Takayoshi Ishikawa

Follow

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a filter by forming strip lines on a substr...
- Patent number 5,832,578
- Issue date Nov 10, 1998
- Matsushita Electric Industrial Co., Ltd.
- Naoki Yuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stripline resonator filter including cooperative conducting cap and...
- Patent number 5,489,881
- Issue date Feb 6, 1996
- Matsushita Electric Industrial Co., Ltd.
- Naoki Yuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Trap circuit with two variable inductors
- Patent number 4,795,990
- Issue date Jan 3, 1989
- Matsushita Electric Industrial Co., Ltd.
- Takayoshi Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
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