Patents by Inventor Yi-Ho Chen

Yi-Ho Chen 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: 9304325
    Abstract: The present invention provides a VCA-based lens driving device. By way of giving an improved OIS coil structure, a magnetic induction element used to sense movement of magnets atop which maybe cause from a user's hand shaking can be placed as far away from OIS coils as possible. The impact of the magnet field of the OIS coil on the magnetic induction element is thus reduced. In one embodiment, the OIS coil is down-sized to reduce the influence of the OIS coil on the magnetic induction element placed beside it. In another embodiment, the OIS coil has a one-sided indention and the magnetic induction element is placed below/or beside the indention of the OIS coil.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 5, 2016
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Fu-Yuan Wu, Shih-Ting Huang, Jyun-Jie Lin, Yi-Ho Chen
  • Publication number: 20150168668
    Abstract: An apparatus having a spring plate connecting with 3D circuit terminals comprises a base having a top surface and a thickness surface. At least one bulged plane is formed on a predetermined location of the top surface. A side surface of the bulged plane is declined from inside to outside. At least one extending end is formed on the thickness surface of the base, by corresponding to and extending toward a direction opposite to the bulged plane. A declined surface is formed on an outer side of the extending end, by extending and declining from top to bottom and also from inside to outside. At least one metal layer is formed on the bulged plane and the declined surface by means of 3D electroplating in order to form a circuit connecting the terminals and the spring plate.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 18, 2015
    Applicant: TDK Taiwan Corp.
    Inventors: Fu Yuan Wu, Yi Ho CHEN, Yu Sheng LI
  • Publication number: 20150131166
    Abstract: The present invention discloses a lens stopper mechanism comprising a case and a lens holder. The lens holder holds a lens and has at least one stopper portion; the stopper portion presses against the case after the lens holder moves toward the case for a predetermined distance.
    Type: Application
    Filed: May 21, 2014
    Publication date: May 14, 2015
    Applicant: TDK TAIWAN CORP.
    Inventors: FU-YUAN WU, YI-HO CHEN, SHIH-TING HUANG
  • Publication number: 20150022891
    Abstract: The present invention discloses a lens driving device and a method of manufacturing the same.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 22, 2015
    Inventors: Chao-Chang HU, Yi-Ho CHEN
  • Publication number: 20140368915
    Abstract: The present invention provides a lens driving device that is based on a Voice Coil Actuator (VCA) structure and provides the auto-focusing and optical image stabilization (OIS) functions. According to the present invention, these two functions can be realized by a common magnet scheme, or a separate magnet scheme. Besides, the present invention also provides an improved structure for the lens driving device to enhance the function of OIS thereof. By arranging a magnetic enhancement device below the OIS coils in the lens driving device, the magnetic driving force of the OIS coils and magnetic induction of the Hall sensors, if present, can be enhanced, and the magnetic sensitivity thereof may be also improved.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: CHAO-CHANG HU, FU-YUAN WU, SHIH-TING HUANG, JYUN-JIE LIN, YI-HO CHEN
  • Publication number: 20140368914
    Abstract: The present invention discloses lens driving device. The lens driving device includes a lens holder for holding a lens having an optical axis; a focusing coil disposed at a periphery of the lens with respect to the optical axis; an optical image stabilizer (OIS) coil structure comprising a plurality of coils; a circuit structure connected electrically to the OIS coil structure and taking control thereof; a plurality of magnets; and an elastic support structure, having an upper plate spring portion and a plurality of suspension wires, wherein each suspension wire disposed substantially parallel with the optical axis and integrally formed with the upper plate spring portion at one end and connected electrically to the circuit structure at the other end.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: CHAO-CHANG HU, FU-YUAN WU, SHIH-TING HUANG, JYUN-JIE LIN, YI-HO CHEN
  • Publication number: 20140368936
    Abstract: The present invention provides a VCA-based lens driving device. By way of giving an improved OIS coil structure, a magnetic induction element used to sense movement of magnets atop which maybe cause from a user's hand shaking can be placed as far away from OIS coils as possible. The impact of the magnet field of the OIS coil on the magnetic induction element is thus reduced. In one embodiment, the OIS coil is down-sized to reduce the influence of the OIS coil on the magnetic induction element placed beside it. In another embodiment, the OIS coil has a one-sided indention and the magnetic induction element is placed below/or beside the indention of the OIS coil.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: Chao-Chang HU, Fu-Yuan WU, Shih-Ting HUANG, Jyun-Jie LIN, Yi-Ho CHEN
  • Publication number: 20130233702
    Abstract: A multi-stationed continuous electro-polishing system includes an electrolysis tank, a driving mechanism, electrode plates and a power supply. The electrolysis tank is filled with electrolyzing liquid. The driving mechanism is placed in the electrolysis tank for driving a metal strip into and out of the electrolysis tank. Each of the electrode plates is placed at an adjustable gap from the metal strip in the electrolysis tank. The power supply includes a positive electrode connected to the metal strip and a negative electrode connected to all of the electrode plates.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Sung-Cheng Hu, Yi-Chung Lin, Shuo-Jen Lee, Yi-Ho Chen