Taku Katoh

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Kamakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Record medium, record medium manufacturing device, computer readabl...
- Patent number 7,233,667
- Issue date Jun 19, 2007
- Kabushiki Kaisha Toshiba
- Taku Katoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Multimedia adaptive scrambling system (MASS)
- Patent number 6,888,943
- Issue date May 3, 2005
- Verance Corporation
- Katherine S. Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
Access control for an information processing device
- Patent number 6,779,044
- Issue date Aug 17, 2004
- Kabushiki Kaisha Toshiba
- Taku Katoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark embedding device, digital watermark detection dev...
- Patent number 6,757,405
- Issue date Jun 29, 2004
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Copy-guard system and information recording medium used in the same...
- Patent number 6,556,679
- Issue date Apr 29, 2003
- Kabushiki Kaisha Toshiba
- Takehisa Kato
- G11 - INFORMATION STORAGE