Fumikazu Murakami

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Chiba, JA

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic sonic generator for an alarm
- Patent number 4,090,041
- Issue date May 16, 1978
- Kabushiki Kaisha Daini Seikosha
- Shigeo Mori
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electronic buzzer
- Patent number 4,023,162
- Issue date May 10, 1977
- Kabushiki Kaisha Daini Seikosha
- Fumikazu Murakami
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL