Yutaka Hamada

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Namerikawa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Internally illuminated sign
- Patent number 7,584,564
- Issue date Sep 8, 2009
- Nippon Carbide Kogyo Kabushiki Kaisha
- Akihiro Matsuda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Triangular-pyramidal cube-corner retro-reflective sheeting
- Patent number 6,942,350
- Issue date Sep 13, 2005
- Nippon Carbide Kogyo Kabushiki Kaisha
- Ikuo Mimura
- G02 - OPTICS
Information Patent Grant
Retroreflection device
- Patent number 6,883,921
- Issue date Apr 26, 2005
- Nippon Carbide Kogyo Kabushiki Kaisha
- Ikuo Mimura
- G02 - OPTICS
Information Patent Grant
Triangular pyramidal cube corner retroreflection element
- Patent number 6,817,724
- Issue date Nov 16, 2004
- Nippon Carbide Kogyo Kabushiki Kaisha
- Ikuo Mimura
- G02 - OPTICS
Information Patent Grant
Triangular-pyramidal cube-corner retro-reflective sheeting
- Patent number 6,318,866
- Issue date Nov 20, 2001
- Nippon Carbide Kogyo Kabushiki Kaisha
- Ikuo Mimura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Internally illuminated sign
- Publication number 20060021267
- Publication date Feb 2, 2006
- Akihiro Matsuda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Retroreflection device
- Publication number 20050018292
- Publication date Jan 27, 2005
- Ikuo Mimura
- G02 - OPTICS
Information Patent Application
Triangular-pyramidal cube-corner retro-reflective sheeting
- Publication number 20040196555
- Publication date Oct 7, 2004
- NIPPON CARBIDE KOGYO KABUSHIKI KAISHA
- Ikuo Mimura
- G02 - OPTICS
Information Patent Application
Triangular-pyramidal cube-corner retro-reflective sheeting
- Publication number 20030184866
- Publication date Oct 2, 2003
- NIPPON CARBIDE KOGYO KABUSHIKI KAISHA
- Ikuo Mimura
- G02 - OPTICS
Information Patent Application
Triangular pyramidal cube corner retroreflection element
- Publication number 20030021029
- Publication date Jan 30, 2003
- Ikuo Mimura
- G02 - OPTICS
Information Patent Application
Triangular-pyramidal cube-corner retro-reflective sheeting
- Publication number 20020051292
- Publication date May 2, 2002
- Ikuo Mimura
- G02 - OPTICS