Inventor
Yasuo Ishizaka
Inventor
Yokohama, JP
Overview
Patents· 8 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 transducer24%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
H04NPictorial communication, e.g. television18%
Y10TTechnical subjects covered by former us classification18%
G02BOptical elements, systems or apparatus6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
G09GArrangements or circuits for control of indicating devices using static means to present variable information6%
PatentTitleYear
8,373,692'Light modulator, projection display apparatus and image projection method'20138,026,986'Projection type display device'20117,198,371'Image displaying apparatus'20076,174,060'Projection-type display apparatus having polarized beam splitters and an illuminating device'20014,798,765'Perpendicular magnetic recording medium'19894,792,486'Perpendicular magnetic recording medium'19884,745,510'Perpendicular magnetic recording and reproducing system'19884,731,300'Perpendicular magnetic recording medium and manufacturing method thereof'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2011Patents assigned to VICTOR COMPANY OF JAPAN (7)· patent assignee history
1988–2013Based in Yokohama, JP· patent location history
2011Based in Kanagawa, JP· patent location history
2013Patents assigned to FUKUZAKI YOSHIO (1)· patent assignee history
2013Patents assigned to FURUYA MASATO (1)· patent assignee history
2013Patents assigned to HAMAGUCHI AKIHIRO (1)· patent assignee history
2013Patents assigned to ISHIZAKA YASUO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VICTOR COMPANY OF JAPAN | 7 | 1988–2011 |
| FUKUZAKI YOSHIO | 1 | 2013 |
| FURUYA MASATO | 1 | 2013 |
| HAMAGUCHI AKIHIRO | 1 | 2013 |
| ISHIZAKA YASUOself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 7 | 1988–2013 |
| Kanagawa, JP | 1 | 2011 |