Patents by Inventor Qiaowei Yuan

Qiaowei Yuan 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).

  • Dual antenna system
    Patent number: 9923281
    Abstract: A disclosed dual antenna system includes a receiving antenna which includes a first surface orthogonal to an incident wave, the first surface being a first antenna aperture, and a transmitting antenna which includes a second surface parallel to a reflection direction which is a transmission direction, the second surface being a second antenna aperture. A portion of a structure of the transmitting antenna is shared by the receiving antenna.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: March 20, 2018
    Assignees: NTT DOCOMO, INC., TOHOKU UNIVERSITY
    Inventors: Tamami Maruyama, Yasuhiro Oda, Jianfeng Li, Qiaowei Yuan, Qiang Chen, Kunio Sawaya
  • DUAL ANTENNA SYSTEM
    Publication number: 20150155636
    Abstract: A disclosed dual antenna system includes a receiving antenna which includes a first surface orthogonal to an incident wave, the first surface being a first antenna aperture, and a transmitting antenna which includes a second surface parallel to a reflection direction which is a transmission direction, the second surface being a second antenna aperture. A portion of a structure of the transmitting antenna is shared by the receiving antenna.
    Type: Application
    Filed: January 15, 2013
    Publication date: June 4, 2015
    Applicants: NTT DOCOMO, INC., TOHOKU UNIVERSITY
    Inventors: Tamami Maruyama, Yasuhiro Oda, Jianfeng Li, Qiaowei Yuan, Qiang Chen, Kunio Sawaya
  • Reflectarray
    Patent number: 8836583
    Abstract: A reflectarray, including: a substrate; and a plurality of patches formed on each of areas into which a principal surface of the substrate is divided, wherein the plurality of patches are formed by including a gap.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 16, 2014
    Assignees: NTT DoCoMo, Inc., Tohoku University
    Inventors: Tamami Maruyama, Tomoyuki Ohya, Tatsuo Furuno, Kunio Sawaya, Qiang Chen, Jianfeng Li, Shiwei Qu, Qiaowei Yuan
  • Reflect array
    Patent number: 8390531
    Abstract: A reflect array (1) according to the present invention includes a plurality of array elements (10) forming an array configured to control a direction of a reflected wave (scattered wave) by controlling a phase of the reflected wave; and a ground plane (30). The ground plane (30) has a structure with a frequency selective function.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 5, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Tamami Maruyama, Shinji Uebayashi, Tatsuo Furuno, Long Li, Qiang Chen, Qiaowei Yuan, Kunio Sawaya
  • REFLECT ARRAY
    Publication number: 20120050127
    Abstract: A reflectarray, including: a substrate; and a plurality of patches formed on each of areas into which a principal surface of the substrate is divided, wherein the plurality of patches are formed by including a gap.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Applicants: TOHOKU UNIVERSITY, NTT DOCOMO, INC.
    Inventors: Tamami MARUYAMA, Tomoyuki Ohya, Tatsuo Furuno, Kunio Sawaya, Qiang Chen, Jianfeng Li, Shiwei Qu, Qiaowei Yuan
  • REFLECT ARRAY
    Publication number: 20100220036
    Abstract: A reflect array (1) according to the present invention includes a plurality of array elements (10) forming an array configured to control a direction of a reflected wave (scattered wave) by controlling a phase of the reflected wave; and a ground plane (30). The ground plane (30) has a structure with a frequency selective function.
    Type: Application
    Filed: September 30, 2009
    Publication date: September 2, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Tamami MARUYAMA, Shinji UEBAYASHI, Tatsuo FURUNO, Long LI, Qiang CHEN, Qiaowei YUAN, Kunio SAWAYA