Naoki Tatsumi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Personal verification device
- Patent number 8,479,274
- Issue date Jul 2, 2013
- Mitsumi Electric Co., Ltd.
- Kenichi Furukawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Guide roller including a pair of bearing having bearings flanges fo...
- Patent number 7,240,872
- Issue date Jul 10, 2007
- Mitsumi Electric Co., Ltd.
- Hiromi Inoguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape recording and reproduction apparatus capable of stable operati...
- Patent number 6,922,306
- Issue date Jul 26, 2005
- Mitsumi Electric Co., Ltd.
- Nobutaka Tsuneyoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproduction apparatus including gear mechanism
- Patent number 6,885,516
- Issue date Apr 26, 2005
- Mitsumi Electric Co., Ltd.
- Nobutaka Tsuneyoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape recording/reproducing apparatus having a tape guide p...
- Patent number 6,678,111
- Issue date Jan 13, 2004
- Mitsumi Electric Co., Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Roller shaft
- Patent number 6,634,535
- Issue date Oct 21, 2003
- Mitsumi Electric Co., Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Chucking confirming method
- Patent number 6,592,063
- Issue date Jul 15, 2003
- Mitsumi Electric Co., Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Capstan shaft cleaning device
- Patent number 6,481,045
- Issue date Nov 19, 2002
- Mitsumi Electric Co., Ltd.
- Kazuya Tamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording/reproduction apparatus
- Patent number 6,417,984
- Issue date Jul 9, 2002
- Mitsumi Electric Co., Ltd.
- Kazuya Tamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape recording/reproducing apparatus
- Patent number 6,404,583
- Issue date Jun 11, 2002
- Mitsumi Electric Co., Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape recording/reproducing apparatus
- Patent number 6,398,095
- Issue date Jun 4, 2002
- Mitsumi Electric Co., Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape recording/reproducing apparatus with a cam to detect...
- Patent number 6,369,976
- Issue date Apr 9, 2002
- Mitsumi Electric Co., Ltd.
- Masahiro Harima
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
PERSONAL VERIFICATION DEVICE
- Publication number 20120028710
- Publication date Feb 2, 2012
- Kenichi Furukawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Recording and/or reproducing device having an ejection amount adjus...
- Publication number 20060238910
- Publication date Oct 26, 2006
- Mitsumi Electric Co. Ltd.
- Kouji Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Application
Guide roller including a pair of bearings having bearing flanges fo...
- Publication number 20060231661
- Publication date Oct 19, 2006
- Mitsumi Electric Co. Ltd.
- Hiromi Inoguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Tape recording and reproduction apparatus capable of stable operati...
- Publication number 20040061971
- Publication date Apr 1, 2004
- MITSUMI ELECTRIC CO., LTD.
- Nobutaka Tsuneyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording and reproduction apparatus including gear mechanism
- Publication number 20030235003
- Publication date Dec 25, 2003
- MITSUMI ELECTRIC CO., LTD.
- Nobutaka Tsuneyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Intermittent gear member, intermittent gear mechanism, and magnetic...
- Publication number 20030235004
- Publication date Dec 25, 2003
- MITSUMI ELECTRIC CO., LTD.
- Nobutaka Tsuneyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Roller shaft
- Publication number 20030062393
- Publication date Apr 3, 2003
- Mitsumi Electric Co. Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE
Information Patent Application
Chucking confirming method
- Publication number 20030062437
- Publication date Apr 3, 2003
- Mitsumi Electric Co. Ltd.
- Naoki Tatsumi
- G11 - INFORMATION STORAGE

Naoki Tatsumi

Person

Patents Grantslast 30 patents

Personal verification device

Guide roller including a pair of bearing having bearings flanges fo...

Tape recording and reproduction apparatus capable of stable operati...

Magnetic recording and reproduction apparatus including gear mechanism

Magnetic tape recording/reproducing apparatus having a tape guide p...

Roller shaft

Chucking confirming method

Capstan shaft cleaning device

Magnetic recording/reproduction apparatus

Magnetic tape recording/reproducing apparatus

Magnetic tape recording/reproducing apparatus

Magnetic tape recording/reproducing apparatus with a cam to detect...

Patents Applicationslast 30 patents

PERSONAL VERIFICATION DEVICE

Recording and/or reproducing device having an ejection amount adjus...

Guide roller including a pair of bearings having bearing flanges fo...

Tape recording and reproduction apparatus capable of stable operati...

Magnetic recording and reproduction apparatus including gear mechanism

Intermittent gear member, intermittent gear mechanism, and magnetic...

Roller shaft

Chucking confirming method