Sachiko Ichikawa

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium
- Patent number 5,158,859
- Issue date Oct 27, 1992
- Canon Kabushiki Kaisha
- Hiroyuki Imatake
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 5,026,623
- Issue date Jun 25, 1991
- Canon Kabushiki Kaisha
- Hiroyuki Imataki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 4,965,153
- Issue date Oct 23, 1990
- Canon Kabushiki Kaisha
- Hiroyuki Imataki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and optical recording method using the same
- Patent number 4,871,649
- Issue date Oct 3, 1989
- Canon Kabushiki Kaisha
- Hiroyuki Imataki
- G11 - INFORMATION STORAGE