Patents by Inventor Chung-Han Wu

Chung-Han 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).

  • Publication number: 20240139337
    Abstract: The present disclosure relates to a method for treating a cancer and/or cancer metastasis in a subject comprising administering to the subject irinotecan loaded in a mesoporous silica nanoparticle. The present disclosure also provides a conjugate comprising an agent loaded in a mesoporous silica nanoparticle (MSN) defining at least one pore and having at least one functional group on a sidewall of the at least one pore.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 2, 2024
    Inventors: Cheng-Hsun WU, SI-HAN WU, YI-PING CHEN, RONG-LIN ZHANG, CHUNG-YUAN MOU, Yu-Tse LEE
  • Publication number: 20240120018
    Abstract: A memory device, a failure bits detector, and a failure bits detection method thereof are provided. The failure bits detector includes a current generator, a current mirror, and a comparator. The current generator generates a first current according to a reference code. The current mirror mirrors the first current to generate a second current at a second end of the current mirror. The comparator compares a first voltage at a first input end with a second voltage at a second input end to generate a detection result.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 11, 2024
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chung-Han Wu, Che-Wei Liang, Chih-He Chiang, Shang-Chi Yang
  • Patent number: 11711980
    Abstract: A fluid actuator includes an actuating portion, a piezoelectric unit, a conduction unit, and a levelness regulating portion. The actuating portion includes a first actuating area, a second actuating area, and at least one connecting section between the two actuating areas. The piezoelectric unit includes a first signal area and a second signal area. The two signal areas are provided in the same plane and are isolated from each other by an isolating portion. The piezoelectric unit corresponds in position to the first actuating area of the actuating portion. The conduction unit includes a first electrode and a second electrode. The first signal area of the piezoelectric unit is electrically connected to the first electrode, and the second signal area of the piezoelectric unit to the second electrode. The levelness regulating portion, the piezoelectric unit, and the conduction unit are located on the same side of the actuating portion.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: July 25, 2023
    Assignee: KOGE MICRO TECH CO., LTD.
    Inventors: Chung-Han Wu, Hsin-Cheng Wang
  • Patent number: 11585337
    Abstract: A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: February 21, 2023
    Assignee: KOGE MICRO TECH CO., LTD.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Patent number: 11549501
    Abstract: A fluid driving system includes a vibration unit, a piezoelectric element, a signal transmission layer, a plane unit, and a protrusion. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit. The protrusion is located between the vibration unit and the plane unit, and the protrusion corresponds to and protrudes toward the at least one hole.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 10, 2023
    Assignee: KOGE MICRO TECH CO., LTD.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Publication number: 20220406987
    Abstract: An actuating device includes an actuator and a stationary portion. The actuator has at least one driving portion. The stationary portion is provided at an arbitrary position along the actuator such that the driving portion forms a first driving portion and a second driving portion. The first driving portion and the second driving portion can be provided with the same actuating ability or with different actuating abilities respectively by adjusting the position of the stationary portion.
    Type: Application
    Filed: January 12, 2022
    Publication date: December 22, 2022
    Inventor: Chung-Han WU
  • Patent number: 11441553
    Abstract: A piezoelectric driving device includes a vibration unit, a piezoelectric element, a signal transmission layer, and a plane unit. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit and are sequentially stacked together.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 13, 2022
    Assignee: KOGE MICRO TECH CO., LTD.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Publication number: 20220074403
    Abstract: A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventors: Chung-Han WU, Jun-Yan Huang, Hsin-Cheng WANG
  • Patent number: 11248597
    Abstract: A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: February 15, 2022
    Assignee: KOGE MICRO TECH CO., LTD.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Publication number: 20210280769
    Abstract: An actuator includes an actuating portion, a piezoelectric unit, a conduction unit, and a levelness regulating portion. The actuating portion includes a first actuating area, a second actuating area, and at least one connecting section between the two actuating areas. The piezoelectric unit includes a first signal area and a second signal area. The two signal areas are provided in the same plane and are isolated from each other by an isolating portion. The piezoelectric unit corresponds in position to the first actuating area of the actuating portion. The conduction unit includes a first electrode and a second electrode. The first signal area of the piezoelectric unit is electrically connected to the first electrode, and the second signal area of the piezoelectric unit to the second electrode. The levelness regulating portion, the piezoelectric unit, and the conduction unit are located on the same side of the actuating portion.
    Type: Application
    Filed: November 4, 2020
    Publication date: September 9, 2021
    Inventors: Chung-Han WU, Hsin-Cheng WANG
  • Publication number: 20200052186
    Abstract: A piezoelectric driving device includes a vibration unit, a piezoelectric element, a signal transmission layer, and a plane unit. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit and are sequentially stacked together.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 13, 2020
    Applicant: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Publication number: 20200049139
    Abstract: A fluid driving device includes a vibration unit, a signal transmission layer, a piezoelectric element, and a plane unit. The signal transmission layer includes a first conductive zone and a second conductive zone. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The signal transmission layer, the piezoelectric element, and the plane unit are located at one side of the vibration unit and sequentially stacked with each other.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 13, 2020
    Applicant: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Publication number: 20200052187
    Abstract: A fluid driving system includes a vibration unit, a piezoelectric element, a signal transmission layer, a plane unit, and a protrusion. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit. The protrusion is located between the vibration unit and the plane unit, and the protrusion corresponds to and protrudes toward the at least one hole.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 13, 2020
    Applicant: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Jun-Yan Huang, Hsin-Cheng Wang
  • Patent number: 10393109
    Abstract: A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: August 27, 2019
    Assignee: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Yu-Chang Yen
  • Patent number: 10047870
    Abstract: A one way valve assembly including a base, a cover, and a valve member is provided. The base includes a first and a second lower hollows and an inlet communicated with the first lower hollow. The cover includes a first and a second upper hollows, a connecting path, an outlet, and an exhaust nozzle. Positions of the first and the second upper hollows correspond to positions of the first and the second lower hollows. The first upper hollow is communicated with the second upper hollow via the connecting path. The outlet is communicated with the second upper hollow. The valve member is disposed between the base and the cover. The valve member has a first zone, a second zone, and a third zone corresponding to the first and the second upper hollows and the connecting path, and includes a valve nozzle between the second lower hollow and the second upper hollow. The first zone can deform towards the first lower hollow or the first upper hollow.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 14, 2018
    Assignee: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Yu-Chang Yen
  • Publication number: 20180023715
    Abstract: A one way valve assembly including a base, a cover, and a valve member is provided. The base includes a first and a second lower hollows and an inlet connected through the first lower hollow. The cover includes a first and a second upper hollows, a connecting path, an outlet, and an exhaust nozzle. Positions of the first and the second upper hollows correspond to positions of the first and the second lower hollows. The first upper hollow is connected through the second upper hollow via the connecting path. The outlet is connected through the second upper hollow. The valve member is disposed between the base and the cover. The valve member has a first zone, a second zone, and a third zone corresponding to the first and the second upper hollows and the connecting path, and includes a valve nozzle between the second lower hollow and the second upper hollow. The first zone can deform towards the first lower hollow or the first upper hollow.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 25, 2018
    Applicant: Koge Micro Tech Co., Ltd.
    Inventors: Chung-Han Wu, Yu-Chang Yen
  • Patent number: 9875984
    Abstract: A substrate having a metallized surface is provided. The substrate includes a substrate having a silanated surface, an adhesive layer disposed on the silanated surface, and a first metallic layer bonded to the silanated surface through the adhesive layer. The adhesive layer is formed with a plurality of colloidal nanoparticle groups, and the colloidal nanoparticle group may include metallic nanoparticles capped with polymer. The first metallic layer and the adhesive layer have chemical bonds formed there between. The substrate may further include a second metallic layer which is electro-plated onto the first metallic layer. A method for metallizing a surface of a substrate is also provided.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: January 23, 2018
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Tzu-Chien Wei, Chih-Ming Chen, Tseng-Chieh Pan, Kuei-Chang Lai, Chung-Han Wu, Kuei-Po Chen, Nai-Tien Ou, Cheng-You Hong
  • Publication number: 20170077059
    Abstract: A substrate having a metallized surface is provided. The substrate includes a substrate having a silanated surface, an adhesive layer disposed on the silanated surface, and a first metallic layer bonded to the silanated surface through the adhesive layer. The adhesive layer is formed with a plurality of colloidal nanoparticle groups, and the colloidal nanoparticle group may include metallic nanoparticles capped with polymer. The first metallic layer and the adhesive layer have chemical bonds formed there between. The substrate may further include a second metallic layer which is electro-plated onto the first metallic layer. A method for metallizing a surface of a substrate is also provided.
    Type: Application
    Filed: November 3, 2016
    Publication date: March 16, 2017
    Inventors: TZU-CHIEN WEI, CHIH-MING CHEN, TSENG-CHIEH PAN, KUEI-CHANG LAI, CHUNG-HAN WU, KUEI-PO CHEN, NAI-TIEN OU, CHENG-YOU HONG
  • Publication number: 20160377072
    Abstract: A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided.
    Type: Application
    Filed: September 16, 2015
    Publication date: December 29, 2016
    Inventors: Chung-Han Wu, Yu-Chang Yen
  • Patent number: 9514965
    Abstract: A substrate having metallized surface is provided. The substrate having metallized surface includes a silicon substrate, an adhesive layer and a metallic layer. The silicon substrate has a silanated surface and the adhesive layer is disposed on the silanated surface. The metallic layer bonds to the silanated surface through the adhesive layer. The adhesive layer is formed with a plurality of colloidal nanoparticle groups, the colloidal nanoparticle groups each include at least one metallic nanoparticle capped with at least one polymer, and the metallic layer and the adhesive layer have chemical bonds formed there between.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 6, 2016
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Tzu-Chien Wei, Chih-Ming Chen, Tseng-Chieh Pan, Kuei-Chang Lai, Chung-Han Wu, Kuei-Po Chen, Nai-Tien Ou, Kuei-Wu Huang