Inventor
Takashi Naitoh
Inventor
Hitachi, JP
Overview
Patents· 3 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 transducer43%
C03CChemical composition of glasses, glazes or vitreous enamels29%
C22CAlloys14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
5,519,555'Magnetic head including PbO-V.sub.2 O.sub.5 -P.sub.2 O.sub.5 system glass bonding'19964,816,949'Magnetic head containing amorphous alloy and crystallizable glass'19894,794,483'Magnetic head having layers of amorphous magnetic alloy bonded together with a glass containing vandium oxide phosphorus oxide and antimony oxide'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1996Patents assigned to HITACHI LTD (3)· patent assignee history
1988–1996Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 3 | 1988–1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 3 | 1988–1996 |