Patents by Inventor Ru Jun Ma

Ru Jun Ma 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).

  • Conductive carbon nanotube-metal composite ink
    Patent number: 9418769
    Abstract: An electrically conductive carbon nanotube-metal composite ink may include a carbon nanotube-metal composite in which metal nanoparticles are bound to a surface of a carbon nanotube by chemical self-assembly. The electrically conductive carbon nanotube-metal composite ink may have higher electrical conductivity than a commonly used metal nanoparticles-based conductive ink, and may also be used in deformable electronic devices that are flexible and stretchable, as well as commonly used electronic devices, due to the bending and stretching properties of the carbon nanotube itself.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-woo Chung, Seung-hyun Baik, Joong-hyuk Kim, Ru-jun Ma, Young-seok Oh, Dae-woo Suh
  • Metallic zinc-based current collector
    Patent number: 8940430
    Abstract: A nickel zinc battery cell includes a metallic zinc-based current collection substrate as a part of the negative electrode. The metallic zinc-based current collector may be made of or be coated with a zinc metal or zinc alloy material and may be a foil, perforated, or expanded material. Battery cells incorporating the zinc-based current collector exhibit good cycle lifetime and initial charge performance.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 27, 2015
    Assignee: PowerGenix Systems, Inc.
    Inventors: Jeffrey Phillips, Samaresh Mohanta, Zhen Gang Fan, Ru Jun Ma, Feng Feng, Lou Uzel, Chi Yau, Jason Zhao, Zeiad M. Muntasser
  • Conductive carbon nanotube-metal composite ink
    Publication number: 20110198542
    Abstract: An electrically conductive carbon nanotube-metal composite ink may include a carbon nanotube-metal composite in which metal nanoparticles are bound to a surface of a carbon nanotube by chemical self-assembly. The electrically conductive carbon nanotube-metal composite ink may have higher electrical conductivity than a commonly used metal nanoparticles-based conductive ink, and may also be used in deformable electronic devices that are flexible and stretchable, as well as commonly used electronic devices, due to the bending and stretching properties of the carbon nanotube itself.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 18, 2011
    Inventors: Jae-woo Chung, Seung-hyun Baik, Joong-hyuk Kim, Ru-Jun Ma, Young-seok Oh, Dae-woo Suh
  • METALLIC ZINC-BASED CURRENT COLLECTOR
    Publication number: 20100092857
    Abstract: A nickel zinc battery cell includes a metallic zinc-based current collection substrate as a part of the negative electrode. The metallic zinc-based current collector may be made of or be coated with a zinc metal or zinc alloy material and may be a foil, perforated, or expanded material. Battery cells incorporating the zinc-based current collector exhibit good cycle lifetime and initial charge performance.
    Type: Application
    Filed: February 8, 2008
    Publication date: April 15, 2010
    Applicant: POWERGENIX SYSTEMS, INC.
    Inventors: Jeffrey Phillips, Samaresh Mohanta, Zheng Gang Fan, Ru Jun Ma, Feng Feng, Lou Uzel, Chi Yau, Jason Zhao, Zeiad M. Muntasser