Patents by Inventor Wen-Chun Chen

Wen-Chun 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: 20250064211
    Abstract: A medical rehabilitation chair includes a main frame, multiple castor devices mounted on the bottom of the main frame, and two armrest boards mounted on two sides of the main frame. A telescopic damping driver, a seat frame assembly, a backrest frame assembly, a leg support assembly, a lifting mechanism, and a foot support assembly are assembled on the main frame. The seat frame assembly has a front section connecting the leg support assembly and a rear section connecting the backrest frame assembly. The telescopic damping driver drives the backrest frame assembly, the seat frame assembly, and the leg support assembly, to produce different swinging angles. The lifting mechanism drives the seat frame assembly to lift or lower. The foot support assembly is movable in a horizontal direction to protrude from the front section of the main frame.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 27, 2025
    Inventor: Wen-Chun Chen
  • Publication number: 20250064656
    Abstract: A medical rehabilitation chair includes a main frame, multiple castor devices mounted on the bottom of the main frame, and two armrest boards mounted on two sides of the main frame. A telescopic damping driver, a seat frame assembly, a backrest frame assembly, a leg support assembly, a lifting mechanism, and a foot support assembly are assembled on the main frame. The seat frame assembly has a front section connecting the leg support assembly and a rear section connecting the backrest frame assembly. The telescopic damping driver drives the backrest frame assembly, the seat frame assembly, and the leg support assembly, to produce different swinging angles. The lifting mechanism drives the seat frame assembly to lift or lower. The foot support assembly is movable in a horizontal direction to protrude from the front section of the main frame.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 27, 2025
    Inventor: Wen-Chun Chen
  • Patent number: 11795352
    Abstract: The present disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylated polymer, a crosslinking agent and a silane copolymer, wherein the silane copolymer comprises 70 to 95 weight parts of an acrylate monomer containing C1-C4 alkyl group and 5 to 30 weight parts of a silane represented by the following formula (I): X—R1—SiR23-a(OR3)a??(I) wherein the weight-average molecular weight of the silane copolymer is ranging from 40,000 to 150,000. The silane copolymer can enhance the initial adhesion strength, rework ability and weather resistance of the (meth)acrylate adhesive composition. Furthermore, the (meth)acrylate adhesive composition can be used in the flexible optical film with a good bending restoring property and adhesion.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 24, 2023
    Assignee: BenQ Materials Corporation
    Inventors: Wen-Chun Chen, Yan-Chiuan Liou, Pao-Hsun Wu, Yi-Ting Tseng, Chung-Han Lee
  • Patent number: 11781046
    Abstract: The disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylate polymer, a cross-linking agent and a reactive siloxane copolymer with the acid value of the (meth)acrylate polymer is between 0 and 15 mgKOH/g, and the reactive siloxane copolymer derived from the copolymerization of a silane compound represented by the formula: X—R1—SiR23-a(OR3)a (I), a non-hydroxyl acrylate monomer containing C1-C4 alkyl group and a hydroxyl (meth)acrylate monomer, wherein the use amount of the reactive siloxane copolymer is between 0.1 parts to 6 parts by weight per hundred parts by weight of the (meth)acrylate polymer, wherein X is an acryl group or a (methyl)acryloxy group, R1 is a C1-C4 alkyl group or alkoxy group, R2 and R3 respectively are C1-C4 alkyl group, and a is an integer between 1 to 3.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: October 10, 2023
    Assignee: BenQ Materials Corporation
    Inventor: Wen-Chun Chen
  • Publication number: 20230123272
    Abstract: The disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylate polymer, a cross-linking agent and a reactive siloxane copolymer with the acid value of the (meth)acrylate polymer is between 0 and 15 mgKOH/g, and the reactive siloxane copolymer derived from the copolymerization of a silane compound represented by the formula: X—R1—SiR23-a(OR3)a (I), a non-hydroxyl acrylate monomer containing C1-C4 alkyl group and a hydroxyl (meth)acrylate monomer, wherein the use amount of the reactive siloxane copolymer is between 0.1 parts to 6 parts by weight per hundred parts by weight of the (meth)acrylate polymer, wherein X is an acryl group or a (methyl)acryloxy group, R1 is a C1-C4 alkyl group or alkoxy group, R2 and R3 respectively are C1-C4 alkyl group, and a is an integer between 1 to 3.
    Type: Application
    Filed: March 23, 2022
    Publication date: April 20, 2023
    Applicant: BenQ Materials Corporation
    Inventor: Wen-Chun Chen
  • Publication number: 20220270789
    Abstract: A chip resistor includes a main body having opposite first and second surfaces and a peripheral surface connected between the first and second surfaces, and first and second electrode units oppositely and separately disposed on the peripheral surface. The main body includes a resistance layer having opposite top and bottom surfaces, a metallic heat dissipation layer disposed on the top surface of the resistance layer, a metallic heat conductive layer disposed on the bottom surface of the resistance layer, and an insulating unit interposed between the resistance layer and the metallic heat dissipation layer, and between the resistance layer and the metallic heat conductive layer.
    Type: Application
    Filed: June 22, 2021
    Publication date: August 25, 2022
    Inventors: Tim WANG, Quo-Xiang CHI, Chia-Cheng CHENG, Wen-Chun CHEN
  • Publication number: 20210348040
    Abstract: The present disclosure relates to a (meth)acrylate adhesive composition comprising a (meth)acrylated polymer, a crosslinking agent and a silane copolymer, wherein the silane copolymer comprises 70 to 95 weight parts of an acrylate monomer containing C1-C4 alkyl group and 5 to 30 weight parts of a silane represented by the following formula (I): X—R1—SiR23-a(OR3)a??(I) wherein the weight-average molecular weight of the silane copolymer is ranging from 40,000 to 150,000. The silane copolymer can enhance the initial adhesion strength, rework ability and weather resistance of the (meth)acrylate adhesive composition. Furthermore, the (meth)acrylate adhesive composition can be used in the flexible optical film with a good bending restoring property and adhesion.
    Type: Application
    Filed: October 22, 2020
    Publication date: November 11, 2021
    Inventors: Wen-Chun Chen, Yan-Chiuan Liou, Pao-Hsun Wu, Yi-Ting Tseng, Chung-Han Lee
  • Patent number: 9552043
    Abstract: A handheld electronic device is provided. The handheld electronic device includes a touch display unit, a sensor unit and a processing unit. The sensor unit detects a rotation angle of the handheld electronic device relative to a gravity direction and a displacement of the handheld electronic device. The processing unit is electrically connected to the touch display unit and the sensor unit to extend a timeout threshold of the touch display unit from a first value to a second value that is larger than the first value when the rotation angle is within a reading mode range. The processing unit keeps the timeout threshold at the second value when at least a first condition that the displacement of the handheld electronic device is larger than a predetermined value is met.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: January 24, 2017
    Assignee: HTC Corporation
    Inventors: Wen-Chun Chen, Hsin-Ti Chueh, Abhishek Saxena, Chia-Wei Chen, Hung-Wen Chien
  • Publication number: 20150062044
    Abstract: A handheld electronic device is provided. The handheld electronic device includes a touch display unit, a sensor unit and a processing unit. The sensor unit detects a rotation angle of the handheld electronic device relative to a gravity direction and a displacement of the handheld electronic device. The processing unit is electrically connected to the touch display unit and the sensor unit to extend a timeout threshold of the touch display unit from a first value to a second value that is larger than the first value when the rotation angle is within a reading mode range. The processing unit keeps the timeout threshold at the second value when at least a first condition that the displacement of the handheld electronic device is larger than a predetermined value is met.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Wen-Chun CHEN, Hsin-Ti CHUEH, Abhishek SAXENA, Chia-Wei CHEN, Hung-Wen CHIEN
  • Patent number: 8792655
    Abstract: An apparatus for detecting the approach distance of a human body and performing different actions according to the detecting results comprises: an infrared sensing circuit for sensing the human body's movement; a short-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with a preset reference level; a long-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with another preset reference level; and a long-distance indication-signal time delayer, used for delaying the output of the signals from the long-distance-signal level detector.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 29, 2014
    Inventors: Wen-Chun Chen, Lan-Chung Hou
  • Patent number: 8363111
    Abstract: A resolution test device and a method thereof are provided. The resolution test method is adapted for testing a resolution of a camera device. The resolution test method includes providing a graph to the camera device, capturing a test image shot by the camera device, shifting an analyzing window a specific distance in a first direction from a static area to a first area on the test image, analyzing the first area to generate a first high-pass element, shifting the analyzing window back to the static area, shifting the analyzing window the specific distance in a second direction from the static area to a second area on the test image, analyzing the second area to generate a second high-pass element, generating a third high-pass element according to the first and the second high-pass element, and defining the resolution of the camera device according to the third high-pass element.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: January 29, 2013
    Assignee: Altek Corporation
    Inventors: Ku-Nien Chang, Wen-Chun Chen
  • Publication number: 20120320312
    Abstract: An extendable display device including an extendable substrate, and microcapsule display film. The microcapsule display film is located on the extendable substrate. The microcapsule display film includes a microcapsule display material and a plasticizer.
    Type: Application
    Filed: January 11, 2012
    Publication date: December 20, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ming-Huan Yang, Wen-Chun Chen, Chen-Chu Tsai
  • Publication number: 20120274788
    Abstract: A resolution test device and a method thereof are provided. The resolution test method is adapted for testing a resolution of a camera device. The resolution test method includes providing a graph to the camera device, capturing a test image shot by the camera device, shifting an analyzing window a specific distance in a first direction from a static area to a first area on the test image, analyzing the first area to generate a first high-pass element, shifting the analyzing window back to the static area, shifting the analyzing window the specific distance in a second direction from the static area to a second area on the test image, analyzing the second area to generate a second high-pass element, generating a third high-pass element according to the first and the second high-pass element, and defining the resolution of the camera device according to the third high-pass element.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 1, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Ku-Nien Chang, Wen-Chun Chen
  • Patent number: 8294373
    Abstract: An illumination apparatus is provided. The apparatus includes a power supply unit, a switch unit, a bulb, a wireless unit, and a control unit. The power supply unit is for supplying power. The switch unit is for opening or closing a circuit between the power source unit and the bulb. The wireless unit is for receiving wireless signals from an external control device, and generating a first control signal when receiving the wireless signals. The control unit is for generating a close signal according to the first control signal. The switch unit closes the circuit between the power source unit and the bulb according to the close signal to enable the bulb to keep emitting light; and opens the circuit between the power source unit and the bulb if no receiving the close signal, thereby keeping the bulb extinguishing. A related control device for controlling the apparatus is also provided.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: October 23, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hung-Chang Ko, Suo-Bing Su, Po-Wei Kuo, Chih-Yuan Yang, Wen-Chun Chen, Li-Cheng Chiang
  • Patent number: D753860
    Type: Grant
    Filed: December 7, 2014
    Date of Patent: April 12, 2016
    Assignee: HOOLIN RESEARCH COMPANY LIMITED
    Inventor: Wen-Chun Chen
  • Patent number: D971948
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: December 6, 2022
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen
  • Patent number: D982610
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: April 4, 2023
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen, Shu-Jung Hsu, Tsao-Wei Hung
  • Patent number: D1027976
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 21, 2024
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen, Shu-Jung Hsu, Tsao-Wei Hung
  • Patent number: D1063950
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: February 25, 2025
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen, Shu-Jung Hsu, Tsao-Wei Hung
  • Patent number: D1067237
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: March 18, 2025
    Assignee: VIVOTEK INC.
    Inventors: Kuan-Hung Chen, Kai-Sheng Chuang, Chia-Chi Chang, Yu-Fang Huang, Kai-Ting Yu, Wen-Chun Chen