Ryuji Kusumi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Door opening and closing mechanism provided at the front of an appa...
- Patent number 8,230,453
- Issue date Jul 24, 2012
- Sony Corporation
- Ryuji Kusumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc type recording/reproduction device
- Patent number 7,370,338
- Issue date May 6, 2008
- Sony Corporation
- Yoichiro Mitsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and reproduction apparatus
- Patent number 6,690,528
- Issue date Feb 10, 2004
- Sony Corporation
- Ryuji Kusumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Cassette deck mechanism for mounting/discharging different size cas...
- Patent number 6,563,667
- Issue date May 13, 2003
- Sony Corporation
- Seiya Hamabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and/or reproducing apparatus having a slider means for br...
- Patent number 5,433,396
- Issue date Jul 18, 1995
- Sony Corporation
- Ryuji Kusumi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
DOOR OPENING AND CLOSING MECHANISM AND RECORDING AND/OR PLAYBACK AP...
- Publication number 20100218203
- Publication date Aug 26, 2010
- SONY CORPORATION
- Ryuji Kusumi
- G11 - INFORMATION STORAGE
Information Patent Application
Disc type recording/reproduction device
- Publication number 20060294531
- Publication date Dec 28, 2006
- SONY CORPORATION
- Yoichiro Mitsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Disc type recording/reproduction device
- Publication number 20060294530
- Publication date Dec 28, 2006
- SONY CORPORATION
- Yoichiro Mitsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Disc type recording/reproduction device
- Publication number 20040066712
- Publication date Apr 8, 2004
- Yoichiro Mitsumoto
- G11 - INFORMATION STORAGE