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Fukuoka, JP
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Patents Grants
last 30 patents
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Patent Grant
Selenium-containing transparent optical material
Patent number
6,664,364
Issue date
Dec 16, 2003
Mitsui Chemicals, Inc.
Koju Okazaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Selenium-containing transparent optical material
Patent number
6,482,918
Issue date
Nov 19, 2002
Mitsui Chemicals, Inc.
Koju Okazaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Selenium-containing transparent optical material
Patent number
6,303,747
Issue date
Oct 16, 2001
Mitsui Chemicals, Inc.
Koju Okazaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selenized transparent optical material
Patent number
6,124,424
Issue date
Sep 26, 2000
Mitsui Chemicals, Inc.
Koju Okazaki
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Selenium-containing transparent optical material
Publication number
20030166830
Publication date
Sep 4, 2003
Koju Okazaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Selenium-containing transparent optical material
Publication number
20020120097
Publication date
Aug 29, 2002
Koju Okazaki
C07 - ORGANIC CHEMISTRY