Masakatsu Tsumura

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Shijonawate, JP

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Patents Grantslast 30 patents

Information Patent Grant
Band-pass filter having multilayered coil structures
- Patent number 4,422,059
- Issue date Dec 20, 1983
- Matsushita Electric Industrial Co., Ltd.
- Tsuneharu Fuji
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Helical resonator band pass filter with novel coupling means
- Patent number 4,210,884
- Issue date Jul 1, 1980
- Matsushita Electric Industrial Co., Ltd.
- Toshihide Tabuchi
- H01 - BASIC ELECTRIC ELEMENTS