Keiji Iijima

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ultrasonic probe having a backing member of microballoons in uretha...
- Patent number 4,571,520
- Issue date Feb 18, 1986
- Matsushita Electric Industrial Co. Ltd.
- Koetsu Saito
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL