Tokuichi Minakawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic recording current controller of magnetic recorder
- Patent number 5,636,076
- Issue date Jun 3, 1997
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing device with selective line noise...
- Patent number 5,446,539
- Issue date Aug 29, 1995
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic recording/reproducing apparatus including a switch for sel...
- Patent number 5,416,641
- Issue date May 16, 1995
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic recording apparatus having improved detail emphasis circuit
- Patent number 5,400,149
- Issue date Mar 21, 1995
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic recording and reproducing apparatus
- Patent number 5,257,109
- Issue date Oct 26, 1993
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise canceller for use in a magnetic reproducing apparatus
- Patent number 5,249,064
- Issue date Sep 28, 1993
- Akai Electric Co., Ltd.
- Tokuichi Minakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE