Patents by Inventor Jiahn-Chang Wu

Jiahn-Chang Wu 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: 8802503
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is formed from a first metal and a second metal. An LED is on an inner end of the first metal. An outer end of the first metal has been bent upward twice 90 degrees to form a top flat as an extended top electrode of the package. An outer end of the second metal has been bent downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package. The LED and a bonding wire may be encapsulated with glue.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 12, 2014
    Assignee: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Publication number: 20140193930
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is formed from a first metal and a second metal. An LED is on an inner end of the first metal. An outer end of the first metal has been bent upward twice 90 degrees to form a top flat as an extended top electrode of the package. An outer end of the second metal has been bent downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package. The LED and a bonding wire may be encapsulated with glue.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 10, 2014
    Applicant: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Patent number: 8710540
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is formed from a first metal and a second metal. An LED is on an inner end of the first metal. An outer end of the first metal has been bent upward twice 90 degrees to form a top flat as an extended top electrode of the package. An outer end of the second metal has been bent downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package. The LED and a bonding wire may be encapsulated with glue.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: April 29, 2014
    Assignee: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Publication number: 20140042483
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is made from a single metal sheet, one manufacturing process embodiment includes: preparing a piece of single metal sheet, forming a first metal and a coplanar second metal, mounting an LED on an inner end of the first metal, wire-bonding top electrode to an inner end of the second metal, encapsulating at least the LED and the bonding wire with a protection glue, bending an outer end of the first metal upward twice 90 degrees to form a top flat as an extended top electrode of the package, and bending an outer end of the second metal downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package.
    Type: Application
    Filed: August 29, 2013
    Publication date: February 13, 2014
    Applicant: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Patent number: 8524541
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is made from a single metal sheet, one manufacturing process embodiment includes: preparing a piece of single metal sheet, forming a first metal and a coplanar second metal, mounting an LED on an inner end of the first metal, wire-bonding top electrode to an inner end of the second metal, encapsulating at least the LED and the bonding wire with a protection glue, bending an outer end of the first metal upward twice 90 degrees to form a top flat as an extended top electrode of the package, and bending an outer end of the second metal downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Publication number: 20120273835
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is made from a single metal sheet, one manufacturing process embodiment includes: preparing a piece of single metal sheet, forming a first metal and a coplanar second metal, mounting an LED on an inner end of the first metal, wire-bonding top electrode to an inner end of the second metal, encapsulating at least the LED and the bonding wire with a protection glue, bending an outer end of the first metal upward twice 90 degrees to form a top flat as an extended top electrode of the package, and bending an outer end of the second metal downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 1, 2012
    Applicant: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang WU
  • Patent number: 8247835
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is made from a single metal sheet, one manufacturing process embodiment includes: preparing a piece of single metal sheet, forming a first metal and a coplanar second metal, mounting an LED on an inner end of the first metal, wire-bonding top electrode to an inner end of the second metal, encapsulating at least the LED and the bonding wire with a protection glue, bending an outer end of the first metal upward twice 90 degrees to form a top flat as an extended top electrode of the package, and bending an outer end of the second metal downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: August 21, 2012
    Assignee: Cheng Kung Capital, LLC
    Inventor: Jiahn-Chang Wu
  • Patent number: 7887229
    Abstract: A waterproof ring unit is located in the opening of a socket. A ring ditch is made around the inner surface of the waterproof ring unit. When a flanged light emitting diode (LED) lamp is inserted into the socket, the ring ditch structurally couples to the flange. The waterproof ring embraces the lamp body to form a waterproof module for the LED lamp.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 15, 2011
    Inventor: Jiahn-Chang Wu
  • Publication number: 20110012162
    Abstract: An LED package with an extended top electrode and an extended bottom electrode is made from a single metal sheet, one manufacturing process embodiment includes: preparing a piece of single metal sheet, forming a first metal and a coplanar second metal, mounting an LED on an inner end of the first metal, wire-bonding top electrode to an inner end of the second metal, encapsulating at least the LED and the bonding wire with a protection glue, bending an outer end of the first metal upward twice 90 degrees to form a top flat as an extended top electrode of the package, and bending an outer end of the second metal downward twice 90 degrees to form a bottom flat as an extended bottom electrode of the package.
    Type: Application
    Filed: September 4, 2009
    Publication date: January 20, 2011
    Inventor: Jiahn-Chang WU
  • Patent number: 7806556
    Abstract: A metal base has a mounting hole made in the wall for housing a light unit, and a reflection surface opposite to the hole for reflecting the light from the light unit to form a reflection lamp with high heat dissipation ability.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: October 5, 2010
    Inventor: Jiahn-Chang Wu
  • Patent number: 7798702
    Abstract: A light emitting device with a top electrode and a bottom electrode is pushed by a plug to make contacts with either an upper metal plate or a lower metal plate each serving as one of the leads for an electrode of the light emitting devices. The plug is inserted through an opening larger than the light emitting device in the metal plate not in contact with the light emitting device but serving as another lead for the light emitting device. The plug is locked in place by means of threaded screw heads, snug-fit, snap-on buttons or an elastic sleeve. Thus, the light emitting device can be easily replaced without any wire bonding. A plurality of the light unit can be sandwiched between the upper metal plate and the lower metal plate.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: September 21, 2010
    Inventor: Jiahn-Chang Wu
  • Patent number: 7755199
    Abstract: A diode chip is mounted on two bottom metal leads of a surface-mount package through two flexible links. The links are zigzag cantilevers attached to the metallic plates. The cantilevers serve as springs to support the device and to cushion any temperature stress or bending stress so as not to damage the connection between the device and the metallic leads.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: July 13, 2010
    Inventor: Jiahn-Chang Wu
  • Publication number: 20100091486
    Abstract: A plurality of LED lamps are mounted on a substrate and sealed within a lamp house to form a closed LED lamp. A circulation fan is installed inside the air-tight LED lamp, with the guidance of a sleeve frame which encloses at least partial of the fan to form partial portion of an air circulation path. An air inlet is made on the sleeve frame behind or in the lateral of the fan, and an air outlet is made on the frame before the fan. The air circulates between inside the sleeve frame and outside the sleeve frame within the sealed lamp housing so as to make the temperature even distribution inside the lamp.
    Type: Application
    Filed: December 5, 2008
    Publication date: April 15, 2010
    Inventor: Jiahn-Chang WU
  • Publication number: 20090242365
    Abstract: An electronic device such as a light device or a voice device which has two electrodes; one of the electrodes electrically couples to a freely swinging lead. A first terminal of a power supply couples to a first electrode of the device, a second terminal is configured in a position within a swinging range of the chain lead; the electronic device is turned on/off when the chain lead swings to touch/leave the second electrode. A tilt indicator, vibration indicator, a voice toy or a light emitting toy actuated by vibration or tilt can be made according to the invention.
    Type: Application
    Filed: December 4, 2008
    Publication date: October 1, 2009
    Inventor: Jiahn-Chang WU
  • Publication number: 20090230622
    Abstract: A chess piece is embedded with a light unit; a central lead and peripheral lead are made on its bottom. A chess board comprises a top electrode plate and a bottom electrode place. The top electrode plate has a plurality holes where the central leads electrically couples to a bottom electrode plate. The chess piece is lit when placed in position on a chess board where the central lead electrically couples to the bottom electrode plate and the peripheral lead electrically couples to the top electrode plate.
    Type: Application
    Filed: December 3, 2008
    Publication date: September 17, 2009
    Inventor: Jiahn-Chang WU
  • Patent number: 7586247
    Abstract: A thin resistive layer is connected in series and integrated with a light emitting device as a ballast to stabilize the current through the light emitting device.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: September 8, 2009
    Inventor: Jiahn-Chang Wu
  • Publication number: 20090185386
    Abstract: A metal base has a mounting hole made in the wall for housing a light unit, and a reflection surface opposite to the hole for reflecting the light from the light unit to form a reflection lamp with high heat dissipation ability.
    Type: Application
    Filed: March 3, 2008
    Publication date: July 23, 2009
    Inventor: Jiahn-Chang WU
  • Patent number: 7556400
    Abstract: A light board is made with a receptacle substrate for holding cassette light units. The convenience of assembly and disassembly of the light units from the receptacle substrate makes the product easily to be maintained for changing different color light units, changing different displaying patterns, and removing or replacing a failure light unit.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: July 7, 2009
    Inventor: Jiahn-Chang Wu
  • Patent number: 7527391
    Abstract: A lighting board is made with a receptacle substrate accommodated to accept cassette light units. The convenience of assembly and disassembly of the light unit from the receptacle substrate makes the product easily to be maintained for changing different color light units, changing different displaying patterns, remove or replace a failed light unit in the lighting board.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: May 5, 2009
    Inventor: Jiahn-Chang Wu
  • Patent number: RE42179
    Abstract: The leads of a light emitting diode are made coaxial. The inner lead protrudes lower than the outer lead. The package is inserted into a spongy display panel for power supply. The display panel has three layers: a lower conducting layer for contacting said inner lead and a top conducting layer for contacting said outer layer, and an insulating layer between the top and the bottom layer. For LED with a bottom electrode and a top electrode, the LED can be mounted on the planar tops of the inner lead and the top electrode wire bonded to the outer lead, or the LED can be mounted on the side surface of the inner lead and the top electrode wire bonded to the outer lead. For LED with two bottom electrode, the LED electrodes can straddle over the planar tops of the inner lead and the outer lead, or the LED electrodes can straddle over the telescopic side surfaces of the two leads.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: March 1, 2011
    Inventor: Jiahn-Chang Wu