Katsumi Watanabe

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Variety playing sound reproducing device
- Patent number 4,433,404
- Issue date Feb 21, 1984
- Ozen Corporation
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Simplified sound reproducing device driven by a spring motor
- Patent number 4,408,310
- Issue date Oct 4, 1983
- Ozen Corporation
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Sound reproducing device
- Patent number 4,404,668
- Issue date Sep 13, 1983
- Ozen Corporation
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for electromagnetically imparting stylus force for sound...
- Patent number 4,373,199
- Issue date Feb 8, 1983
- Ozen Corporation
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Simplified record player
- Patent number 4,286,789
- Issue date Sep 1, 1981
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Sound reproducing device
- Patent number 4,252,326
- Issue date Feb 24, 1981
- Ozen Co., Ltd.
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Simplified motor assembly and related electrical connection in a _s...
- Patent number 4,195,843
- Issue date Apr 1, 1980
- Ozen Co., Ltd.
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Simplified structure of toy phonograph
- Patent number 4,157,832
- Issue date Jun 12, 1979
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Toy record player
- Patent number 4,150,831
- Issue date Apr 24, 1979
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Mechanism for causing returning movement of tone arm of toy phonograph
- Patent number 4,150,832
- Issue date Apr 24, 1979
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Phonograph for use with record cartridges
- Patent number 4,123,065
- Issue date Oct 31, 1978
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Vibration transmission mechanism for a phonograph
- Patent number 4,118,038
- Issue date Oct 3, 1978
- Yugen Kaisha Watanabe Kenkusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Switch mechanism for simple phonograph
- Patent number 4,107,489
- Issue date Aug 15, 1978
- Yugen Kaisha Watanabe Kenkyusho
- Katsumi Watanabe
- G11 - INFORMATION STORAGE

Katsumi Watanabe

Person

Patents Grantslast 30 patents

Variety playing sound reproducing device

Simplified sound reproducing device driven by a spring motor

Sound reproducing device

Apparatus for electromagnetically imparting stylus force for sound...

Simplified record player

Sound reproducing device

Simplified motor assembly and related electrical connection in a _s...

Simplified structure of toy phonograph

Toy record player

Mechanism for causing returning movement of tone arm of toy phonograph

Phonograph for use with record cartridges

Vibration transmission mechanism for a phonograph

Switch mechanism for simple phonograph