Patents by Inventor Fujio Komorita

Fujio Komorita 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: 4226627
    Abstract: An optical glass of a B.sub.2 O.sub.3 --SiO.sub.2 --La.sub.2 O.sub.3 --Yb.sub.2 O.sub.3 system and additionally containing SnO.sub.2 is stable in spectral transmissivity, is scarcely liable to tinting and has high refractive and low dispersive characteristics.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: October 7, 1980
    Assignee: Kabushiki Kaisha Ohara Kogaku Garasu Seizosho
    Inventors: Satoshi Inoue, Fujio Komorita
  • Optical glass
    Patent number: 4128432
    Abstract: An optical glass consisting basically of a B.sub.2 O.sub.3 -La.sub.2 O.sub.3 - ZrO.sub.2 -Nb.sub.2 O.sub.5 -PbO-BaO (and/or ZnO) system is free from a poisonous CdO or ThO.sub.2 component and has an excellent light transmission property in a transition region from an ultraviolet portion to a visible portion as compared with conventional optical glasses having the same optical properties.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: December 5, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku Garasu Seizosho
    Inventors: Fujio Komorita, Muneo Nakahara
  • Optical glass
    Patent number: 4120732
    Abstract: An optical glass consisting essentially of a B.sub.2 O.sub.3 --La.sub.2 O.sub.3 --Gd.sub.2 O.sub.3 --WO.sub.3 --ZrO.sub.2 and/or Ta.sub.2 O.sub.5 system has high refractive and low dispersive characteristics with optical constants of 1.85-1.96 for Nd and 43-28 for .nu.d, is free of poisonous ThO.sub.2, CdO and BeO ingredients, and suitable for mass production.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: October 17, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku Garasu Seizosho
    Inventors: Fujio Komorita, Muneo Nakahara
  • Optical glass
    Patent number: 4119471
    Abstract: An optical glass consisting basically of a B.sub.2 O.sub.3 -- SiO.sub.2 -- La.sub.2 O.sub.3 -- ZrO.sub.2 -- TiO.sub.2 -- ZnO -- BaO system can be produced at a lower melting temperature and in a shorter melting time than it has heretofore been possible by replacing Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5 and WO.sub.3 used in the conventional optical glasses with ZnO.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: October 10, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku
    Inventors: Fujio Komorita, Muneo Nakahara
  • Optical glass
    Patent number: 4111707
    Abstract: An optical glass consisting essentially of a B.sub.2 O.sub.3 -SiO.sub.2 -La.sub.2 O.sub.3 -Gd.sub.2 O.sub.3 -Y.sub.2 O.sub.3 system and additionally containing ZrO.sub.2 has high refractive and low dispersive characteristics and is free of a poisonous thorium oxide ingredient.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: September 5, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku Garasu Seizosho
    Inventors: Fujio Komorita, Nobuhiro Nozawa, Satoshi Inoue