Patents by Inventor Yu Chiehmr Ho

Yu Chiehmr Ho 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: 9280217
    Abstract: A capacitive pointer is disclosed. The capacitive pointer comprises a refill, a refill holder, a spring, a control board, a force sensor, an upper shielding, a lower shielding, a tip cover and a battery. The refill comprises a conductor and penetrates through the refill holder. The spring surrounds one end of the refill holder. The refill holder and the spring electrically connect the control board. The force sensor is located on one end of the control board. The refill and the refill holder press the spring to contact the force sensor to detect the pressure force against the refill. The upper shielding and the lower shielding combine to cover the refill, the refill holder and the spring. The tip cover surrounds one end of the refill and the upper shielding and the lower shielding and electrically connects to the control board. The battery provides the capacitive pointer with electrical power.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 8, 2016
    Assignee: Waltop International Corporation
    Inventors: Yu Chiehmr Ho, Chia-Jui Yeh
  • Publication number: 20150378456
    Abstract: A capacitive pointer is disclosed. The capacitive pointer comprises a refill, a refill holder, a spring, a control board, a force sensor, an upper shielding, a lower shielding, a tip cover and a battery. The refill comprises a conductor and penetrates through the refill holder. The spring surrounds one end of the refill holder. The refill holder and the spring electrically connect the control board. The force sensor is located on one end of the control board. The refill and the refill holder press the spring to contact the force sensor to detect the pressure force against the refill. The upper shielding and the lower shielding combine to cover the refill, the refill holder and the spring. The tip cover surrounds one end of the refill and the upper shielding and the lower shielding and electrically connects to the control board. The battery provides the capacitive pointer with electrical power.
    Type: Application
    Filed: September 19, 2014
    Publication date: December 31, 2015
    Inventors: YU CHIEHMR HO, CHIA-JUI YEH
  • Publication number: 20150084934
    Abstract: An electromagnetic and capacitive pointer is disclosed. The electromagnetic and capacitive pointer comprises a tube assembly and a conductive tube assembly, a ferrite core, an non-magnetic and conductive pin, a control circuit board, a conductive pin holder, a conductive elastomer, a holder and a power source. The non-magnetic and conductive pin, the conductive pin holder, the conductive elastomer, the control circuit board and the conductive tube assembly constitute a conductive path.
    Type: Application
    Filed: January 7, 2014
    Publication date: March 26, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: YU CHIEHMR HO
  • Patent number: D683309
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: May 28, 2013
    Assignee: Waltop International Corporation
    Inventors: Hung Tzu Chiu, Yu Chiehmr Ho