Harukazu Matuyama

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Takahama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for making axial-flow filters and apparatus therefor
- Patent number 4,767,394
- Issue date Aug 30, 1988
- Nippondenso Co., Ltd.
- Yuuji Ito
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Method for making axial-flow filters and apparatus therefor
- Patent number 4,659,323
- Issue date Apr 21, 1987
- Nippondenso Co., Ltd.
- Yuuji Ito
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD