Patents by Inventor Chi-Sung Chang

Chi-Sung 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: 11985784
    Abstract: A server information handling system is secured by a bezel that couples to an access location, such as an air vent at a front or rear face of a housing. The bezel includes a security structure having a lock and configured to couple directly at the front face or with a bezel extension at the rear face so that the server information handling system can use the same bezel with both a front face or rear face rack mount. The bezel has a lock integrated with the security structure, an air filter that fits over the security structure to filter air flowing into the housing, and a filter brace that captures the air filter by coupling to the security structure over the air filter. The filter brace attaches and detaches at the security structure when the security structure locks a server information handling system housing so that the air filter can be changed while the housing remains secure.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: May 14, 2024
    Assignee: Dell Products L.P.
    Inventors: Peter T. Clark, Amrita Sidhu Maguire, Richard W. Guzman, Sean P. O'Donnell, Matthew B. Gilbert, Georg Todtenbier, Oscar Coutinho, Yung-Chun Chen, Ming-Chiao Lee, Chi-Sung Chang
  • Patent number: 11970387
    Abstract: A micro-electro mechanical system (MEMS) device includes a MEMS substrate, at least one movable element laterally confined within a matrix layer that overlies the MEMS substrate, and a cap substrate bonded to the matrix layer through bonding material portions. A first movable element selected from the at least one movable element is located inside a first chamber that is laterally bounded by the matrix layer and vertically bounded by a first capping surface that overlies the first movable element. The first capping surface includes an array of downward-protruding bumps including respective portions of a dielectric material layer. Each of the downward-protruding bumps has a vertical cross-sectional profile of an inverted hillock. The MEMS device can include, for example, an accelerometer.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chun-wen Cheng, Chi-Hang Chin, Kuei-Sung Chang
  • Patent number: 11968856
    Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: April 23, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Chung-Chih Wu, Po-Jui Chen, Hoang Yan Lin, Guo-Dong Su, Wei-Kai Lee, Chi-Jui Chang, Wan-Yu Lin, Byung Sung Kwak, Robert Jan Visser
  • Patent number: 11956994
    Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 9, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Chung-Chih Wu, Hoang Yan Lin, Guo-Dong Su, Zih-Rou Cyue, Li-Yu Yu, Wei-Kai Lee, Guan-Yu Chen, Chung-Chia Chen, Wan-Yu Lin, Gang Yu, Byung-Sung Kwak, Robert Jan Visser, Chi-Jui Chang
  • Publication number: 20240113607
    Abstract: A resonant vibration actuator is provided, comprising: a casing, a mover, a plurality of electromagnet sets, two elastic suspensions, and a connecting circuit; the casing is provided with connection terminals for connection on the outside; the mover comprising: a mover frame, a plurality of permanent magnet units, two magnetic backs, the permanent magnet units and the magnetic backs being arranged in the mover frame; the electromagnet sets being arranged between two permanent magnet units of the mover; the elastic suspensions being connected to the casing and the mover respectively through two connection portions at both ends; the connecting circuit being used to connect the electromagnet set and the connection terminals outside the casing; wherein, by energizing the electromagnet set, the electromagnet acts on the permanent magnet unit to make the mover move relatively in the casing to generate vibration.
    Type: Application
    Filed: November 16, 2022
    Publication date: April 4, 2024
    Inventors: Chin-Sung Liu, Hsiao-Ming Chien, Chi-Ling Chang, Shin-Ter Tsai
  • Patent number: 11944412
    Abstract: A blood pressure detection device manufactured by a semiconductor process includes a substrate, a microelectromechanical element, a gas-pressure-sensing element, a driving-chip element, an encapsulation layer and a valve layer. The substrate includes inlet apertures. The microelectromechanical element and the gas-pressure-sensing element are stacked and integrally formed on the substrate. The encapsulation layer is encapsulated and positioned on the substrate. A flowing-channel space is formed above the microelectromechanical element and the gas-pressure-sensing element. The encapsulation layer includes an outlet aperture in communication with an airbag. The driving-chip element controls the microelectromechanical element, the gas-pressure-sensing element and valve units to transport gas.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 2, 2024
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ying-Lun Chang, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Wei-Ming Lee, Chun-Yi Kuo, Tsung-I Lin
  • Publication number: 20230129135
    Abstract: A server information handling system is secured by a bezel that couples to an access location, such as an air vent at a front or rear face of a housing. The bezel includes a security structure having a lock and configured to couple directly at the front face or with a bezel extension at the rear face so that the server information handling system can use the same bezel with both a front face or rear face rack mount. The bezel has a lock integrated with the security structure, an air filter that fits over the security structure to filter air flowing into the housing, and a filter brace that captures the air filter by coupling to the security structure over the air filter. The filter brace attaches and detaches at the security structure when the security structure locks a server information handling system housing so that the air filter can be changed while the housing remains secure.
    Type: Application
    Filed: October 27, 2021
    Publication date: April 27, 2023
    Applicant: Dell Products L.P.
    Inventors: Peter T. Clark, Amrita Sidhu Maguire, Richard W. Guzman, Sean P. O'Donnell, Matthew B. Gilbert, Georg Todtenbier, Oscar Coutinho, Yung-Chun Chen, Ming-Chiao Lee, Chi-Sung Chang
  • Publication number: 20230128507
    Abstract: A server information handling system is secured by a bezel that couples to an access location, such as an air vent at a front or rear face of a housing. The bezel includes a security structure having a lock and configured to couple directly at the front face or with a bezel extension at the rear face so that the server information handling system can use the same bezel with both a front face or rear face rack mount. The bezel has a lock integrated with the security structure, an air filter that fits over the security structure to filter air flowing into the housing, and a filter brace that captures the air filter by coupling to the security structure over the air filter. The filter brace attaches and detaches at the security structure when the security structure locks a server information handling system housing so that the air filter can be changed while the housing remains secure.
    Type: Application
    Filed: October 27, 2021
    Publication date: April 27, 2023
    Applicant: Dell Products L.P.
    Inventors: Peter T. Clark, Amrita Sidhu Maguire, Richard W. Guzman, Sean P. O'Donnell, Matthew B. Gilbert, Georg Todtenbier, Oscar Coutinho, Yung-Chun Chen, Ming-Chiao Lee, Chi-Sung Chang
  • Patent number: 8875534
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: November 4, 2014
    Assignee: Wistron Corporation
    Inventors: Wen-Chin Wu, Chi-Sung Chang, Ming-Chih Chen, Sung-Yu Hsieh
  • Patent number: 8646287
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 11, 2014
    Assignee: Wistron Corporation
    Inventors: Wen-Chin Wu, Chi-Sung Chang, Ming-Chih Chen, Sung-Yu Hsieh
  • Publication number: 20130252532
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: Wistron Corporation
    Inventors: Wen-Chin WU, Chi-Sung CHANG, Ming-Chih CHEN, Sung-Yu HSIEH
  • Publication number: 20130250513
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: Wistron Corporation
    Inventors: Wen-Chin WU, Chi-Sung CHANG, Ming-Chih CHEN, Sung-Yu HSIEH
  • Patent number: 8464961
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space so as to enhance the heat-dissipating efficiency of a cooling fan, minimize crashing and other problems due to poor heat dissipation, avoid the use of a heat-dissipating module that is high in cost and complicated in structure, and reduce manufacturing costs.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: June 18, 2013
    Assignee: Wistron Corporation
    Inventors: Wen-Chin Wu, Chi-Sung Chang, Ming-Chih Chen, Sung-Yu Hsieh
  • Publication number: 20090323280
    Abstract: An electronic apparatus includes a housing and an airflow regulating device. The housing defines an accommodating space therein, and an air inlet that places the accommodating space in fluid communication with the external environment. The airflow regulating device includes a cover panel for covering and uncovering the air inlet, and an actuating mechanism coupled to the cover panel and driving movement of the cover panel to adjust the degree of opening of the air inlet in response to a change in temperature in the accommodating space so as to enhance the heat-dissipating efficiency of a cooling fan, minimize crashing and other problems due to poor heat dissipation, avoid the use of a heat-dissipating module that is high in cost and complicated in structure, and reduce manufacturing costs.
    Type: Application
    Filed: April 22, 2009
    Publication date: December 31, 2009
    Applicant: Wistron Corporation
    Inventors: Wen-Chin Wu, Chi-Sung Chang, Ming-Chih Chen, Sung-Yu Hsieh
  • Patent number: 5627394
    Abstract: An object of the present invention is to provide an LD-MOS transistor with a reduced device real estate and high breakdown strength. An extended drain region doped with phosphorus is formed in contact with an underside of an insulation layer and a drain diffusion region, respectively. The insulation layer is deposited over a conductive gate layer and a drain diffusion region, respectively.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: May 6, 1997
    Assignee: Motorola, Inc.
    Inventors: Chi-Sung Chang, Judith L. Sutor
  • Patent number: D624535
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 28, 2010
    Assignee: Wistron Corporation
    Inventors: Chu-Chia Tsai, Yi-Wei Tao, Ming-Tsung Ho, Chi-Sung Chang, Sung-Yu Hsieh
  • Patent number: D1018807
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: March 19, 2024
    Assignee: Dell Products L.P.
    Inventors: Peter Clark, Chi-Sung Chang, Georg Todtenbier, Oscar Coutinho