Patents by Inventor Goro Enomoto

Goro Enomoto 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).

  • High dispersion optical glass
    Patent number: 5332700
    Abstract: An optical glass which is a SiO.sub.2 -Nb.sub.2 O.sub.5 -R'.sub.2 O (where R' is an alkali metal element)-F system of a specific composition range exhibits optical constants of a refractive index (Nd) of about 1.52-1.67 and an Abbe number (.upsilon. d) of about 32-50, is free of PbO and has an improved light transmissivity.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: July 26, 1994
    Assignee: Kabushiki Kaisha Ohara
    Inventors: Katsuhiko Yamaguchi, Futoshi Ishizaki, Naoyuki Goto, Hisao Yatsuda, Goro Enomoto, Hideo Yasui
  • Low refractive optical glass of a flint glass type
    Patent number: 5320985
    Abstract: An optical glass which is a SiO.sub.2 --Nb.sub.2 O.sub.5 --R'.sub.2 O (R' being an alkali metal element)-F system of a specific composition range exhibits optical constants of a refractive index (Nd) of about 1.60 or below and an Abbe number (.nu.d) of about 57-40, is free of PbO and has an improved light transmissivity.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: June 14, 1994
    Assignee: Kabushiki Kaisha Ohara
    Inventor: Goro Enomoto