof, the definition of the substituents R1, R1?, R2, R2? are as defined in the description. It also relates to a pharmaceutical composition containing same, and a method for the preparation of quinazoline derivatives of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: October 25, 2011
    Assignee: Shanghai Allist Pharmaceuticals, Inc.
    Inventors: Jianhui Guo, Meng Wang, Yong Jiang, Xiaofang Zhang
  • Publication number: 20110245246
    Abstract: he present invention has disclosed a compound of formula I and a pharmaceutically acceptable salt or a solvate thereof, wherein the substituents are as defined in the description. The invention has also disclosed a method for preparing the compound of formula I, the pharmaceutical compositions comprising the same and their uses in the preparation of an anti-tumor medicament.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Applicant: SHANGHAI ALLIST PHARMACEUTICALS, INC.
    Inventors: Jianhui Guo, Meng Wang, Yong Jiang, Xiaofang Zhang
  • Publication number: 20080300248
    Abstract: The present invention has disclosed a compound of formula I and a pharmaceutically acceptable salt or a solvate thereof, wherein the substituents are as defined in the description. The invention has also disclosed a method for preparing the compound of formula I, the pharmaceutical compositions comprising the same and their uses in the preparation of an anti-tumor medicament.
    Type: Application
    Filed: October 20, 2006
    Publication date: December 4, 2008
    Applicant: SHANGHAI ALLIST PHARMACEUTICALS, INC.
    Inventors: Jianhui Guo, Meng Wang, Yong Jiang, Xiaofang Zhang