Masato Ohtsubo

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Yotsukaido-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Indoor environment design system, indoor environment evaluation sys...
- Patent number 6,687,650
- Issue date Feb 3, 2004
- Nitto Boseki Co., LTD
- Hideyuki Hatanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Incombustible sound-absorbing electric radiation-absorbing ceiling...
- Patent number 6,299,727
- Issue date Oct 9, 2001
- Nitto Boseki Co., LTD
- Hideyuki Hatanaka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
Electromagnetic-wave absorber
- Publication number 20050008845
- Publication date Jan 13, 2005
- Hideyuki Hatanaka
- B32 - LAYERED PRODUCTS
Information Patent Application
Indoor environment design system, indoor environment evaluation sys...
- Publication number 20020023244
- Publication date Feb 21, 2002
- Hideyuki Hatanaka
- G01 - MEASURING TESTING