Membership
Tour
Register
Log in
Isao Masuda
Follow
Person
Tokyo, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Single mode phosphate laser glass fiber
Patent number
4,871,230
Issue date
Oct 3, 1989
Hoya Corporation
Toshiharu Yamashita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Faraday rotation single-mode optical fiber
Patent number
4,726,652
Issue date
Feb 23, 1988
Hoya Corporation
Hidemi Tajima
G02 - OPTICS
Information
Patent Grant
Glass for photoetching mask
Patent number
4,403,043
Issue date
Sep 6, 1983
Hoya Corporation
Kenji Nakagaqa
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Alkali-free glass for photoetching mask
Patent number
4,391,916
Issue date
Jul 5, 1983
Hoya Corporation
Kenji Nakagawa
C03 - GLASS MINERAL OR SLAG WOOL