Patents Assigned to Fine Tech Corporation
  • Patent number: 8220694
    Abstract: A friction stir welding method utilizes a joining tool comprising a friction surface; a first workpiece comprising a first treating layer, a second workpiece comprising a second treating layer, and a joining member with a melting point lower than that of the first workpiece and the second workpiece. The joining member is arranged at the joining portion of the first workpiece and the second workpiece, and abutting the first workpiece and the second workpiece. The friction surface of the joining tool is positioned to resist at least one of the first treating layer and the second treating layer. The joining tool is rotated and moved to agitate at least one of the first workpiece and the second workpiece, until at least part of the first workpiece and the second workpiece are plasticized and joined together.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 17, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd., FINE TECH Corporation
    Inventors: Koichi Nakagawa, Qing Liu, Isao Shiozawa, Takeo Nakagawa
  • Patent number: 8167188
    Abstract: A friction stir welding method includes providing a joining tool including a friction surface, a first workpiece, and a second workpiece, and arranging the first workpiece and second workpiece in position with a first joining surface abutting a second joining surface. A friction surface of a joining tool resists at least one of the first treating surface and the second treating surface, and the first workpiece and the second workpiece cooperatively define a slot. Then positioning, rotating, and moving the joining tool to rub and stir at least one of the first workpiece and the second workpiece, thus plasticizing at least part of the first workpiece and the second workpiece to join the first workpiece and the second workpiece.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 1, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd, Hon Hai Precision Industry Co., Ltd., FINE TECH Corporation
    Inventors: Koichi Nakagawa, Qing Liu, Isao Shiozawa, Takeo Nakagawa
  • Publication number: 20120018492
    Abstract: A friction stir welding method includes providing a joining tool including a friction surface, a first workpiece, and a second workpiece, and arranging the first workpiece and second workpiece in position with a first joining surface abutting a second joining surface. A friction surface of a joining tool resists at least one of the first treating surface and the second treating surface, and the first workpiece and the second workpiece cooperatively define a slot. Then positioning, rotating, and moving the joining tool to rub and stir at least one of the first workpiece and the second workpiece, thus plasticizing at least part of the first workpiece and the second workpiece to join the first workpiece and the second workpiece.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 26, 2012
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., FINE TECH Corporation, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KOICHI NAKAGAWA, QING LIU, ISAO SHIOZAWA, TAKEO NAKAGAWA
  • Patent number: 8052033
    Abstract: A friction stir welding method includes providing a joining tool including a friction surface; providing a first workpiece and a second workpiece; arranging the first workpiece and second workpiece in position with a first joining surface abutting a second joining surface, a friction surface of a joining tool resisting at least one of the first treating surface and the second treating surface; positioning, rotating and moving the joining tool to rub and stir at least one of the first workpiece and the second workpiece, thus plasticizing at least part of the first workpiece and the second workpiece to join the first workpiece and the second workpiece.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: November 8, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd, Hon Hai Precision Industry Co., Ltd., FINE TECH Corporation
    Inventors: Koichi Nakagawa, Qing Liu, Isao Shiozawa, Takeo Nakagawa
  • Patent number: 7971770
    Abstract: A friction stir method includes providing a joining tool, a mold comprising a top surface and a cutout defined from the top surface, and a workpiece comprising a treatable layer and arranged on the top surface of the mold. The joining tool resists the workpiece, and rotates and moves to agitate the treatable layer of the workpiece along an extending direction of the cutout of the mold, until a protrusion integrated with the workpiece is formed in the cutout of the mold.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 5, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd., FINE TECH Corporation
    Inventors: Koichi Nakagawa, Qing Liu, Isao Shiozawa, Takeo Nakagawa
  • Publication number: 20110132969
    Abstract: A friction stir welding method utilizes a joining tool comprising a friction surface; a first workpiece comprising a first treating layer, a second workpiece comprising a second treating layer, and a joining member with a melting point lower than that of the first workpiece and the second workpiece. The joining member is arranged at the joining portion of the first workpiece and the second workpiece, and abutting the first workpiece and the second workpiece. The friction surface of the joining tool is positioned to resist at least one of the first treating layer and the second treating layer. The joining tool is rotated and moved to agitate at least one of the first workpiece and the second workpiece, until at least part of the first workpiece and the second workpiece are plasticized and joined together.
    Type: Application
    Filed: March 23, 2010
    Publication date: June 9, 2011
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD., FINE TECH Corporation
    Inventors: KOICHI NAKAGAWA, QING LIU, ISAO SHIOZAWA, TAKEO NAKAGAWA
  • Patent number: 7490413
    Abstract: An exemplary contour measuring device (100) includes a pair of guide rails (13), a movable fixture (14), a first probe (15), a second probe (16), and an error correcting unit (17). The movable fixture is movably disposed on the guide rails. The first probe is configured for measuring an object along a contour measuring direction and obtaining a first measured contour value from the object to be measured. The second probe is configured for measuring a standard object whose contour is known along the contour measuring direction and obtaining a second measured contour value from the standard object. The error correcting unit is configured for compensating the first measured contour value according to the second measured contour value.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: February 17, 2009
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd., Fine Tech Corporation
    Inventors: Qing Liu, Jun-Qi Li, Takeo Nakagawa
  • Patent number: 7398603
    Abstract: An exemplary distance measuring probe (100) includes a tube track (12), a tip extension (16), a pair of hollow tubes (14), a pair of air discharge systems (115), a linear measuring scale (18), and a displacement sensor (19). The tip extension is configured to touch a surface of an object (50). The linear measuring scale and the displacement sensor are respectively fixed relative to one of the tube track and the tip extension. The hollow tubes contain a flux of air, and are configured to cooperatively push the tip extension to move. Each air discharge system ejects part of air in the corresponding hollow tube out of the hollow tube. The linear measuring scale displays values of displacements of the tip extension. The displacement sensor detects and reads the displacement values displayed by the linear measuring scale.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: July 15, 2008
    Assignees: Hon Hai Precision Industry Co., Ltd., FINE TECH Corporation
    Inventors: Qing Liu, Jun-Qi Li, Takeo Nakagawa
  • Publication number: 20080072442
    Abstract: An exemplary contour measuring device (100) includes a pair of guide rails (13), a movable fixture (14), a first probe (15), a second probe (16), and an error correcting unit (17). The movable fixture is movably disposed on the guide rails. The first probe is configured for measuring an object along a contour measuring direction and obtaining a first measured contour value from the object to be measured. The second probe is configured for measuring a standard object whose contour is known along the contour measuring direction and obtaining a second measured contour value from the standard object. The error correcting unit is configured for compensating the first measured contour value according to the second measured contour value.
    Type: Application
    Filed: August 23, 2007
    Publication date: March 27, 2008
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD., FINE TECH Corporation
    Inventors: QING LIU, JUN-QI LI, TAKEO NAKAGAWA
  • Patent number: 6655258
    Abstract: A rodless cylinder using a round stick type chain can be applied to a carrier for transportation of materials. The rodless cylinder uses a round stick type chain having the round stick type chain and the chain sprocket, which serve to guide the round stick type chain in a caterpillar form. The chain sprocket is axially formed on either side of the frame consisting of the rodless cylinder to install the round stick type chain in a caterpillar form. Both sides of the round stick type chain are connected to a piston within the cylinder on the frame and to a tension adjustment nut on the connector, respectively. The connector is guided to the guide bar formed between the frame vertically and selectively linked to the carrier.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: December 2, 2003
    Assignee: Fine Tech Corporation
    Inventor: Oe Sook Park