Inventor
Masamitsu Ohtsu
Inventor
Kadoma, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television53%
G11BInformation storage based on relative movement between record carrier and transducer41%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
5,481,412'Video signal digital recording/reproducing apparatus'19965,457,579'Apparatus for recording each editing unit of video and audio signals in an isolated area on a recording medium'19955,383,063'Video signal digital recording/reproducing apparatus'19955,293,277'Digital signal magnetic recording apparatus with time-division multiplex signal transmission to a rotary cylinder'19944,884,151'Recording and/or reproducing apparatus with photo-electric image device'19894,809,087'Apparatus for recording a discriminative signal'19894,544,966'Tracking control system using intermittently recorded pilot signals'19854,400,742'Magnetic recording and reproducing apparatus for color video signals'19834,390,906'Magnetic recording and/or reproducing system for television and audio signal'19834,303,950'Helical scan video tape recorder for recording video and audio signals on contiguous tracks'19814,245,262'Dropout compensating device'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1996Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (10)· patent assignee history
1981–1989Based in Kadoma, JP· patent location history
1989Patents assigned to MATSUSHITA ELECTRIC INDUCTRIAL (1)· patent assignee history
1994–1996Based in Moriguchi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 10 | 1981–1996 |
| MATSUSHITA ELECTRIC INDUCTRIAL | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kadoma, JP | 7 | 1981–1989 |
| Moriguchi, JP | 4 | 1994–1996 |