Inventor
Masanori Isshiki
Inventor
Yokohama, JP
Overview
Patents· 7 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 transducer64%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
H04NPictorial communication, e.g. television9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
5,545,462'Magnetic recording medium'19965,217,820'High density slave magnetic recording media having specified perpendicular squareness rectangular ratio, roughness and number of projections'19935,032,931'Method for magnetic transfer and apparatus therefor'19914,719,520'Method and apparatus for setting recording current in perpendicular magnetic recording apparatus'19884,622,616'Thin film magnetic head for equalizing outputs of a two-channel tracking device'19864,571,653'Perpendicular magnetic recording head'19864,383,284'Perpendicular magnetic head and method of manufacturing the same'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1986Patents assigned to TOKYO SHIBAURA ELECTRIC CO (2)· patent assignee history
1983–1996Based in Yokohama, JP· patent location history
1986–1996Patents assigned to TOSHIBA KK (5)· patent assignee history
1996Patents assigned to KONISHIROKU PHOTO IND (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 5 | 1986–1996 |
| TOKYO SHIBAURA ELECTRIC CO | 2 | 1983–1986 |
| KONISHIROKU PHOTO IND | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 7 | 1983–1996 |