Patents by Inventor Woo-Hu Tsai

Woo-Hu Tsai 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: 8149413
    Abstract: A surface plasmon resonance sensing device that is portable, and having the fiber sensing unit whose resonant wavelength being within the transmission range of a single-mode fiber or a multi-mode fiber, is disclosed. The disclosed sensing device comprises: a light source unit, a fiber sensing unit, an optical sensor, a plurality of fibers, and a computing and displaying unit. The fiber sensing unit includes a trench, a cladding layer, a core layer, a first metallic layer, and a plurality of dielectric thin film layers, wherein the first metallic layer covers the trench, and the plurality of dielectric thin film layers forms on the first metallic layer. The light source provided by the light source unit will become a light signal, after the light passes through the fiber sensing unit. The optical sensor transforms the light signal into a corresponding electric signal, for the usage of the computing and displaying unit.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: April 3, 2012
    Assignee: Forward Electronics Co., Ltd.
    Inventors: Chung-Pei Lee, Yu-Chia Tsao, Woo-Hu Tsai, Hsiang-Chih Hsu
  • Publication number: 20110157590
    Abstract: A surface plasmon resonance sensing device that is portable, and having the fiber sensing unit whose resonant wavelength being within the transmission range of a single-mode fiber or a multi-mode fiber, is disclosed. The disclosed sensing device comprises: a light source unit, a fiber sensing unit, an optical sensor, a plurality of fibers, and a computing and displaying unit. The fiber sensing unit includes a trench, a cladding layer, a core layer, a first metallic layer, and a plurality of dielectric thin film layers, wherein the first metallic layer covers the trench, and the plurality of dielectric thin film layers forms on the first metallic layer. The light source provided by the light source unit will become a light signal, after the light passes through the fiber sensing unit. The optical sensor transforms the light signal into a corresponding electric signal, for the usage of the computing and displaying unit.
    Type: Application
    Filed: April 22, 2010
    Publication date: June 30, 2011
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Chung-Pei Lee, Yu-Chia Tsao, Woo-Hu Tsai, Hsiang-Chih Hsu
  • Publication number: 20110064886
    Abstract: A method for improving an optical sensor is disclosed, which includes the following steps: providing an optical sensor; acid-treating the surface of the optical sensor; forming a thin metal film on the acid-treated surface of the optical sensor; and plasma-modifying the thin metal film on the optical sensor. The aforesaid method is to clean the surface of the optical sensor and then to improve the hydrophilicity thereof by acid treatment. The thin metal film subsequently formed has good flatness and improved adhesion to the optical sensor. Once the optical sensor has the improved hydrophilicity, the plasma modification is performed to further improve optical performance of the optical sensor.
    Type: Application
    Filed: February 18, 2010
    Publication date: March 17, 2011
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Yu-Chia Tsao, Min-Tzu Chao, Woo-Hu Tsai, Shu-Ting Chang, Hsiao-Ling Yeh
  • Publication number: 20110065194
    Abstract: A microfluidic detection device is disclosed, which includes a porous membrane, a wicking pad, and an optical sensor. The porous membrane has a first end and an opposite second end, and the first end has a sample-loading area for receiving sample molecules. The wicking pad is connected with the second end of the porous membrane to move the sample molecules from the sample-loading area of the porous membrane to the second end thereof. The optical sensor has a detection zone which faces the porous membrane for sensing the sample molecules. Also, a method for detecting molecules is disclosed, which uses the aforesaid device. The method and the device can achieve the purpose of real-time detection and fast-screening for molecules.
    Type: Application
    Filed: April 23, 2010
    Publication date: March 17, 2011
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Ren-Kun Liang, Yu-Chia Tsao, Woo-Hu Tsai
  • Patent number: 7629731
    Abstract: A planar field emission illumination module includes a top substrate, a bottom substrate, and a plurality of electron-amplification sets located between the top substrate and the bottom substrate. Each electron-amplification set has multiple electron-amplification plates spaced at gaps, which are formed of a metal and coated with an electron-amplification material on the surfaces. The cross section of each electron amplification plate can be V-shaped, U-shaped, semi-circular, arc-shaped, trapezoid, irregular, and the combination thereof. The planar field emission illumination module can focus the electrons and regulate the distribution of the electrons effectively. Hence, the planar field emission illumination module can provide a flat light source with illumination uniformity and high brightness.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: December 8, 2009
    Assignee: Tatung Company
    Inventors: Woo-Hu Tsai, Tzung-Han Yang
  • Publication number: 20090103851
    Abstract: A Surface Plasmon Resonance (SPR) fiber sensor is disclosed, which comprises an optical fiber member and a plurality of optical fiber sensing units. Each of the plurality of the optical fiber sensing units comprises a cladding layer, a core layer, and a groove, and the plurality of the optical fiber sensing units is arranged into a cascade form matrix. In each of the optical fiber sensing units, the cladding layer is located at the periphery of the core layer, and the maximum depth of the groove is larger than the thickness of the cladding layer. An SPR sensing apparatus is also disclosed, which includes a light source, an optical signal detector, a plurality of fibers, and a plurality optical fiber sensing units. Besides, the optical fiber sensing units, the light source, and the optical signal detector are connected with each other through the plurality of fibers.
    Type: Application
    Filed: May 16, 2008
    Publication date: April 23, 2009
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Yu-Chia TSAO, Yi-Wen Yang, Jou-Kai Tai, Woo-Hu Tsai
  • Publication number: 20090015133
    Abstract: The present invention relates to a field emission device and an electrode structure thereof, comprising a starting base and a curved extending part formed on a surface of various shaped or dimensional structure. Therefore, the applied device and range is increased. The curved extending part is also for reducing the number of the contact point, as to simplify the procedure to design the peripheral circuit. Besides, a resisting section can be formed on the starting base. The resisting value of the resisting section is designed to provide various lighting effects.
    Type: Application
    Filed: April 3, 2008
    Publication date: January 15, 2009
    Applicant: Tatung Company
    Inventors: Woo-Hu TSAI, Tzung-Han Yang, Hsin-Ju Wu
  • Publication number: 20080036361
    Abstract: A flat field emission illumination module comprises a top substrate; a bottom substrate including a plurality of cathodes and of electron emitters, wherein the cathodes are located on the top surface of the bottom substrate and the electron emitters are mounted on the cathodes; an anode interposed between the top and bottom substrates, where the anode is provided at its bottom surface with a plurality of grooves or openings, and where the electron emitters, after assembly of the flat field emission illumination module, are accommodated in the grooves or the openings; and an illumination layer positioned at the inner surface of the grooves or openings, so as to enhance a cooling effect of field emission backlight modules, to raise the illumination efficiency of the illumination module, and to reduce the difficulty in packaging of the module.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 14, 2008
    Applicants: Forward Electronics Co., Ltd., Tatung Company
    Inventors: Woo-Hu Tsai, Ming-Chung Fan, Jung-Chien Chang
  • Publication number: 20070153283
    Abstract: The present invention relates to a surface plasmon resonance detector, that is portable and easy to operate, and its optical-fiber biosensor unit can be readily replaced. The SPR detector of the present invention comprises: a light source; an optical-fiber biosensor unit having a well, a coating layer, and a core layer; an optical detector; a plurality of optical fibers connecting with the light source, the optical-fiber biosensor unit and the optical detector; and a calculation and display unit connecting with the optical detector, wherein the optical detector receives the optical signals from the optical detector and display the calculation results thereof. Besides, the SPR detector of the present invention has high sensitivity and is able to identify species of trace biomolecules.
    Type: Application
    Filed: July 12, 2006
    Publication date: July 5, 2007
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Yu-Chia Tsao, Woo-Hu Tsai, Hong-Yu Lin, Jung-Chien Chang
  • Publication number: 20070108885
    Abstract: A planar field emission illumination module includes a top substrate, a bottom substrate, and a plurality of electron-amplification sets located between the top substrate and the bottom substrate. Each electron-amplification set has multiple electron-amplification plates spaced at gaps, which are formed of a metal and coated with an electron-amplification material on the surfaces. The cross section of each electron amplification plate can be V-shaped, U-shaped, semi-circular, arc-shaped, trapezoid, irregular, and the combination thereof. The planar field emission illumination module can focus the electrons and regulate the distribution of the electrons effectively. Hence, the planar field emission illumination module can provide a flat light source with illumination uniformity and high brightness.
    Type: Application
    Filed: July 10, 2006
    Publication date: May 17, 2007
    Applicant: Tatung Company
    Inventors: Woo-Hu Tsai, Tzung-Han Yang
  • Patent number: 7110626
    Abstract: A fiber optic vibration sensor is disclosed. This invention has an optical fiber of a tubular configuration that includes a cladding layer and a core, having a first end, a second end and a sensing region; a source of laser for emitting laser onto the first end of the optical fiber; an optical diode connected to the second end of the optical fiber; and an optical wave analyzer connected to the optical diode; wherein the sensing region includes at least a polished region formed by polishing a side of the optical fiber and a grating disposed in the polishing region.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: September 19, 2006
    Assignee: Tatung Co., Ltd.
    Inventor: Woo-Hu Tsai
  • Publication number: 20050109922
    Abstract: A fiber optic vibration sensor is disclosed. This invention has an optical fiber of a tubular configuration that includes a cladding layer and a core, having a first end, a second end and a sensing region; a source of laser for emitting laser onto the first end of the optical fiber; an optical diode connected to the second end of the optical fiber; and an optical wave analyzer connected to the optical diode; wherein the sensing region includes at least a polished region formed by polishing a side of the optical fiber and a grating disposed in the polishing region.
    Type: Application
    Filed: October 13, 2004
    Publication date: May 26, 2005
    Applicant: Tatung Co., Ltd.
    Inventor: Woo-Hu Tsai