Patents by Inventor Shih-Chang Chen

Shih-Chang Chen 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: 20220099084
    Abstract: A miniature fluid transportation device is provided and includes a convergence component, a valve component, an outlet plate and a plurality of fluid transportation actuation components. The plurality of fluid transportation actuation components are disposed on the convergence component so as to transport the fluid to the convergence component. The convergence component guides the fluid transported by the fluid transportation actuation components to the outlet plate through the valve component. The outlet plate guides the fluid from different transportation actuation components back to the convergence component by a separation guiding block. The fluid is converged in a convergence central slot of the convergence component and is discharged out through a collection channel of the outlet plate. Consequently, the problem of interference owing to the convergence of the fluid transported by different fluid transportation actuation components can be avoided.
    Type: Application
    Filed: August 2, 2021
    Publication date: March 31, 2022
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Chi-Chang Yang, Jyun-Yi Jhang, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Wei-Ming Lee
  • Patent number: 11286922
    Abstract: A miniature piezoelectric pump module is provided and includes a piezoelectric pump, a microprocessor, a driving component and a feedback circuit. The piezoelectric pump includes two electrodes and a piezoelectric element and has the best efficiency while operating under an ideal operating voltage. The driving component is electrically connected to the microprocessor and the piezoelectric pump and includes a transform element and an inverting element. The transform element outputs an effective operating voltage to the piezoelectric pump. The inverting element controls the two electrodes to receive the effective operating voltage or to be grounded. The piezoelectric element is subjected to deformation for transporting fluid due to piezoelectric effect. The feedback circuit generates a feedback voltage according to the effective operating voltage.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 29, 2022
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shen-Wen Chen, Shih-Chang Chen, Chun-Hung Liao, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Patent number: 11270745
    Abstract: A method of foreground auto-calibrating data reception window for a DRAM system is disclosed. The method comprises receiving data strobe and data from a DRAM of the DARM system, capturing a data strobe clock according to the received data strobe, generating three time points with a period of the data strobe clock, sampling the data at the three time points, to obtain three sampled data, determining whether to adjust positions of the three time points according to a comparison among the three sampled data, and configuring the valid data reception window according to the positions of the three time points when determining not to adjust the positions of the three time points.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 8, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Shih-Chang Chen, Chun-Chi Yu, Chih-Wei Chang, Kuo-Wei Chi, Fu-Chin Tsai, Shih-Han Lin, Gerchih Chou
  • Patent number: 11255322
    Abstract: An electronic device includes a casing, a speaker enclosure and an actuating and sensing module. The casing has an opening. The speaker enclosure is disposed within the casing to enclose a speaker, in communication with the opening of the casing and divided into a first speaker compartment and a second speaker compartment by a partition plate disposed corresponding to the opening, so that the opening of the casing is in communication with the first speaker compartment and the second speaker compartment. The actuating and sensing module is disposed within the first speaker compartment. The speaker is disposed within the second speaker compartment. The actuating and sensing module comprises a fluid transportation device and a sensor. The fluid transportation device is driven to transport a fluid from outside the casing into the first speaker compartment through the opening of the casing to make the fluid sensed by the sensor.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 22, 2022
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Shih-Chang Chen, Li-Pang Mo, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Publication number: 20210408362
    Abstract: A piezoelectric actuator includes a square suspension plate, an outer frame, a plurality of brackets and a square piezoelectric ceramic plate. The outer frame is arranged around the suspension plate. A second surface of the outer frame and a second surface of the suspension plate are coplanar with each other. Each of the plurality of brackets has two ends, a first end is perpendicular to and connected with the suspension plate, and a second end is perpendicular to and connected with the outer frame for elastically supporting the suspension plate. Each bracket has a length in a range between 1.22 mm and 1.45 mm and a width in a range between 0.2 mm and 0.6 mm. A length of the piezoelectric ceramic plate is not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 30, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Shih-Chang CHEN, Jia-Yu LIAO, Hung-Hsin LIAO, Che-Wei HUANG, Chi-Feng HUANG, Yung-Lung HAN, Chun-Yi KUO, Wei-Ming LEE
  • Patent number: 11208995
    Abstract: A micro piezoelectric pump module includes a microprocessor, a driving element, and a piezoelectric pump. The driving element is connected to the microprocessor to receive a modulating signal and a control signal and to output a driving signal. The driving signal includes a driving voltage and a driving frequency. The piezoelectric pump is actuated by the driving signal, and the piezoelectric pump is set to be actuated at an actuation frequency and be applied with an actuation voltage value. The microprocessor drives the driving element to output the driving voltage having an initial voltage value at the driving frequency to the piezoelectric pump, and adjusts the driving frequency to the same with the actuation frequency. After the driving frequency is adjusted to reach the actuation frequency, the microprocessor drives the driving element to gradually increase the initial voltage value to reach the actuation voltage value.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: December 28, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shen-Wen Chen, Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Wei-Ming Lee, Chun-Yi Kuo
  • Patent number: 11204027
    Abstract: A fluid system includes a fluid active region, a fluid channel, a convergence chamber and plural valves. The fluid active region includes at least one fluid-guiding unit. The fluid-guiding unit is enabled under control to transport fluid to be discharged out through the outlet aperture. The fluid channel is in communication with the outlet aperture of the fluid active region, and has plural branch channels to split the fluid discharged from the fluid active region. The convergence chamber is in communication with the fluid channel. The valves each of which is disposed in the corresponding branch channel, wherein the fluid is discharged out through the branch channels according to opened/closed states of the valves under control. The fluid system of the present disclosure is capable of acquiring required flow rate, pressure and amount of the fluid to be transported.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 21, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Li-Pang Mo, Jia-Yu Liao, Che-Wei Huang, Chi-Feng Huang
  • Patent number: 11187215
    Abstract: An air quality notification device is disclosed. The air quality notification device includes an actuating and sensing module, a microprocessor, a first communication module and a power source. The actuating and sensing module includes a sensor and an actuating device. The actuating device is disposed near the sensor. The sensor senses air transmitted by the actuating device to generate air quality information. The microprocessor is electrically connected to the actuating and sensing module. The first communication module is electrically connected to the actuating and sensing module to receive and transmit the air quality information. The power source is electrically connected to the microprocessor.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 30, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Li-Pang Mo, Shih-Chang Chen, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20210363984
    Abstract: A fluid transportation actuator is disclosed and includes a silencing jet orifice plate, a chamber frame, an actuator, an insulation frame and a conductive frame. The silencing jet orifice plate includes a silencing plate, a suspension plate and a central aperture. The suspension plate is permitted to undergo a bending vibration. The central aperture is formed on a center of the suspension plate. The silencing plate is disposed and fixed in the central aperture disposed at the center of the suspension plate. The chamber frame is stacked on the suspension plate. The actuator is stacked on the chamber frame. The actuator generates the bending vibration in a reciprocating manner as a voltage is applied thereto. The actuator includes a piezoelectric-thin-plate pin. The insulation frame is stacked on the actuator. The conductive frame is stacked on the insulation frame and includes a conductive-frame pin.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 25, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Jyun-Yi Jhang, Chun-Lung Tseng, Shih-Chang Chen, Jia-Yu Liao, Chi-Feng Huang, Yung-Lung Han, Yang Ku, Yi-Ting Lu
  • Patent number: 11162487
    Abstract: An air circulation control device includes a casing and at least one air pump. The casing includes at least one entrance opening, at least one exit opening and an accommodation space. Each air pump is disposed in and closes the corresponding entrance opening. Each air pump includes a first protective film that is a waterproof and dustproof film structure allowing gas to pass therethrough. When the air pump is enabled, the gas is introduced into the accommodation space through the entrance opening and discharged from the accommodation space through the exit opening, so that the gas is circulated.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 2, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Chi-Feng Huang, Wei-Ming Lee
  • Publication number: 20210332834
    Abstract: An actuating and sensing module is disclosed and includes a bottom plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes a pressure relief orifice, a discharging orifice and a communication orifice. The gas pressure sensor is disposed on the bottom plate and seals the communication orifice. The thin gas transportation device is disposed on the bottom plate and seals the pressure relief orifice and the discharging orifice. The cover plate is disposed on the bottom plate and covers the gas pressure sensor and the thin gas-transportation device. The cover plate includes an intake orifice. The thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 28, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Shih-Chang CHEN, Jia-Yu LIAO, Hung-Hsin LIAO, Chung-Wei KAO, Chi-Feng HUANG, Yung-Lung HAN, Chang-Yen TSAI, Wei-Ming LEE
  • Publication number: 20210332810
    Abstract: An actuating and sensing module is disclosed and includes a bottom plate, terminals, a control chip, a partition plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes terminal grooves, a recess, a gas outlet and a gas relief aperture. The terminals are disposed in the terminal grooves. The control chip is disposed in the recess. The partition plate is stacked on the bottom plate and includes an outlet opening in communication with the gas outlet and a pressure relief orifice corresponding to the gas relief aperture. The thin gas transportation device seals the gas outlet and the pressure relief orifice. The cover plate includes an opening passed through by the thin gas transportation device. The gas is transported to the outlet opening by the thin gas transportation device and sensed by the gas pressure sensor disposed in the outlet opening.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 28, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Chung-Wei Kao, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Yang Ku
  • Publication number: 20210332811
    Abstract: A driving system for driving piezoelectric pump includes one or more mechanical devices and a driving circuit system electrically connected to the at least one mechanical device. The driving circuit system includes a pump-driving unit, a linear voltage-stabilizing unit, a microcontroller unit, a current-sensing unit, and a connection unit.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 28, 2021
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Che-Wei Huang, Chun-Hung Liao, Wei-Chuan Liao, Chi-Feng Huang, Yung-Lung Han, Tsung-I Lin, Chin-Wen Hsieh
  • Patent number: 11125224
    Abstract: An actuating and sensing module is disclosed and includes an actuating device, a first substrate, a second substrate, a valve membrane and a sensor stacked sequentially. The first substrate includes an intake channel, an exhaust channel, an inlet and an outlet. The valve membrane is disposed between the first substrate and the second substrate and includes an intake valve and an exhaust valve to insulate the intake channel and the exhaust channel, respectively. The actuating device is disposed to seal a through slot of the second substrate to form a compressing chamber. The inlet, the intake channel, the compressing chamber, the exhaust channel and the outlet are in communication with each other to define a gas flow loop. The sensor is disposed in the gas flow loop. While the actuating device drives gas from the outside, the gas is transported into the gas flow loop and sensed by the sensor.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 21, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Shou-Hung Chen, Hung-Hsin Liao, Chiu-Lin Lee, Mei-Yen Chen, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20210254613
    Abstract: A thin gas transportation device includes an inlet plate, a resonance sheet, an actuating element, a first insulation frame attached to the actuating element, a conductive frame, and a second insulation frame attached to the conductive frame. The conductive frame has a conductive outer frame attached to the first insulation frame, an elastic conductive pin, and a conductive piece connected to an outer edge portion of the conductive outer frame. One end of the elastic conductive pin is connected to an inner edge portion of the conductive outer frame, and the other end of the elastic conductive pin extends obliquely toward the actuating element and forms a bent portion. The bent portion presses against the actuating element and is electrically connected to the actuating element, and the bent portion is strip-shaped.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 19, 2021
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Hung-Hsin Liao, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo
  • Patent number: 11078899
    Abstract: A portable air cleaning apparatus includes a housing, an actuating and sensing device and an air cleaning unit. The housing includes an inlet through hole and an outlet through hole. The actuating and sensing module and the air cleaning unit are disposed inside the housing. The actuating and sensing module includes an actuating device and a sensor. The actuating device drives an external air to flow into an interior of the housing via the inlet through hole and discharge the air via the outlet through hole, so as to form an internal air flow. The sensor detects the internal air flow to generate an air-sensing result, such that the actuating and sensing module can accordingly control the air cleaning unit to turn on, turn off, or adjust cleaning intensity. Thus, the portable air cleaning apparatus can monitor and automatically clean the ambient air at the same time.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 3, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Shih-Chang Chen, Li-Pang Mo, Ching-Sung Lin, Yung-Lung Han, Chi-Feng Huang, Hsuan-Kai Chen
  • Patent number: 11067073
    Abstract: A fluid control device includes a piezoelectric actuator and a deformable substrate. The piezoelectric actuator includes a piezoelectric element and a vibration plate. The piezoelectric element is attached on a first surface of the vibration plate and is subjected to deformation in response to an applied voltage. The vibration plate is subjected to a curvy vibration in response to the deformation of the piezoelectric element. A bulge is formed on a second surface of the vibration plate. The deformable substrate includes a flexible plate and a communication plate stacked on each other. A synchronously-deformed structure is defined by the flexible plate and the communication plate. The deformable substrate is bent in the direction toward the vibration plate. There is a specified depth maintained between the flexible plate and the bulge of the vibration plate. The flexible plate includes a movable part corresponding to the bulge of the vibration plate.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: July 20, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Shou-Hung Chen, Hung-Hsin Liao
  • Patent number: 11067557
    Abstract: A gas detecting device includes an actuating-and-sensing module, a driving controller, a data storage device and a data processor. The actuating-and-sensing module includes a first gas sensor, a second gas sensor and a gas transportation actuator. The driving controller controls the actuations and non-actuations of the first gas sensor, the second gas sensor and the gas transportation actuator. The first gas sensor measures the target gas and transmits first gas measured information to the data storage device. The second gas sensor measures the target gas and transmits second gas measured information to the data storage device. The data processor calculates concentrations of the gases in the target gas by comparing the information stored in a gas database, the first gas measured information and the second gas measured information.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 20, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Shih-Chang Chen, Li-Pang Mo, Yung-Lung Han, Chi-Feng Huang, Wei-Ming Lee, Chun-Yi Kuo
  • Publication number: 20210215150
    Abstract: A micro pump having noise-reduced pressure-releasing structure includes a convergence plate, a valve sheet, a chamber plate, and a micro pump. The convergence plate has a convergence outlet and a discharge outlet. The valve sheet has a valve hole and a discharge recessed portion. The chamber plate has a recessed hole, a fluid determine hole, fluid through holes, and a receiving trough. The micro pump is in the receiving trough. During operation of the micro pump, the fluid is firstly transmitted to the fluid through hole and the fluid determine hole to push the valve sheet, and the fluid determine hole pushes the discharge recessed portion to block the discharge outlet. Then, since the pressure of the fluid at the fluid through hole pushes the valve sheet, the fluid flows through the valve hole so as to be discharged out from the convergence outlet.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 15, 2021
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Chi-Chang Yang, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo, Yang Ku
  • Publication number: 20210199382
    Abstract: A slim-type gas transportation device includes a slim-type gas pump and a slim-type valve structure. The slim-type valve structure includes a first thin plate, a valve frame, a valve plate and a second thin plate. The first thin plate has a hollow portion. The valve plate is disposed within an accommodation space of the valve frame. The valve plate includes a valve opening. The valve opening is not aligned with the hollow portion. The second thin plate includes a gas outlet surface, a pressure relief surface, a gas outlet groove, an outlet aperture, a pressure relief hole and a pressure relief trench. The outlet aperture is hollowed out from the gas outlet groove to the pressure relief surface and corresponding in position to the valve opening. The pressure relief hole is spaced apart from the gas outlet groove. The pressure relief trench is concavely formed from the pressure relief surface.
    Type: Application
    Filed: November 5, 2020
    Publication date: July 1, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Jia-Yu Liao, Chih-Feng Lin, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo