Patents by Inventor Li Fen Yang

Li Fen Yang 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: 9637900
    Abstract: A flush handle assembly for a toilet includes a locking unit having a locking member extending through the wall of the water tank, and a sleeve positions the locking member at the water tank. A shaft extends through the locking member and a flush handle is connected to the first end of the shaft. The second end of the shaft protrudes from the locking member and is connected to a positioning member which is connected with a link. The second end of the shaft has two plates with a slot formed therebetween. The locking member has a groove which is located in the recess of the positioning member and a pin extends through the positioning member and is engaged with the groove of the locking member to connect positioning member to the locking member. The shaft is removed from the positioning member by squeezing the two plates of the shaft.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: May 2, 2017
    Assignee: Home More Enterprise Co., Ltd.
    Inventor: Li-Fen Yang
  • Publication number: 20160376780
    Abstract: A flush assembly for a toilet includes a locking unit having a locking member extending through the wall of the water tank, and a sleeve positions the locking member at the water tank. A shaft extends through the locking member and a flush handle is connected to the first end of the shaft. The second end of the shaft protrudes from the locking member and is connected to a positioning member which is connected with a link. The second end of the shaft has two plates with a slot formed therebetween. The locking member has a groove which is located in the recess of the positioning member and a pin extends through the positioning member and is engaged with the groove of the locking member to connect positioning member to the locking member. The shaft is removed from the positioning member by squeezing the two plates of the shaft.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventor: Li-Fen Yang
  • Publication number: 20160356813
    Abstract: A test device for an interface which can test the performance of an interface of an electronic product is provided. The test device includes a securing module configured to secure the electronic product and an adjustment module. The securing module includes a shell and a securing member configured to be secured in the shell. The adjustment module includes two adjustment members slidably installed in the shell and a test card mounted on the adjustment member. The adjustment members are slidable relative to the shell to align the test card with the interface, and the test card is configured to be inserted into and extracted from the interface for testing.
    Type: Application
    Filed: July 2, 2015
    Publication date: December 8, 2016
    Inventors: XIAO-YONG MA, LI-FEN YANG
  • Publication number: 20150040312
    Abstract: A drain apparatus includes a drain body, a stem, a stopper and at least one torsion spring. The drain body has a drain passage therethrough and a frame radially extending across the drain passage. The stem has a shank and one end connected to the frame. The shank has a chamber, at least one first aperture and at least one second aperture opposite to the first aperture. The stopper is configured to seal the drain passage of the drain body, and has a tube extending therefrom. The tube of the stopper is movably mounted around the stem. The torsion spring is disposed in the chamber of the shank. The torsion spring has two ends laterally engaged in the first aperture and the second aperture of the shank to abut against an inner wall of the tube of the stopper.
    Type: Application
    Filed: April 2, 2014
    Publication date: February 12, 2015
    Applicant: Home More Enterprise Co., Ltd.
    Inventor: Li-Fen Yang
  • Patent number: 7999103
    Abstract: Provided are an organic electroluminescence device whose wavelength of light emission is short and which can emit blue light having a high color purity, and a metal complex compound for realizing the device. The metal complex compound is of a specific structure having a partial structure including two tridentate ligands. The organic electroluminescence device includes: a pair of electrodes; and an organic thin film layer which has one layer or a plurality of layers including at least a light emitting layer and is disposed between the pair of electrodes. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the metal complex compound. The organic electroluminescence device emits light by applying a voltage between both the electrodes.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 16, 2011
    Assignees: Chuo University, Idemitsu Kosan Co., Ltd.
    Inventors: Masa-aki Haga, Li-fen Yang, Masumi Itabashi, Misa Ashizawa, Fumio Okuda
  • Publication number: 20080276360
    Abstract: An angle adjustable link mechanism for toilets includes a flush handle connected to the tank and a connection extension extends from a shaft of the flush handle. An adjustable assembly includes a first part and a second part which is rotatably connected to the first part. The connection extension is connected to the second part. A link has an end connected to the first part which is pivoted about a common axis with the second part so that the position of the link is set relative to the flush handle by adjustment between the first and second parts.
    Type: Application
    Filed: July 23, 2008
    Publication date: November 13, 2008
    Inventor: Li-Fen Yang
  • Publication number: 20070210699
    Abstract: A metal-complex compound which comprises a tridentate chelate ligand having a specified partial structure. An organic electroluminescence device which comprises one or more organic thin film layers having at least one light emitting layer sandwiched between a pair of electrodes, wherein the organic thin film layer comprises the metal-complex compound, which emits light by applying an electric voltage between the pair of electrodes. The present invention provides an organic EL device which emits blue light of high purity and of short wavelength together with a metal-complex compound realizing the organic EL device.
    Type: Application
    Filed: September 6, 2006
    Publication date: September 13, 2007
    Applicants: Chuo University, Idemitsu Kosan Co., Ltd.
    Inventors: Masa-aki Haga, Li-fen Yang, Fumio Okuda
  • Publication number: 20070138437
    Abstract: Provided are an organic electroluminescence device whose wavelength of light emission is short and which can emit blue light having a high color purity, and a metal complex compound for realizing the device. The metal complex compound is of a specific structure having a partial structure including two tridentate ligands. The organic electroluminescence device includes: a pair of electrodes; and an organic thin film layer which has one layer or a plurality of layers including at least a light emitting layer and is disposed between the pair of electrodes. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the metal complex compound. The organic electroluminescence device emits light by applying a voltage between both the electrodes.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 21, 2007
    Applicants: Chuo University, Idemitsu Kosan Co., Ltd.
    Inventors: Masa-aki Haga, Li-fen Yang, Masumi Itabashi, Misa Ashizawa, Fumio Okuda
  • Publication number: 20060225196
    Abstract: An angle adjustable link mechanism for toilets includes a flush handle connected to the tank and a connection extension extends from a shaft of the flush handle. An adjustable assembly includes a first part and a second part which is rotatably connected to the first part. The connection extension is connected to the second part. A link has an end connected to the first part which is pivoted about a common axis with the second part so that the position of the link is set relative to the flush handle by adjustment between the first and second parts.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 12, 2006
    Inventor: Li-Fen Yang
  • Patent number: 6182936
    Abstract: A copy holder including a flat holder base having at least one arched flange raised from a front side thereof near a top side thereof and defining a document insertion mouth, a first pair of vertically spaced lugs and a second pair of vertically spaced lugs bilaterally raised from a back side thereof; document clamping means mounted on the flat holder base and adapted to hold down inserted sheets of document in the document insertion mouth; an angle-adjustable mounting device pivoted to the first pair of vertical lugs of the holder base and adapted for securing to a monitor of a computer system for supporting the flat holder base; and a curved holding-down block pivoted to the second pair of vertically spaced lugs of the holder base and adapted to hold down turned-up sheets of document on the back side of the holder base.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: February 6, 2001
    Inventor: Li Fen Yang
  • Patent number: D783783
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 11, 2017
    Inventor: Li-Fen Yang