Yoshiya Nakamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sound absorbing material and its manufacturing method
- Patent number 6,911,158
- Issue date Jun 28, 2005
- Ishikawajima-Harima Heavy Industries Co., Ltd.
- Tsutomu Oishi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Porous sound absorbing material and method of manufacturing the mat...
- Publication number 20030183799
- Publication date Oct 2, 2003
- Tsutomu Oishi
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...