Inventor
Atsushi Tobari
Inventor
Fujisawa, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer90%
G06FElectric digital data processing10%
PatentTitleYear
7,982,991'Method and apparatus for determining set value of write current of magnetic head'20117,426,086'Off track write protection for data storage device'20087,333,282'Data storage device and data storage device control method'20087,173,782'Magnetic disk drive and refresh method'20076,424,493'Hard disk drive magnetic head air bearing surface design for preventing particulate contamination thereon'20026,219,750'Disk drive having control mechanism to reduce or eliminate redundant write operations and the method thereof'20016,061,805'Method for executing an error recovery procedure'20005,969,895'Disk drive apparatus and head switching method in a disk drive apparatus'19995,313,352'Magnetic disk slider having piezo-electric vibration elements'19945,117,320'Magnetostrictive head with d.c. bias magnetic field'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2002Patents assigned to IBM (6)· patent assignee history
1992–2002Based in Fujisawa, JP· patent location history
2007–2008Patents assigned to HITACHI GLOBAL STORAGE TECH (3)· patent assignee history
2007–2011Based in Kanagawa, JP· patent location history
2011Patents assigned to HITACHI GLOBAL STORAGE TECH NL (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 6 | 1992–2002 |
| HITACHI GLOBAL STORAGE TECH | 3 | 2007–2008 |
| HITACHI GLOBAL STORAGE TECH NL | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fujisawa, JP | 6 | 1992–2002 |
| Kanagawa, JP | 4 | 2007–2011 |