Patents by Inventor Yuan-Ru Tsai

Yuan-Ru 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).

  • Process for forming nitrocellulose films
    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
  • Process for forming nitrocellulose films
    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