Patents by Inventor Dan Bao

Dan Bao 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: 11059773
    Abstract: The present invention discloses a type-B crystal form of fenolamine, a preparation method thereof, and a composition and use thereof, more particularly a type-B crystal form of the fenolamine compound (chemical name: trans-2-(2,5-dimethoxyphenyl)-3-(4-hydroxy-3-methoxyphenyl)-N-(4-hydroxyphenylethyl)acrylamide, a preparation method thereof, and a composition and use thereof. Specifically, the present invention discloses the presence of a solid of a type-B fenolamine crystal form in solid state; a method for preparing the solid of type-B crystal form; and use of the solid of the type-B fenolamine crystal form as a pharmaceutical active ingredient in the manufacture of a medicament for prevention and treatment of Parkinson's disease (PD), improvement of learning and memory disorder, and treatment of memory loss and Alzheimer's disease (AD).
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 13, 2021
    Assignees: INSTITUTE OF MATARIA MEDICA, CHINESE ACADEMY OF MEDICAL SCIENCES, SHIJIAZHUANG YILING PHARMACEUTICAL CO., LTD.
    Inventors: Yang Lv, Shiying Yang, Gengtao Liu, Dan Zhang, Xiuqi Bao, Ping Xie
  • Publication number: 20210024498
    Abstract: The present invention discloses a tetrahydropyrrole compound, a preparation method therefor, a pharmaceutical composition containing the same, and a use thereof. The tetrahydropyrrole compound of the present invention is represented by general formula (I). The tetrahydropyrrole compound of the present invention has better inhibitory effects on the positive symptoms of schizophrenia, and the potency thereof is equivalent to or slightly stronger than that of the positive drug olanzapine. In addition, the compound of the present invention has dual inhibitory effects on D2 receptors and DAT receptors, and is effective for treating schizophrenia and improving negative symptoms and cognitive functions, while also reducing vertebral side effects and prolactin secretion.
    Type: Application
    Filed: December 26, 2018
    Publication date: January 28, 2021
    Inventors: Zhu DANG, Christine Jue CAI, Zhen LUO, Liugang WANG, Dan BAO
  • Patent number: 9307904
    Abstract: An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: April 12, 2016
    Assignee: WaveTec Vision Systems, Inc.
    Inventors: Thomas D. Padrick, Jack T. Holladay, Dan Bao Tran, Aric K. Plumley, Richard J. Michaels, Jeff Padgett
  • Patent number: 9231620
    Abstract: An iterative decoding device includes a decoder, a dual mode determination unit and a dual mode scaling unit. The decoder is utilized for receiving a set of soft information (SI) and iteratively decoding the set of SI and updating the set of SI accordingly to generate a set of updated SI. The dual mode determination unit is coupled to the decoder for generating a determination result according to the set of updated SI. The dual mode scaling unit is coupled to the dual mode determination unit and the decoder for scaling the set of updated SI according to the determination result to generate a set of scaled SI acting as an input of the decoder for next iteration.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: January 5, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Dan Bao, Dawei Deng, Song Qian, Bo Shen
  • Patent number: 8924821
    Abstract: A decoding method for low density parity check (LDPC) and an electric device using the decoding method are provided. The decoding method includes: receiving a message and executing an iteration decoding to the message; obtaining first belief values of the message in an (i?1)th iteration; obtaining a first energy summation of the first belief values; obtaining second belief values of the message in an ith iteration; obtaining a second energy summation of the second belief values; determining whether the second energy summation is smaller than the first energy summation and whether a difference between the first energy summation and the second energy summation is larger than a first threshold; if yes, generating a decoding result according to the first belief values. Therefore, a bit error rate of the decoding is decreased.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 30, 2014
    Assignees: Novatek (Shanghai) Co., Ltd., Novatek Microelectronics Corp.
    Inventors: Da-Wei Deng, Dan Bao, Zheng Li, Song Qian
  • Publication number: 20140173373
    Abstract: A decoding method for low density parity check (LDPC) and an electric device using the decoding method are provided. The decoding method includes: receiving a message and executing an iteration decoding to the message; obtaining first belief values of the message in an (i?1)th iteration; obtaining a first energy summation of the first belief values; obtaining second belief values of the message in an ith iteration; obtaining a second energy summation of the second belief values; determining whether the second energy summation is smaller than the first energy summation and whether a difference between the first energy summation and the second energy summation is larger than a first threshold; if yes, generating a decoding result according to the first belief values. Therefore, a bit error rate of the decoding is decreased.
    Type: Application
    Filed: February 21, 2013
    Publication date: June 19, 2014
    Applicants: NOVATEK MICROELECTRONICS CORP., NOVATEK (SHANGHAI) CO., LTD.
    Inventors: Da-Wei Deng, Dan Bao, Zheng Li, Song Qian
  • Publication number: 20140132922
    Abstract: An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.
    Type: Application
    Filed: October 4, 2013
    Publication date: May 15, 2014
    Applicant: WaveTec Vision Systems, Inc.
    Inventors: Thomas D. Padrick, Jack T. Holladay, Dan Bao Tran, Aric K. Plumley, Richard J. Michaels, Jeff Padgett
  • Publication number: 20140013190
    Abstract: An iterative decoding device includes a decoder, a dual mode determination unit and a dual mode scaling unit. The decoder is utilized for receiving a set of soft information (SI) and iteratively decoding the set of SI and updating the set of SI accordingly to generate a set of updated SI. The dual mode determination unit is coupled to the decoder for generating a determination result according to the set of updated SI. The dual mode scaling unit is coupled to the dual mode determination unit and the decoder for scaling the set of updated SI according to the determination result to generate a set of scaled SI acting as an input of the decoder for next iteration.
    Type: Application
    Filed: October 8, 2012
    Publication date: January 9, 2014
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Dan Bao, Dawei Deng, Song Qian, Bo Shen
  • Patent number: 8550624
    Abstract: An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 8, 2013
    Assignee: Wavetec Vision Systems, Inc.
    Inventors: Thomas D. Padrick, Jack T. Holladay, Dan Bao Tran, Aric K. Plumley, Richard J. Michaels, Jeff Padgett
  • Publication number: 20100152847
    Abstract: An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.
    Type: Application
    Filed: November 6, 2009
    Publication date: June 17, 2010
    Applicant: WAVETEC VISION SYSTEMS INC.
    Inventors: Thomas D. Padrick, Jack T. Holladay, Dan Bao Tran, Aric K. Plumley, Richard J. Michaels, Jeff Padgett