Kyoji Fujiwara

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sound absorbing body, sound absorbing board, and sound absorbing unit
- Patent number 6,035,965
- Issue date Mar 14, 2000
- Nitto Boseki Co., Ltd.
- Kyoji Fujiwara
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Sound absorbing body, sound absorbing plate, and sound absorbing unit
- Patent number 5,854,453
- Issue date Dec 29, 1998
- Nitto Boseki Co., Ltd.
- Kyoji Fujiwara
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Light transmissive sound absorbing member
- Patent number 5,532,440
- Issue date Jul 2, 1996
- Nitto Boseki Co., Ltd.
- Kyoji Fujiwara
- G10 - MUSICAL INSTRUMENTS ACOUSTICS