Patents by Inventor Masataka Yokozawa

Masataka Yokozawa 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).

  • Optical modulation element module
    Patent number: 7570843
    Abstract: The present invention provides an optical modulation element module which is capable of the optical modulation for analog transmission with a low driving voltage and low chirp.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: August 4, 2009
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Norikazu Miyazaki, Masataka Yokozawa
  • Optical modulation element module
    Publication number: 20060115226
    Abstract: The present invention provides an optical modulation element module which is capable of the optical modulation for analog transmission with a low driving voltage and low chirp.
    Type: Application
    Filed: September 23, 2005
    Publication date: June 1, 2006
    Applicant: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Norikazu Miyazaki, Masataka Yokozawa