Patents by Inventor Chao Duan

Chao Duan 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: 8164890
    Abstract: A portable electronic device is disclosed including a first part, a second part, and a sliding and tilting mechanism. The sliding and tilting mechanism includes a lower board fixed to the second part, an upper board fixed to the first part, an intermediate board positioned between the lower board and the upper board. The sliding and tilting mechanism further includes two elastic assemblies and a tilting assembly, and tilts the intermediate board and the upper board relative to the lower board after the upper board slides over a predetermined distance along the intermediate board.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 24, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Ke-Long Wu, Chao Duan, Chia-Hua Chen
  • Patent number: 8164889
    Abstract: A portable electronic device is disclosed including a first part, a second part, and a sliding and tilting mechanism. The sliding and tilting mechanism includes a lower board fixed to the second part, an upper board fixed to the first part, an intermediate board positioned between the lower board and the upper board. The sliding and tilting mechanism further includes two elastic assemblies, a swinging member, and a cam member, all of which engage with each other to tilt the intermediate board and the upper board relative to the lower board after the upper board slides over a predetermined distance along the intermediate board.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 24, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Chao Duan, Ke-Long Wu, Chia-Hua Chen
  • Publication number: 20120030905
    Abstract: An exemplary hinge assembly includes a sleeve, a first member, a second member, a conductive member and a resilient member. The sleeve includes an open end. The first member is received in the sleeve. The conductive member is positioned on the first member. The second member is located next to the first member. One of the first member and the second member have a cam, the other of the first member and second member have a cam follower interacting with the cam so that the first member rotates about an axis and the second member moves linearly along the axis when the cam follower follows the cam. The resilient member is fitted in the sleeve and provides an elastic force to bias the first member and the second member into contact with each other. A plurality of tabs formed adjacent to the open end contact the conductive member for electronically connecting the sleeve to the first member.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 9, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20120030904
    Abstract: An exemplary hinge assembly includes a sleeve, a first member, a second member, and a resilient member. The sleeve includes a sleeve wall and an open end. The first member is received in the sleeve. The second member is located next to the first member. One of the first member and the second member have a cam, the other of the first member and second member have a cam follower interacting with the cam so that the first member rotates about an axis and the second member moves linearly along the axis when the cam follower follows the cam. The resilient member is fitted in the sleeve and provides an elastic force to bias the first member and the second member into contact with each other. At least one tab is formed adjacent to the open end and blocking a minor portion of the open end. The at least one tab retains the first, second, and resilient members in the sleeve for preventing them from escaping the sleeve through the open end.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 9, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20120023703
    Abstract: An exemplary hinge assembly includes a sleeve, a first member, a second member, and a resilient member. The sleeve includes an end wall, a circumferential wall and an open end. A shaft portion is formed on the end wall. The shaft portion extends in the space defined by the circumferential wall and opposite to the open end. The first member is rotatable about the shaft portion. The second member is located next to the first member and rotatable about the shaft portion. The resilient member is placed around the shaft portion and provides an elastic force biasing the first member and the second member into contact with each other. The shaft portion is configured to prevent the first member, the second member and the resilient member from separating from the shaft portion.
    Type: Application
    Filed: August 31, 2010
    Publication date: February 2, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Patent number: 8099833
    Abstract: A washer is for a hinge assembly. The hinge assembly includes a shaft. The washer is placed around the shaft. The engagement between the washer and the shaft is a clearance fit. By the clearance engagement between the washer and the main shaft, the mechanism efficiency is greatly improved.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: January 24, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen, Zhi-Yu Hu
  • Publication number: 20110286160
    Abstract: A hinge assembly includes a receiving seat, a control member, a clutch member, a follower, a main shaft and an elastic element. The receiving seat includes a first cam surface. The control member is releasably latched with the receiving seat. The clutch member includes at least one projection. The follower includes a second cam surface engaging with the at least one projection. The receiving seat, the control member, the clutch member and the follower are placed around the shaft. The elastic element provides an elastic force for the follower. After the control member is unlocked, the second cam surface engages with the first cam surface.
    Type: Application
    Filed: November 23, 2010
    Publication date: November 24, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110277274
    Abstract: A hinge assembly includes a main shaft, a fixing seat, a follower, a cam and a first elastic element. The fixing seat is fixed with the main shaft. The follower is placed around the shaft, and the fixing seat selectively locks with the follower. The cam is placed around the shaft, and engages with the follower. The first elastic element provides an elastic force to make the cam and the follower resist each other and provides a force to make the cam and the follower rotate together.
    Type: Application
    Filed: November 23, 2010
    Publication date: November 17, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110266019
    Abstract: A grounding mechanism is used for a slidable electronic device including a first housing and a second housing. The grounding mechanism includes a grounding tab and a protrusion. The grounding tab is for attachment to the first housing, and defines a depression coated with a conductive layer. The protrusion is formed in the second housing. When the protrusion is received in the recess, the protrusion abuts against the conductive layer for electronically connecting the first housing to the second housing.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 3, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110267787
    Abstract: A chip card holder for holding a chip card includes a fixing member and a sliding member. The fixing member defines a receiving space to receive the chip card. The fixing member includes two latching portions at two opposite sides thereof. Each latching portion includes a bent plate and a supporting plate. The bent plate defines a slot. The supporting plate is positioned above the receiving space. The sliding member includes a main plate and an operating portion at one end of the main plate. Two sliding blocks are formed on two sides of the main plate correspondingly. Each sliding block is slidably engaged in a corresponding slot. The supporting plates support the main plate.
    Type: Application
    Filed: October 8, 2010
    Publication date: November 3, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110268943
    Abstract: A substrate coating and a method of forming the same are provided. The substrate coating includes a first layer formed on a substrate, in which the composition of the first layer includes at least silicon-rich-carbon, and the amount of silicon is about equal to or greater than the amount of carbon; and a second layer formed on the first layer, in which the composition of the second layer includes at least fluorine doped diamond-like-carbon. The substrate coating not only is easy to clean, has good wearing performance, and provides a smooth surface, but also has better adhesion to prevent peeling off.
    Type: Application
    Filed: March 11, 2011
    Publication date: November 3, 2011
    Applicant: WINSKY TECHNOLOGY LIMITED
    Inventors: Kit Ling NG, Xin Chao DUAN, Po Ching CHAN, Winston CHAN
  • Publication number: 20110266020
    Abstract: A grounding mechanism is used for a slidable electronic device including a first housing, a second housing, a conductive member and a grounding tab. The grounding tab is for attachment to the first housing. The receiving portion is formed in the second housing. The conductive member is attached to the receiving portion. The grounding tab contacts the conductive member, the first housing is electrically connected to the second housing.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 3, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: Chao Duan, Chia-Hua Chen
  • Publication number: 20110266018
    Abstract: A grounding mechanism is used for a slide-type electronic device including a first housing and a second housing. The grounding mechanism includes a grounding tab for attachment to the first housing and an opening defined in the second housing. Two sidewalls are formed in the opening, and a conductive layer is coated on each sidewall. When the grounding tab is received in the opening, the grounding tab abuts against the conductive layer of the sidewalls for electronically connecting the first housing to the second housing.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 3, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110254417
    Abstract: A hinge assembly includes a shaft, a cam, a follower, and a resilient member. The follower is disposed on the shaft, one end of the follower having a first cam surface, the first cam surface forming a first sub-cam portion. The cam is positioned on the shaft and adjacent to the follower, the cam having a second cam surface, the second cam surface engaging with the first cam surface. The second cam surface forms a second sub-cam portion, and the first sub-cam portion engages with the second sub-cam portion. The resilient member is placed around the shaft forcing the first cam surface against the second cam surface. After the first sub-cam portion slides and rotates relative to the second sub-cam portion, the first cam surface slides and rotates relative to the second cam surface.
    Type: Application
    Filed: September 24, 2010
    Publication date: October 20, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Publication number: 20110239404
    Abstract: A hinge assembly includes a shaft, a follower, a cam, a resilient member and a sleeve. The follower includes a cam surface. The follower is placed around the shaft. The cam has a latching cam surface, the cam surface being engaged with the cam latching surface, the cam placed around the shaft. The resilient member is placed around the shaft and provides an elastic force to make the cam surface abut against the latching cam surface. The sleeve includes a plurality of side portions. Each side portion includes a flattened portion and an arcuate portion arching outside between the flattened portion. The arcuate portion defines an outline of a circle having a larger cross-section than would be allowed only by the flattened portions, and the resilient member is received in the arcuate portions.
    Type: Application
    Filed: August 31, 2010
    Publication date: October 6, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: CHAO DUAN, CHIA-HUA CHEN
  • Patent number: D654050
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 14, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen
  • Patent number: D654051
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 14, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen
  • Patent number: D654466
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 21, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen
  • Patent number: D654467
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 21, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen
  • Patent number: D654468
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 21, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chao Duan, Chia-Hua Chen