Inventor
Nagatugu Koiso
Inventor
Tama, JP
Overview
11→
Patents
1981–2006
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification23%
G11BInformation storage based on relative movement between record carrier and transducer21%
H01FMagnets18%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
B82YSpecific uses or applications of nanostructures10%
C23CCoating metallic material8%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%
PatentTitleYear
7,050,253'Magnetic recording media and magnetic storage apparatus using the same'20066,574,060'Magnetic storage apparatus'20036,221,508'Magnetic recording media'20016,033,792'Soft magnetic thin film, and magnetic head and magnetic recording device using the same'20005,962,153'Soft magnetic thin film, and magnetic head and magnetic recording apparatus using the film'19995,873,955'Soft magnetic thin film, and magnetic head and magnetic recording device using the same'19995,858,548'Soft magnetic thin film, and magnetic head and magnetic recording device using the same'19995,290,629'Magnetic film having a magnetic phase with crystallites of 200 A or less and an oxide phase present at the grain boundaries'19944,460,412'Method of making magnetic bubble memory device by implanting hydrogen ions and annealing'19844,288,283'Method of forming a microscopic pattern'19814,262,054'Magnetic bubble memory device'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–2003Patents assigned to HITACHI LTD (10)· patent assignee history
1981–2006Based in Tama, JP· patent location history
1999Based in Tokyo, JP· patent location history
2006Patents assigned to HITACHI GLOBAL STORAGE TECH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 10 | 1981–2003 |
| HITACHI GLOBAL STORAGE TECH | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tama, JP | 10 | 1981–2006 |
| Tokyo, JP | 1 | 1999 |