TREA

Sumita Optical Glass Mfg. Co., Ltd.

Follow

Organization

  • Tokyo, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Fluorophosphate optical glass
    • Patent number 4,808,556
    • Issue date Feb 28, 1989
    • Sumita Optical Glass Mfg. Co., Ltd.
    • Naruhito Sawanobori
    • C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Trademarklast 30 trademarks