Patents by Inventor Changlin ZHAO

Changlin ZHAO 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: 10385189
    Abstract: The present invention provides a graphene composite powder form material that is suitable for industrialized application. The graphene composite powder form material is composited by graphene materials and a high-molecular compound. The high-molecular compound is uniformly coated on surfaces of the graphene material. Any adjacent graphene materials are separated by the high-molecular compound. An apparent density of the graphene composite powder form material is larger than or equal to 0.02 g/cm3. Under an external pressure, the graphene materials in the graphene composite powder form material do not re-stack, and can be easily restored to original form, which benefit the storage and transportation. Besides, the graphene composite powder form material has a good compatibility in other material systems, which greatly broadens the application fields in the downstream products and successfully solves the problem in industrial application.
    Type: Grant
    Filed: January 16, 2016
    Date of Patent: August 20, 2019
    Assignees: NINGBO MORSH TECHNOLOGY CO., LTD., NINGBO INSTITUTE OF MATERIALS TECHNOLOGY AND ENGINEERING, CHINESE ACADEMY OF SCIENCES
    Inventors: Zhaoping Liu, Xufeng Zhou, Changlin Tang, Zhihong Qing, Yongsheng Zhao
  • Publication number: 20190011674
    Abstract: An optical imaging lens includes first, second, third, fourth, fifth and sixth lens elements arranged in order from the object side to the image side. The first lens element has an image-side surface with a concave portion in a vicinity of its periphery, the third lens element has positive refractive power and an object-side surface with a convex portion in a vicinity of its periphery, the fifth lens element has negative refractive power, and the sixth lens element has an image-side surface with a concave portion in a vicinity of the optical axis.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 10, 2019
    Inventors: Shih-Han Chen, Huabin Liao, Changlin Zhao
  • Patent number: 10048467
    Abstract: An optical imaging lens includes first, second, third, fourth, fifth and sixth lens elements arranged in order from the object side to the image side. The first lens element has an image-side surface with a concave part in a vicinity of its periphery, the second lens element has an image-side surface with a concave part in a vicinity of the optical axis, the third lens element has positive refractive power, the fourth lens element has an object-side surface with a convex part in a vicinity of its periphery, the fifth lens element has an object-side surface with a concave part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis. The second lens element has negative refractive power. The sixth lens element has positive refractive power.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 14, 2018
    Assignee: Genius Electronic Optical (Xiamen) Co., Ltd.
    Inventors: Shih Han Chen, Huabin Liao, Changlin Zhao
  • Publication number: 20170102523
    Abstract: An optical imaging lens includes first, second, third, fourth, fifth and sixth lens elements arranged in order from the object side to the image side. The first lens element has an image-side surface with a concave part in a vicinity of its periphery, the second lens element has an image-side surface with a concave part in a vicinity of the optical axis, the third lens element has positive refractive power, the fourth lens element has an object-side surface with a convex part in a vicinity of its periphery, the fifth lens element has an object-side surface with a concave part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis. The second lens element has negative refractive power. The sixth lens element has positive refractive power.
    Type: Application
    Filed: April 6, 2016
    Publication date: April 13, 2017
    Inventors: SHIH HAN CHEN, HUABIN LIAO, CHANGLIN ZHAO
  • Patent number: 9568710
    Abstract: An imaging lens includes first to sixth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant lens parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 14, 2017
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Shih-Han Chen, Yita Chiang, Changlin Zhao
  • Patent number: 9541737
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises six lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least one inequality, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 10, 2017
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Shih-Han Chen, Jia-Sin Jhang, Changlin Zhao
  • Patent number: 9335518
    Abstract: An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element. The first lens element has an image-side surface with a concave part in a vicinity of its periphery, the second lens element has an image-side surface with a concave part in a vicinity of the optical axis, the third lens element has positive refractive power, the fourth lens element has an object-side surface with a convex part in a vicinity of its periphery, the fifth lens element has an object-side surface with a concave part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis, and the sixth lens element being made of plastic.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 10, 2016
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Shih-Han Chen, Huabin Liao, Changlin Zhao
  • Publication number: 20160124188
    Abstract: An imaging lens includes first to sixth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant lens parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.
    Type: Application
    Filed: February 12, 2015
    Publication date: May 5, 2016
    Inventors: Shih-Han CHEN, Yita CHIANG, Changlin ZHAO
  • Patent number: 9274318
    Abstract: An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element, the first lens element has a positive refracting power, the second lens element has a negative refracting power and an object-side surface with a concave part in a vicinity of its periphery, the third lens element has an object-side surface with a concave part in a vicinity of its periphery, and an image-side surface with a convex part in a vicinity of the optical axis, the fourth lens has an image-side surface with a convex part in a vicinity of the optical axis, the fifth lens element has object-side surface with a concave part in a vicinity of its periphery, and an image-side surface with a convex part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a convex part in a vicinity of its periphery.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 1, 2016
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Shih-Han Chen, Yanbin Chen, Changlin Zhao
  • Publication number: 20160041368
    Abstract: An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element, the first lens element has a positive refracting power, the second lens element has a negative refracting power and an object-side surface with a concave part in a vicinity of its periphery, the third lens element has an object-side surface with a concave part in a vicinity of its periphery, and an image-side surface with a convex part in a vicinity of the optical axis, the fourth lens has an image-side surface with a convex part in a vicinity of the optical axis, the fifth lens element has object-side surface with a concave part in a vicinity of its periphery, and an image-side surface with a convex part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a convex part in a vicinity of its periphery.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 11, 2016
    Inventors: Shih-Han Chen, Yanbin Chen, Changlin Zhao
  • Publication number: 20160033745
    Abstract: An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element. The first lens element has an image-side surface with a concave part in a vicinity of its periphery, the second lens element has an image-side surface with a concave part in a vicinity of the optical axis, the third lens element has positive refractive power, the fourth lens element has an object-side surface with a convex part in a vicinity of its periphery, the fifth lens element has an object-side surface with a concave part in a vicinity of the optical axis, the sixth lens element has an image-side surface with a concave part in a vicinity of the optical axis, and the sixth lens element being made of plastic.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 4, 2016
    Inventors: Shih-Han Chen, Huabin Liao, Changlin Zhao
  • Publication number: 20150346461
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises six lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least one inequality, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: September 26, 2014
    Publication date: December 3, 2015
    Inventors: Shih-Han CHEN, Jia-Sin JHANG, Changlin ZHAO