Patents by Inventor Hiroaki Tomoe

Hiroaki Tomoe 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 glass
    Patent number: 7884040
    Abstract: Optical glass has a refractive index of 1.83 or above and an Abbe number of 26 or less and contains SiO2, TiO2, Nb2O5 and Na2O as its essential constituents in such proportions on a final oxide basis that the amounts of its oxide constituents as expressed on a mass percentage basis may satisfy the relationship: (TiO2+Nb2O5)/(Na2O+K2O)=3.0 to 4.0.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 8, 2011
    Assignee: Ohara Inc.
    Inventors: Hiroaki Tomoe, Masahiro Onozawa
  • OPTICAL GLASS
    Publication number: 20080254966
    Abstract: Optical glass has a refractive index of 1.83 or above and an Abbe number of 26 or less and contains SiO2, TiO2, Nb2O5 and Na2O as its essential constituents in such proportions on a final oxide basis that the amounts of its oxide constituents as expressed on a mass percentage basis may satisfy the relationship: (TiO2+Nb2O5)/(Na2O+K2O)=3.0 to 4.
    Type: Application
    Filed: March 13, 2008
    Publication date: October 16, 2008
    Applicant: OHARA INC.
    Inventors: Hiroaki TOMOE, Masahiro ONOZAWA