Katsumi Toyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Memory card drive and portable memory card drive
- Patent number 7,233,489
- Issue date Jun 19, 2007
- Sony Corporation
- Katsumi Toyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical recording medium having first and second recording areas of...
- Patent number 6,829,211
- Issue date Dec 7, 2004
- Sony Corporation
- Yoichiro Sako
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording medium, data recording apparatus and method, and dat...
- Patent number 6,804,188
- Issue date Oct 12, 2004
- Sony Corporation
- Yukio Shishido
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical storage medium having two recording areas of different formats
- Patent number 6,707,784
- Issue date Mar 16, 2004
- Sony Corporation
- Yoichiro Sako
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk having expanded elapsed time information
- Patent number 6,657,938
- Issue date Dec 2, 2003
- Sony Corporation
- Yoichiro Sako
- G11 - INFORMATION STORAGE
Information Patent Grant
Data record medium, data recording and/or reproducing apparatus, an...
- Patent number 6,519,217
- Issue date Feb 11, 2003
- Sony Corporation
- Tetsuji Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording apparatus that identifies the type of data in each b...
- Patent number 6,226,247
- Issue date May 1, 2001
- Sony Corporation
- Yoichiro Sako
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Memory card drive and portable memory card drive
- Publication number 20020078297
- Publication date Jun 20, 2002
- Katsumi Toyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data record medium, data recording method, data recording apparatus...
- Publication number 20020051409
- Publication date May 2, 2002
- Yoichiro Sako
- G11 - INFORMATION STORAGE
Information Patent Application
Data record medium, data recording method, data recording apparatus...
- Publication number 20020048228
- Publication date Apr 25, 2002
- Yoichiro Sako
- G11 - INFORMATION STORAGE