Yusuke Tokunaga

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Disk drive spindle motor with core support having angled sloping pa...
- Patent number 8,810,959
- Issue date Aug 19, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Yusuke Tokunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive device with hub having improved impact resistance where hub m...
- Patent number 8,390,953
- Issue date Mar 5, 2013
- Alphana Technology Co., Ltd.
- Yusuke Tokunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with hub having a rotational frequency of axial r...
- Patent number 8,184,396
- Issue date May 22, 2012
- Alphana Technology Co., Ltd.
- Yusuke Tokunaga
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
ROTATING DEVICE
- Publication number 20140146416
- Publication date May 29, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Yusuke TOKUNAGA
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE WITH HUB HAVING A ROTATIONAL FREQUENCY OF AXIAL R...
- Publication number 20120176879
- Publication date Jul 12, 2012
- ALPHANA Technology Co., Ltd.
- Yusuke Tokunaga
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE WITH IMPROVED SHOCK RESISTANCE
- Publication number 20110051287
- Publication date Mar 3, 2011
- ALPHANA Technology Co., Ltd.
- Yusuke Tokunaga
- G11 - INFORMATION STORAGE