Inventor
Masaaki Matsukawa
Inventor
Yokohama, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television67%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them33%
PatentTitleYear
7,916,214'Picture display system for adjusting image quality of a picture signal having higher number of scanning lines'20117,512,321'Video recording/playback system and method for generating video data capable of providing information for substituting an advertisement thereby'20094,914,473'Multiple-exposure apparatus in a graphic arts copying machine of a slit-exposure type'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Patents assigned to DAINIPPON SCREEN MFG (1)· patent assignee history
1990Based in Hikone, JP· patent location history
2009–2011Patents assigned to HITACHI LTD (2)· patent assignee history
2009–2011Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 2 | 2009–2011 |
| DAINIPPON SCREEN MFG | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 2 | 2009–2011 |
| Hikone, JP | 1 | 1990 |