Inventor
Shigehiko Fujimaki
Inventor
Machida, 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 transducer50%
C23CCoating metallic material10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Y10TTechnical subjects covered by former us classification10%
B05DProcesses for applying fluent materials to surfaces, in general5%
C10MLubricating compositions5%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions5%
H01JElectric discharge tubes or discharge lamps5%
PatentTitleYear
7,943,193'Magnetic recording medium with diamond-like carbon protective film, and manufacturing method thereof'20117,718,282'Magnetic recording medium with corrosion resistance and manufacturing method'20107,551,398'Magnetic head with air bearing surface protection film and manufacturing method thereof'20097,147,943'Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same'20067,045,175'Magnetic recording medium and method for manufacturing the same'20066,949,301'Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same'20056,706,363'Magnetic recording medium, its production method and magnetic storage device using the medium'20045,651,867'Plasma processing method and apparatus'19975,409,738'Recording medium'19955,104,709'Magnetic recording medium which includes a protective layer, an adhesion strengthening substance and a lubricant layer'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2006Patents assigned to HITACHI LTD (5)· patent assignee history
1992–2006Based in Machida, JP· patent location history
2005–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (4)· patent assignee history
2009–2011Based in Tokyo, 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 |
|---|---|---|
| HITACHI LTD | 5 | 1992–2006 |
| HITACHI GLOBAL STORAGE TECH | 4 | 2005–2010 |
| HITACHI GLOBAL STORAGE TECH NL | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Machida, JP | 7 | 1992–2006 |
| Tokyo, JP | 3 | 2009–2011 |