Mitsuru Ohgake

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for optically recording information according to a strategy...
- Patent number 7,254,102
- Issue date Aug 7, 2007
- Ricoh Company, Ltd.
- Mitsuru Ohgake
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium having a plurality of sections storing root direct...
- Patent number 7,092,949
- Issue date Aug 15, 2006
- Ricoh Company, Ltd.
- Mitsuru Ohgake
- G11 - INFORMATION STORAGE
Information Patent Grant
Record medium with mechanism of secrecy protection
- Patent number 7,006,416
- Issue date Feb 28, 2006
- Ricoh Company, Ltd.
- Mitsuru Ohgake
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Record medium and method of controlling access to record medium
- Patent number 6,751,625
- Issue date Jun 15, 2004
- Ricoh Company, Ltd.
- Mitsuru Ohgake
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
IMAGE DISPLAY APPARATUS
- Publication number 20140035928
- Publication date Feb 6, 2014
- Mitsuru OHGAKE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for optically recording information and computer-readable re...
- Publication number 20020021638
- Publication date Feb 21, 2002
- Mitsuru Ohgake
- G11 - INFORMATION STORAGE
Information Patent Application
Record medium and method of controlling access to record medium
- Publication number 20010044887
- Publication date Nov 22, 2001
- Mitsuru Ohgake
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Recording medium having a plurality of sections storing root direct...
- Publication number 20010018688
- Publication date Aug 30, 2001
- Mitsuru Ohgake
- G11 - INFORMATION STORAGE