Inventor
Kumiko Ojima
Inventor
Mito, JP
Overview
Patents· 5 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 transducer29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests29%
Y10TTechnical subjects covered by former us classification29%
H01RElectrically-conductive connections7%
H02KDynamo-electric machines7%
PatentTitleYear
11,088,583Rotary-electric-machine stator coil, rotary-electric-machine stator having the same, and rotary electric machine having the same20214,794,040'Magnetic recording medium having a back coat layer containing carbon black having defined ranges of pH and coloring power'19884,770,932'Magnetic recording medium having an improved back coat layer'19884,761,331'Magnetic recording medium having a back coat layer containing carbon black treated with fatty acids'19884,645,724'Magnetic recording medium comprising a specific type of lubricant'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1988Patents assigned to VICTOR COMPANY OF JAPAN (4)· patent assignee history
1987–1988Based in Mito, JP· patent location history
2021Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (1)· patent assignee history
2021Based in Hitachinaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VICTOR COMPANY OF JAPAN | 4 | 1987–1988 |
| HITACHI AUTOMOTIVE SYSTEMS LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mito, JP | 4 | 1987–1988 |
| Hitachinaka, JP | 1 | 2021 |