Patents by Inventor Wen-Hsiung Ko

Wen-Hsiung Ko 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: 8505448
    Abstract: An improved structure of trashcan includes an outer can with a controllable upper cover. The upper cover has a connecting hole with a stepping part that moves downward in the outer can when being stepped. A base is at the bottom of the upper cover. First, second, third, and fourth tracks surround the stepping part at symmetrical positions of the base. Each track accommodates a restoring assembly that connects to the stepping part so that the stepping part can restore its original position after the stepping part moves to the bottom of the trashcan. The first track and the second track are stacked vertically. The third track and the fourth track are also stacked vertically. This configuration decreases the area occupied by the base. As a result, the stepping area of the stepping part is increased for the user's convenience to step on.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: August 13, 2013
    Inventor: Wen-Hsiung Ko
  • Publication number: 20130037547
    Abstract: An improved structure of trashcan includes an outer can with a controllable upper cover. The upper cover has a connecting hole with a stepping part that moves downward in the outer can when being stepped. A base is at the bottom of the upper cover. First, second, third, and fourth tracks surround the stepping part at symmetrical positions of the base. Each track accommodates a restoring assembly that connects to the stepping part so that the stepping part can restore its original position after the stepping part moves to the bottom of the trashcan. The first track and the second track are stacked vertically. The third track and the fourth track are also stacked vertically. This configuration decreases the area occupied by the base. As a result, the stepping area of the stepping part is increased for the user's convenience to step on.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Inventor: Wen-Hsiung Ko
  • Publication number: 20130036924
    Abstract: An improved trashcan includes an outer can having an accommodating space with an upward opening. The top of the outer can is pivotally provided with a controllable upper cover having an opening. The opening is embedded with a stepping board. The bottom of the upper cover has at least one restoring mechanism with several elastic elements for driving the stepping board to move along the axial direction of the accommodating space reciprocally.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Inventor: Wen-Hsiung Ko
  • Patent number: 8283941
    Abstract: An AC stress test circuit for HCI degradation evaluation in semiconductor devices includes a ring oscillator circuit, first and second pads, and first and second isolating switches. The ring oscillator circuit has a plurality of stages connected in series to form a loop. Each of the stages comprises a first node and a second node. The first and second isolating switches respectively connect the first and second pads to the first and second nodes of a designated stage and both are switched-off during ring oscillator stressing of the designated stage. The present invention also provides a method of evaluating AC stress induced HCI degradation, and a test structure.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: October 9, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Sung-Nien Kuo, Yuan-Yu Hsieh, Wen-Hsiung Ko, Jih-San Lee, Kuei-Chi Juan, Kuan-Cheng Su
  • Publication number: 20110243745
    Abstract: A structure for combining a vane frame and a vane of a hanging fan includes an elastic plate onto the vane frame, a pressing portion at a front end of the elastic plate, a latching portion at a rear end of the elastic plate, and three embedding blocks on the vane frame. One of the embedding blocks abuts the elastic plate. Slants are formed on both sides of the embedding block. A snap-in portion is formed at the bottom of the embedding block. Three embedding holes are formed at a front end of the vane, each having a connecting surface for connecting the vane with each embedding block. The pressing portion abuts the vane. The connecting surface and slant abut with each other. The front end of the embedding hole is snapped with the snap-in portion. The latching portion is pressed against a rear end of the embedding hole.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Inventor: Wen-Hsiung Ko
  • Publication number: 20110220653
    Abstract: A trash bag receiving structure for a trash can, which is disposed on the outer peripheral edge of a trash can, comprises a shell having a receiving chamber, an opening being provided on one side of the receiving chamber; a container box passing through the opening and contained in the receiving chamber of the shell, the container box having a containing space and having an access opening provided on the top thereof. The container box allowing trash bags to be placed therein can be received in the shell. The container box can be pulled out of the receiving chamber of the shell for the convenience of the user to take out the trash bags.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Inventor: Wen-Hsiung Ko
  • Publication number: 20110193586
    Abstract: An AC stress test circuit for HCI degradation evaluation in semiconductor devices includes a ring oscillator circuit, first and second pads, and first and second isolating switches. The ring oscillator circuit has a plurality of stages connected in series to form a loop. Each of the stages comprises a first node and a second node. The first and second isolating switches respectively connect the first and second pads to the first and second nodes of a designated stage and both are switched-off during ring oscillator stressing of the designated stage. The present invention also provides a method of evaluating AC stress induced HCI degradation, and a test structure.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 11, 2011
    Inventors: Sung-Nien Kuo, Yuan-Yu Hsieh, Wen-Hsiung Ko, Jih-San Lee, Kuei-Chi Juan, Kuan-Cheng Su
  • Patent number: 7878359
    Abstract: A trash can with a deodorizing mechanism comprises a body having an opening formed at the top of the body, a lid pivotally coupled to the top of the body for performing an opening or closing movement, and a deodorizing mechanism installed on the body and including a bottle and a nozzle. The nozzle includes an actuating element propped by an elastic body to provide a restoring elasticity, such that if the lid is closed and covered onto the opening, the actuating element will be pressed by the lid to compress the elastic body, and the nozzle will suck a deodorant stored in the bottle and spray the deodorant towards the interior of the body. If the lid is closed and covered onto the opening, the elastic body will be compressed to slow down the closing movement of the lid.
    Type: Grant
    Filed: March 7, 2010
    Date of Patent: February 1, 2011
    Inventor: Wen-Hsiung Ko
  • Patent number: 7759957
    Abstract: A method for fabricating a test structure, in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: July 20, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Patent number: 7649377
    Abstract: A wafer level test structure in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 19, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Publication number: 20090214353
    Abstract: An improved hanging frame of the ceiling fan includes a supporting base having a plurality of holding parts and extending downwards with a plurality of supporting parts. Each of the holding parts has a first supporting section that extends with a first holding section. Each of the supporting part supports the conversion base from the bottom of a through hole, thereby positioning the ceiling fan.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 27, 2009
    Inventor: Wen-Hsiung Ko
  • Publication number: 20090058455
    Abstract: The present invention discloses a wafer level test structure and a test method; in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Application
    Filed: November 6, 2008
    Publication date: March 5, 2009
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Publication number: 20090027074
    Abstract: The present invention discloses a wafer level test structure and a test method; in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 29, 2009
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Patent number: 6983685
    Abstract: A garbage can capable of compressing garbage volume consists of an outer cylinder and a top cylinder. A top cover has a top plate with a through hole. The circumference of the top plate extends downwards to form an inner wall and the outer circumference of the top plate extends downwards to form an outer wall such that a space between the outer and inner walls can be formed. The front and the back sides of the space form a front trough and a back trough respectively and a small sheaf is placed on the front and back sections of the left and right hand walls of the space with a pedal located below the upper cover. A reset component includes mainly a first elastic part and a second elastic part. The first elastic part is located inside the front trough of the top cover, and the two ends have been fixed on a wire pedal. The second elastic part is placed inside the back trough of the top cover, and the two ends are fixed respectively on pedal with the wire.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: January 10, 2006
    Inventor: Wen-Hsiung Ko
  • Patent number: 6910412
    Abstract: A garbage container with a compress device includes a first cylinder having a first receiving space defined therein. A compress plate is reciprocally and movably received in the first cylinder for compressing the garbage in the garbage container. A cover is pivotally mounted on a top portion of the first cylinder. The cover has an opening defined therein and communicating with the first receiving space in the first cylinder. The cover includes a seat attached to a bottom of the cover and having an opening defined in the seat and corresponding to the opening in the cover. The opening in the cover allows a user's foot extending into the garbage container to step the compress plate for compressing garbage. A restituting device is mounted in the seat for providing a restitution force to the compress plate after compressing the garbage in the garbage container.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: June 28, 2005
    Inventor: Wen-Hsiung Ko
  • Publication number: 20030233950
    Abstract: A garbage container with a compress device includes a first cylinder having a first receiving space defined therein. A compress plate is reciprocally and movably received in the first cylinder for compressing the garbage in the garbage container. A cover is pivotally mounted on a top portion of the first cylinder. The cover has an opening defined therein and communicating with the first receiving space in the first cylinder. The cover includes a seat attached to a bottom of the cover and having an opening defined in the seat and corresponding to the opening in the cover. The opening in the cover allows a user's foot extending into the garbage container to step the compress plate for compressing garbage. A restituting device is mounted in the seat for providing a restitution force to the compress plate after compressing the garbage in the garbage container.
    Type: Application
    Filed: January 29, 2003
    Publication date: December 25, 2003
    Inventor: Wen-Hsiung Ko
  • Publication number: 20030233949
    Abstract: A garbage can capable of compressing garbage volume consists of an outer cylinder and a top cylinder. A top cover has a top plate with a through hole. The circumference of the top plate extends downwards to form an inner wall and the outer circumference of the top plate extends downwards to form an outer wall such that a space between the outer and inner walls can be formed. The front and the back sides of the space form a front trough and a back trough respectively and a small sheaf is placed on the front and back sections of the left and right hand walls of the space with a pedal located below the upper cover. A reset component includes mainly a first elastic part and a second elastic part. The first elastic part is located inside the front trough of the top cover, and the two ends have been fixed on a wire pedal. The second elastic part is placed inside the back trough of the top cover, and the two ends are fixed respectively on pedal with the wire.
    Type: Application
    Filed: June 19, 2002
    Publication date: December 25, 2003
    Inventor: Wen-Hsiung Ko
  • Patent number: 5680855
    Abstract: An indoor fireplace comprises a base, a feeding device, a combustion chamber, and a ventilation device. The base has a sliding plate provided with a feeding pipe in communication with the combustion chamber. The ventilation device comprises an air drawing apparatus, an air discharging apparatus, and a plurality of air circulation ducts.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: October 28, 1997
    Inventor: Wen-Hsiung Ko
  • Patent number: 5331943
    Abstract: A wood pellet stove comprising a body, a burning means, a heat exchanger means, a waste gas exhaust means, a feeding means, a cleaning means and a control system. The burning means includes a seat member, a container, a bottom member, a top member, two first pillars, two second pillars and a inlet pipe. The cleaning means includes three scrape member. Each of scrape member includes a scrape plate, a pipe, a rod and a hoop element.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: July 26, 1994
    Inventor: Wen-Hsiung Ko
  • Patent number: 4820971
    Abstract: A condition sensing capacitor (10) is placed in an appropriate position such that its capacitance Cx varies in accordance with a condition to be sensed. A reference capacitor (12) and a feedback capacitor (14) are positioned in locations in which their capacitances Co and Cf are unaffected by the sensed condition. During a first time period, the sensing capacitor is connected with a source (22) of a first calibration voltage source Vg, the reference capacitor is connected with a source (26) of a second calibration voltage Vo and the feedback capacitor is connected with the output (34). During a second time period, the charge stored on the sensing capacitor is reduced by a current mirror (60) in proportion to the charge stored on the reference capacitor. The charge on the feedback capacitor is reduced by a current mirror (62) in accordance with charge stored in stray capacitance.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: April 11, 1989
    Inventors: Wen-Hsiung Ko, Gong-Jong Yeh