Patents by Inventor Chi-chen Chen

Chi-chen 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: 20080283259
    Abstract: A compact pneumatic hand tool having a cylinder assembly received in a space of a body, wherein, the bottom inlet opening of the cylinder assembly is communicated with the air inlet in the space, meanwhile, the rear inlet passage of the cylinder assembly is corresponded to the control knob mounting portion of the body. Moreover, a control knob is extended through the control knob mounting portion of body as well as the rear inlet passage of the cylinder assembly, and a rotor of the cylinder assembly is coupled with a second coupling portion of a striking assembly. In addition, the front opening of the body is covered with the front cap and a sealing pad is provided between the body and the front cap, meanwhile the central axle is extended out of the front cap.
    Type: Application
    Filed: August 6, 2008
    Publication date: November 20, 2008
    Inventor: Chi-Chen CHEN
  • Publication number: 20080093095
    Abstract: A compact pneumatic hand tool composed of a body, a cylinder assembly, a sealing pad, a striking assembly, a front cap, a control knob, a ventilation cap and threaded bolts. A first bearing is mounted around a rear end of the striking assembly and an outer rim of the first bearing is securely received in a central hole of the cylinder assembly. A second bearing is mounted on a central shaft of the rotor in the cylinder assembly. The control knob is mounted on the cylinder assembly. A front end of the central shaft of the striking assembly extends out of a front cap and the body is connected to the front cap via threaded bolts so that the striking assembly and the cylinder assembly are sealingly enclosed between the front cap and the body to accomplish the compact and light-weight requirements.
    Type: Application
    Filed: September 22, 2006
    Publication date: April 24, 2008
    Inventor: Chi-Chen Chen
  • Publication number: 20080093096
    Abstract: A compact pneumatic hand tool composed of a body, a cylinder assembly, a sealing pad, a striking assembly, a front cap, a control knob, a ventilation cap and threaded bolts. A first bearing is mounted around a rear end of the striking assembly and an outer rim of the first bearing is securely received in a central hole of the cylinder assembly. A second bearing is mounted on a central shaft of the rotor in the cylinder assembly. The control knob is mounted on the cylinder assembly. A front end of the central shaft of the striking assembly extends out of a front cap and the body is connected to the front cap via threaded bolts so that the striking assembly and the cylinder assembly are sealingly enclosed between the front cap and the body to accomplish the compact and light-weight requirements.
    Type: Application
    Filed: September 22, 2006
    Publication date: April 24, 2008
    Inventor: Chi-Chen Chen
  • Patent number: 7241421
    Abstract: The present invention provides a method for combining a fluid delivery system with an analysis system for performing immunological, chemical, or biological assays. The method provides a miniature plastic fluidic cartridge containing a reaction chamber with a plurality of immobilized species, a capillary channel, and a pump structure along with an external linear actuator corresponding to the pump structure to provide force for the fluid delivery. The plastic fluidic cartridge can be configured in a variety of ways to affect the performance and complexity of the assay performed.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 10, 2007
    Assignee: AST Management Inc.
    Inventors: James Russell Webster, Ping Chang, Shaw-Tzuv Wang, Chi-Chen Chen, Rong-I Hong
  • Patent number: 7235307
    Abstract: A process of forming a nitrocellulose film on a carrier includes the steps of (i) atomizing a nitrocellulose solution to form a plurality of fine nitrocellulose particles and (ii) evenly spraying the nitrocellulose particles on the carrier to form the nitrocellulose film. The film has a predetermined thickness. The nitrocellulose solution is atomized by an ultrasonic spraying nozzle to control a size of each of the nitrocellulose particles to be sprayed on the carrier. The nebulizer can be air-assisted by inert air to control characteristics of the nitrocellulose spray pattern.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: June 26, 2007
    Assignee: AST Management, Inc.
    Inventors: Chi-Chen Chen, James Russell Webster, Rong-I Hong, Yuan-Ru Tsai, Chi-Che Chen, Ko-Yuan Tseng, Ping Chang
  • Publication number: 20070031287
    Abstract: The present invention provides a method for combining a fluid delivery system with an analysis system for performing immunological or other chemical of biological assays. The method comprises a miniature plastic fluidic cartridge containing a reaction chamber with a plurality of immobilized species, a capillary channel, and a pump structure along with an external linear actuator corresponding to the pump structure to provide force for the fluid delivery. The plastic fluidic cartridge can be configured in a variety of ways to affect the performance and complexity of the assay performed.
    Type: Application
    Filed: August 15, 2006
    Publication date: February 8, 2007
    Inventors: James Webster, Ping Chang, Shaw-Tzuv Wang, Chi-Chen Chen, Rong-I Hong
  • Publication number: 20070020147
    Abstract: The present invention provides a method for combining a fluid delivery system with an analysis system for performing immunological or other chemical of biological assays. The method comprises a miniature plastic fluidic cartridge containing a reaction chamber with a plurality of immobilized species, a capillary channel, and a pump structure along with an external linear actuator corresponding to the pump structure to provide force for the fluid delivery. The plastic fluidic cartridge can be configured in a variety of ways to affect the performance and complexity of the assay performed.
    Type: Application
    Filed: August 16, 2006
    Publication date: January 25, 2007
    Inventors: James Webster, Ping Chang, Shaw-Tzuv Wang, Chi-Chen Chen, Rong-I Hong
  • Publication number: 20070020148
    Abstract: The present invention provides a method for combining a fluid delivery system with an analysis system for performing immunological or other chemical of biological assays. The method comprises a miniature plastic fluidic cartridge containing a reaction chamber with a plurality of immobilized species, a capillary channel, and a pump structure along with an external linear actuator corresponding to the pump structure to provide force for the fluid delivery. The plastic fluidic cartridge can be configured in a variety of ways to affect the performance and complexity of the assay performed.
    Type: Application
    Filed: August 16, 2006
    Publication date: January 25, 2007
    Inventors: James Webster, Ping Chang, Shaw-Tzuv Wang, Chi-Chen Chen, Rong-I Hong
  • Publication number: 20050191484
    Abstract: A process of forming a nitrocellulose film on a carrier includes the steps of (i) atomizing a nitrocellulose solution to form a plurality of fine nitrocellulose particles and (ii) evenly spraying the nitrocellulose particles on the carrier to form the nitrocellulose film. The film has a predetermined thickness. The nitrocellulose solution is atomized by an ultrasonic spraying nozzle to control a size of each of the nitrocellulose particles to be sprayed on the carrier. The nebulizer can be air-assisted by inert air to control characteristics of the nitrocellulose spray pattern.
    Type: Application
    Filed: October 20, 2004
    Publication date: September 1, 2005
    Applicant: Agnitio Science & Technology
    Inventors: Chi-Chen Chen, James Webster, Rong-I Hong, Yuan-Ru Tsai, Chi-Che Chen, Ko-Yuan Tseng, Ping Chang
  • Publication number: 20040063217
    Abstract: The present invention provides a method for combining a fluid delivery system with an analysis system for performing immunological or other chemical of biological assays. The method comprises a miniature plastic fluidic cartridge containing a reaction chamber with a plurality of immobilized species, a capillary channel, and a pump structure along with an external linear actuator corresponding to the pump structure to provide force for the fluid delivery. The plastic fluidic cartridge can be configured in a variety of ways to affect the performance and complexity of the assay performed.
    Type: Application
    Filed: May 14, 2003
    Publication date: April 1, 2004
    Inventors: James Russell Webster, Ping Chang, Shaw-Tzuv Wang, Chi-Chen Chen, Rong-I Hong
  • Patent number: 6192939
    Abstract: A pneumatic apparatus and method for driving a microflow is disclosed. The microflow driving apparatus of this invention comprises an external pneumatic driving device that generates an array of airflows; an air gallery to accept airflows of said pneumatic driving device and to generate a suction force and an exclusion force; and a fluid channel connected with said air gallery to allow a fluid to flow inside it. In the air gallery, a trapezoid block is provided to generate an air circle from at least one of said airflows. An open gap is provided in the fluid channel at the connection of the air gallery and the fluid channel. When different combinations of airflows are introduced into the air gallery, a suction force or an exclusion force is generated to drive the reaction fluid inside the fluid channel to proceed, retreat or pause. A method using the apparatus for driving a microflow is also disclosed.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: February 27, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Nan-Kuang Yao, Yue-Min Wan, Chi-chen Chen, Lung-Yu Hung, Shin-Hwan Wang, Si-Wei Chang