Yasuo Nakajima

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Osaka, JA

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric ceramic resonator with vibration damping means
- Patent number 4,041,335
- Issue date Aug 9, 1977
- Matsushita Electric Industrial Co., Ltd.
- Takashi Nagata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Elastic surface wave devices and method for making the same
- Patent number 4,028,646
- Issue date Jun 7, 1977
- Matsushita Electric Industrial Co., Ltd.
- Hiroshi Ikushima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency discriminating apparatus
- Patent number 4,013,970
- Issue date Mar 22, 1977
- Matsushita Electric Industrial Co., Ltd.
- Takashi Nagata
- H03 - BASIC ELECTRONIC CIRCUITRY