Kohei Fukumi

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Ikeda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical glass
- Patent number 8,404,604
- Issue date Mar 26, 2013
- Nihon Yamamura Glass Co., Ltd.
- Tatsuo Hidaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical glass
- Patent number 8,298,974
- Issue date Oct 30, 2012
- Nihon Yamamura Glass Co, Ltd.
- Tatsuo Hidaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for production of SiO.sub.2 glass material having regions ch...
- Patent number 5,763,340
- Issue date Jun 9, 1998
- Agency of Industrial Science & Technology, Ministry of International Trade &...
- Junji Nishii
- G02 - OPTICS
Information Patent Grant
Glass having refractive index distribution
- Patent number 5,392,375
- Issue date Feb 21, 1995
- Agency of Industrial Science and Technology
- Naoyuki Kitamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing rod glass having refractive index distribution
- Patent number 5,261,938
- Issue date Nov 16, 1993
- Agency of Industrial Science and Technology
- Naoyuki Kitamura
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL GLASS
- Publication number 20110172078
- Publication date Jul 14, 2011
- Tatsuo Hidaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
OPTICAL GLASS
- Publication number 20100317504
- Publication date Dec 16, 2010
- National Institute of Advanced Industrial Sciences and Technology
- Tatsuo Hidaka
- G02 - OPTICS