Yoshiyasu Oba

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vibrating element for ultrasonic injection
- Patent number 4,726,525
- Issue date Feb 23, 1988
- Toa Nenryo Kogyo Kabushiki Kaisha
- Yoshiaki Yonekawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS