Patents by Inventor Ho Hsien Chen

Ho Hsien 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).

  • Patent number: 10494396
    Abstract: The present invention relates to a method of separating betanin from red quinoa by supercritical fluid fractionation, including: mixing an extract of red quinoa with an ethanol/water mixture to obtain a mixture of red quinoa/ethanol/water; and separating betanin from the mixture of red quinoa/ethanol/water by supercritical fluid fractionation, which operates under a pressure between 2300 to 4400 psi at a temperature between 35 to 65° C. for a period of time between 15 to 90 minutes.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 3, 2019
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ho-Hsien Chen, Chen-Hsing Yu, Nyvonne Tiqu Gina Nelma
  • Publication number: 20170174717
    Abstract: The present invention relates to a method of separating betanin from red quinoa by supercritical fluid fractionation, including: mixing an extract of red quinoa with an ethanol/water mixture to obtain a mixture of red quinoa/ethanol/water; and separating betanin from the mixture of red quinoa/ethanol/water by supercritical fluid fractionation, which operates under a pressure between 2300 to 4400 psi at a temperature between 35 to 65° C. for a period of time between 15 to 90 minutes.
    Type: Application
    Filed: January 22, 2016
    Publication date: June 22, 2017
    Inventors: Ho-Hsien Chen, Chen-Hsing Yu, Nyvonne Tiqu Gina Nelma
  • Publication number: 20140173974
    Abstract: A method for producing biodiesel includes feeding methanol into a tank and heating methanol to a temperature above a critical temperature of methanol to obtain a supercritical methanol. A reactive matrix is fed into the tank. The reactive matrix includes acetic acid and a material oil. A molar ratio of acetic acid to the material oil is in a range from 1:1 to 5:1. A molar ratio of methanol to the material oil is in a range from 20:1 to 90:1. A supercritical carbon dioxide is fed into the tank. A total pressure of the supercritical methanol and the supercritical carbon dioxide is higher than 10 MPa. The supercritical methanol, the material oil, acetic acid, and the supercritical carbon dioxide react with each other in the tank at 240-500° C. and 8.1-50 MPa for 0.1-1.5 hours to obtain biodiesel.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 26, 2014
    Inventors: Ho-Hsien Chen, Tzou-Chi Huang, Chao-Yi Wei
  • Publication number: 20080308428
    Abstract: A method for generating high concentration chlorine dioxide having purity over 90% by means of an electrolytic procedure using an electrolytic material prepared from NaCl and NaClO2 subject to the control of optimal operation parameters of current 80˜110 Amp, concentration of sodium chloride to be 20˜25% sodium chloride and sodium chlorite to be 5% minimum, operation temperature 55˜65° C., and material feeding speed 30˜50 ml/min. Under the effect of ClO2 after 20 minutes, no bacteria count is detectable, and bacteria count Log value of SPA water of aerobic count 1.5×105 CFU/mL is dropped by 1.46 Log CFU/g in 120 ppm ClO2. Therefore, the ClO2 preparation method of the invention is an economical and convenient process suitable for on-line continuous disinfection or sterilization application.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Inventors: Ho-Hsien Chen, Tzou-Chi Huang, Hao-Hsun Huang, Jung-Chang Tung
  • Publication number: 20060277782
    Abstract: A negative pressure type drying machine includes a wheeled machine base carrying an drying chamber that has the peripheral walls respectively formed of high transmittance glasses, a hygrometer/thermometer for measuring the temperature and humidity in the drying chamber, an electric heater mounted in the drying chamber at the bottom for heating the air inside drying chamber, a high pressure blower for drawing air out of the drying chamber to produce a negative pressure in the drying chamber, and a control system mounted in the wheeled machine base below the drying chamber for controlling the operation of the electric heater and the high pressure blower.
    Type: Application
    Filed: October 25, 2005
    Publication date: December 14, 2006
    Inventors: Ho-Hsien Chen, Tzou-Chi Huang, Fu-Liang Tsai
  • Publication number: 20060204638
    Abstract: A method of processing low-fat sweet potatoes chips having the characteristics of porosity and crispness is disclosed to include the steps of (a) cutting sweet potatoes into sweet potatoes chips, (b) blanching the sweet potatoes chips with SAPP solution, (c) pre-drying the blanched sweet potatoes chips, (d) coating the pre-dried blanched sweet potatoes chips with a shortening oil, and (e) heating the sweet potatoes chips thus obtained with a superheated steam.
    Type: Application
    Filed: October 25, 2005
    Publication date: September 14, 2006
    Inventors: Ho-Hsien Chen, Tzou-Chi Huang
  • Patent number: 6941673
    Abstract: A closed-type drying system a drying chamber with glass windows to allow light entering, an condensation and heating system connected between two distal ends of the drying chamber and controlled by an automatic control system, the condensation and heating system including an air blower for blowing air through the drying chamber, a heater for heating air passing through the drying chamber, two evaporators for condensing moisture from output air of the drying chamber, a heat energy reclamation chamber connected between the air blower and the evaporator, a condenser mounted inside the heat energy reclamation chamber for preheating air passing through the heat energy reclamation chamber, a first compressor mounted in the heat energy reclamation chamber for heat exchange with the flow of air passing through reclamation chamber, and a second compressor adapted to provide low temperature conditions (if needed) in the drying chamber.
    Type: Grant
    Filed: June 12, 2004
    Date of Patent: September 13, 2005
    Assignee: National Pintung University of Science and Technology
    Inventors: Ho Hsien Chen, Jwo Jyh Huang