Inventor
Tsutomu Kempo
Inventor
Hino, 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 transducer30%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests30%
Y10TTechnical subjects covered by former us classification30%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
PatentTitleYear
5,134,027'Magnetic recording medium'19925,098,785'Magnetic recording medium containing a copolymer having an anionic functional group which forms an intermolecular salt'19925,064,720'Magnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular salt'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1992Patents assigned to KONISHIROKU PHOTO IND (3)· patent assignee history
1991Based in Tokyo, JP· patent location history
1992Based in Hino, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONISHIROKU PHOTO IND | 3 | 1991–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hino, JP | 2 | 1992 |
| Tokyo, JP | 1 | 1991 |