Patents by Inventor Yuan-Yuan Liu

Yuan-Yuan Liu 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).

  • Ink cartridge of ink-jet printer
    Patent number: 6824259
    Abstract: An ink cartridge of an inkjet printer is formed by an ink box, and an ink box cover. A connection portion thereof is formed with a tilt stepped surface. A top of the ink box cover is formed with a liquid filling hole and an air inlet. The liquid filling hole is at the same side of the output port of the ink box and the air inlet is at an opposite side of the output port. A plurality of posts are installed in the ink box cover. Thereby, after the ink box is melted-connected to the ink box cover, the posts extrudes the filling material therein to form an air flow path. Thereby, the ink in the ink box is supplemented from the farmost end so as to avoid that ink in one side is exhausted, while the ink in another side can not supplement to the output port.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: November 30, 2004
    Inventor: Yuan-Yuan Liu
  • Ink cartridge of ink-jet printer
    Publication number: 20030234843
    Abstract: An ink cartridge of an inkjet printer is formed by an ink box, and an ink box cover. A connection portion thereof is formed with a tilt stepped surface. A top of the ink box cover is formed with a liquid filling hole and an air inlet. The liquid filling hole is at the same side of the output port of the ink box and the air inlet is at an opposite side of the output port. A plurality of posts are installed in the ink box cover. Thereby, after the ink box is melted-connected to the ink box cover, the posts extrudes the filling material therein to form an air flow path. Thereby, the ink in the ink box is supplemented from the farmost end so as to avoid that ink in one side is exhausted, while the ink in another side can not supplement to the output port.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventor: Yuan-Yuan Liu
  • Computer front bezel
    Patent number: D512068
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 29, 2005
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yuan-Yuan Liu, Chun-Chi Liang, Yun-Dong Xu
  • Computer front bezel
    Patent number: D512431
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: December 6, 2005
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yuan-Yuan Liu, Chun-Chi Liang, Yun-Dong Xu, Rong He
  • Computer front bezel
    Patent number: D514110
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: January 31, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yuan-Yuan Liu, Chun-Chi Liang, Yun-Dong Xu, Rong He
  • Network device
    Patent number: D520502
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: May 9, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yun-Dong Xu, Chun-Chi Liang, Yuan-Yuan Liu
  • Front bezel for computer enclosure
    Patent number: D527385
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: August 29, 2006
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Yuan-Yuan Liu, Yun-Dong Xu
  • Front bezel for computer enclosure
    Patent number: D534170
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: December 26, 2006
    Assignee: Hon Hai Precision Industry Co., Ltd
    Inventors: Yu-Rui Yan, Yun-Dong Xu, Yuan-Yuan Liu
  • Front bezel for computer enclosure
    Patent number: D554131
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 30, 2007
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Yuan-Yuan Liu
  • Front bezel for a computer enclosure
    Patent number: D574002
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: July 29, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Xue-Cheng Kuang, Chun-Chi Liang, Jiing-Renn Yu, Yu Wang, Yuan-Yuan Liu
  • Front bezel for computer enclosure
    Patent number: D575292
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 19, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Le-Le Deng, Chun-Chi Liang, Jiing-Renn Yu, Yun-Dong Xu, Yuan-Yuan Liu
  • Front bezel for computer enclosure
    Patent number: D576629
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: September 9, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Yan-Lin Zhu, Chun-Chi Liang, Jiing-Renn Yu, Chao-Chi Chang, Yun-Dong Xu, Yuan-Yuan Liu
  • External hard disk box
    Patent number: D577021
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: September 16, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Xue-Cheng Kuang, Chun-Chi Liang, Jiing-Renn Yu, Yu Wang, Yuan-Yuan Liu, Meng Zhang
  • Front bezel for a computer enclosure
    Patent number: D585901
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: February 3, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Yuan-Yuan Liu, Chun-Chi Liang, Chao-Chi Chang, Jiing-Renn Yu, Yun-Dong Xu
  • Front bezel for computer enclosure
    Patent number: D642580
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 2, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Guang-Yao Lee, Chao-Chi Chang, Yun-Dong Xu, Yuan-Yuan Liu, Chun-Mao Huang
  • Front bezel for computer enclosure
    Patent number: D643041
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 9, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Guang-Yao Lee, Chao-Chi Chang, Yun-Dong Xu, Yuan-Yuan Liu, Long-Juan Wang
  • Computer enclosure
    Patent number: D645042
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: September 13, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Guang-Yao Lee, Chao-Chi Chang, Yun-Dong Xu, Yuan-Yuan Liu, Chun-Mao Huang, Sheng Lin