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Hiroyuki Sawada
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Akishima-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing glass optical elements
Patent number
6,823,694
Issue date
Nov 30, 2004
Hoya Corporation
Hiroyuki Sawada
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing glass optical elements
Patent number
6,766,661
Issue date
Jul 27, 2004
Hoya Corporation
Hiroyuki Sawada
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Mold for producing glass articles
Patent number
5,125,949
Issue date
Jun 30, 1992
Hoya Corporation
Shinichiro Hirota
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for producing glass mold
Patent number
4,948,627
Issue date
Aug 14, 1990
Hoya Corporation
Chiemi Hata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Patents Applications
last 30 patents
Information
Patent Application
Methods of manufacturing molded glass articles
Publication number
20050172671
Publication date
Aug 11, 2005
HOYA CORPORATION
Yasuhiro Yoneda
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method of manufacturing optical elements
Publication number
20050076678
Publication date
Apr 14, 2005
Hoya Corporation
Hiroyuki Sawada
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method of manufacturing glass optical elements
Publication number
20020059812
Publication date
May 23, 2002
HOYA CORPORATION
Hiroyuki Sawada
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method of manufacturing glass optical elements
Publication number
20020053222
Publication date
May 9, 2002
HOYA CORPORATION
Hiroyuki Sawada
C03 - GLASS MINERAL OR SLAG WOOL