Patents by Inventor Kun-Lin Chang

Kun-Lin Chang 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: 11618150
    Abstract: A toolkit includes a rotation member, a driving member and an engaging member. The driving member is assembled in one side of the rotation member. The engaging member is assembled in another side of the rotation member. Wherein the driving member is rotatable relative to the engaging member by rotating the rotation member.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: April 4, 2023
    Inventor: Kun-Lin Chang
  • Publication number: 20210339374
    Abstract: A toolkit includes a rotation member, a driving member and an engaging member. The driving member is assembled in one side of the rotation member. The engaging member is assembled in another side of the rotation member. Wherein the driving member is rotatable relative to the engaging member by rotating the rotation member.
    Type: Application
    Filed: May 4, 2020
    Publication date: November 4, 2021
    Inventor: KUN-LIN CHANG
  • Patent number: 10190578
    Abstract: A miniature pump includes a cylinder, a piston module, a driving module and a wall body. The cylinder has a first end and a second end opposite to each other along a direction. The piston module is accommodated in the cylinder. The piston module has at least one pumping chamber structure protruded towards the second end, and the pumping chamber structure is able to extend or retract along the direction. The driving module is located at the second end and connected to the pumping chamber structure, configured to drive the pumping chamber structure to extend or retract along the direction. The wall body at least partially surrounds a position of the pumping chamber structure near the first end, and is located between the cylinder and the pumping chamber structure.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 29, 2019
    Assignee: KOGE MICRO TECH CO., LTD
    Inventor: Kun-Lin Chang
  • Patent number: 9739271
    Abstract: An automatic depressurizing pump includes an air-generating unit and an airflow control unit. The air-generating unit has a first air intake hole. An air generated by the air-generating unit drives the air control unit so as to inhale or exhale airflows through the first air intake hole. The airflow control unit includes a valve base, a first valve, a second valve, a top cover, and a resilient member. The valve base includes an air output chamber and a pressure chamber. The resilient member includes a second air output hole and a depressurization valve. The second air output hole is communicated with the top of the air output chamber, and the depressurization valve hermetically covers on and fixes to the top of the pressure chamber.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 22, 2017
    Assignee: KOGE ELECTRONICS CO., LTD
    Inventor: Kun-Lin Chang
  • Publication number: 20160237997
    Abstract: A miniature pump includes a cylinder, a piston module, a driving module and a wall body. The cylinder has a first end and a second end opposite to each other along a direction. The piston module is accommodated in the cylinder. The piston module has at least one pumping chamber structure protruded towards the second end, and the pumping chamber structure is able to extend or retract along the direction. The driving module is located at the second end and connected to the pumping chamber structure, configured to drive the pumping chamber structure to extend or retract along the direction. The wall body at least partially surrounds a position of the pumping chamber structure near the first end, and is located between the cylinder and the pumping chamber structure.
    Type: Application
    Filed: March 30, 2015
    Publication date: August 18, 2016
    Inventor: Kun-Lin CHANG
  • Patent number: 9091260
    Abstract: A miniature pump includes a driving unit and an airflow control unit, which includes a bladder supporter, a compression unit, a valve base and an output valve. The compression unit has multiple intake valves and multiple bladders, each intake valve covers the corresponding intake through hole, each intake through hole is surrounded by a circular wall, wherein the circular wall is disposed on a bottom surface of the corresponding intake valve or a top surface of the corresponding bladder supporter. The valve base is arranged over the compression unit, and the valve base has multiple output through holes aligned with the bladders respectively. When the bladder is compressed, air inside the bladder is output via the output through hole and the output valve. When the bladder is decompressed, external air is introduced into the bladder via the intake through hole and the intake valve.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: July 28, 2015
    Assignee: KOGE ELECTRONICS CO., LTD
    Inventor: Kun-Lin Chang
  • Publication number: 20150118084
    Abstract: An automatic depressurizing pump includes an air-generating unit and an airflow control unit. The air-generating unit has a first air intake hole. An air generated by the air-generating unit drives the air control unit so as to inhale or exhale airflows through the first air intake hole. The airflow control unit includes a valve base, a first valve, a second valve, a top cover, and a resilient member.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 30, 2015
    Inventor: Kun-Lin CHANG
  • Publication number: 20140255230
    Abstract: An air pump includes a driving unit and an airflow control unit. A piston base has a first intake through hole. A piston unit has an intake valve and a bladder portion, and the intake valve is located over the first intake through hole. A first valve base is located over the piston unit. A flow guide groove of the first valve base crosses over the paired intake valve and bladder portion. The first valve base has a first output through hole. The first valve base has a circular wall surrounding the first output through hole. A first output valve is located over the first output through hole. A second valve base is coupled to the circular wall to define a compression chamber. The second valve base has a second output through hole communicating with the compression chamber. A second output valve is located over the second output through hole.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 11, 2014
    Applicant: XIAMEN KOGE MICRO TECH CO., LTD.
    Inventor: Kun-Lin CHANG
  • Patent number: 8427041
    Abstract: A lutetium-based phosphor having the chemical formula: xLu3Al5O12.yGd3Al5O12:CePrEuTb, and being capable of radiating reddish orange-red spectrum when activated by a shortwave light emitted by an InGaN light-emitting diode. The invention also discloses a warm white LED using the lutetium-based phosphor that produces orange-red light having the peak wavelength ?max>560 nm, half width>125 nm and color rendering index Ra?75 when activated by the LED radiation ?=420˜500 nm.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: April 23, 2013
    Inventors: Chi-Ruei Tsai, Kun-Lin Chang, Chen-Pei Hsu, Wen-Sheng Huang
  • Publication number: 20110297226
    Abstract: A photovoltaic cell is disclosed to include a monocrystalline silicon wafer, and a transparent light conversion powder which is made in the form of a polymer layer with a transparent phosphor powder filled therein and kept in contact with the outer surface of the monocrystalline silicon wafer to enhance the absorption of the short-wavelength radiation ultraviolet ?<480 nm of the sun and to re-radiate in the wavelength range ?=500˜980 nm, wherein the phosphor powder is formulated as MeIIO.xB2O3:EuCePrTbLi, in which MeII=(Mg+2,Ca+2,Sr+2,Ba+2), 0.1<x<10, preferably in the range of 0.5<x<2. Furthermore, the invention also provides a transparent light conversion powder for photovoltaic cells.
    Type: Application
    Filed: October 5, 2010
    Publication date: December 8, 2011
    Inventors: Chi-Ruei TSAI, Kun-Lin Chang, Chen-Pei Hsu, Wen-Sheng Huang
  • Publication number: 20110298358
    Abstract: A lutetium-based phosphor having the chemical formula: xLu3Al5O12.yGd3Al5O12:CePrEuTb, and being capable of radiating reddish orange-red spectrum when activated by a shortwave light emitted by an InGaN light-emitting diode. The invention also discloses a warm white LED using the lutetium-based phosphor that produces orange-red light having the peak wavelength ?max>560 nm, half width>125 nm and color rendering index Ra?75 when activated by the LED radiation ?=420˜500 nm.
    Type: Application
    Filed: January 6, 2011
    Publication date: December 8, 2011
    Inventors: Chi-Ruei Tsai, Kun-Lin Chang, Chen-Pei Hsu, Wen-Sheng Huang
  • Patent number: 6382928
    Abstract: An elaborately designed miniature air compressor is composed of a motor unit, a compression unit, and an air collection unit. Several bladders installed in the compression unit are sequentially actuated by a compression vane with a thrust and pulling force imparted from priston like motion caused by revolution of an eccentrically installed follower rod such that air is continuously supplied to the air collection unit and ejected out of an air output port uniformly, stably, and adequately. Besides, all component units of the miniature air pump are combined together by two shackles in stead of using latch pins.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: May 7, 2002
    Inventor: Kun-Lin Chang
  • Patent number: 6364636
    Abstract: A miniature diaphragm pump includes a motor unit, a compression portion, and an air collection portion. The output air is injected into the inner space of the pump through the air inlet formed at the motor unit, and the air exits from the pump through an air output port provided at the air collecting portion. A pair of air bags are provided at the compression portion which are compressed by the ends of a cross-bar in alternating fashion and a system of check valves is arranged in such a manner that to prohibit a back flow of air. A follower rod extending from the cross bar is inserted into an eccentric hole formed on a rotation member in the motor unit to make eccentric circular motion when the motor rotates in order to compress one of the air bags at a time in order to send air to the air output port of the air collection portion of the pump.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: April 2, 2002
    Inventor: Kun-Lin Chang