Inventor
Kunio Hakamada
Inventor
Tokyo, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television73%
G06FElectric digital data processing13%
G11CStatic stores7%
H03JTuning resonant circuits7%
PatentTitleYear
5,883,669'Display device using electron beam and method of erasing display screen'19995,247,365'Channel-scanning picture-in-picture-in-picture television receiver'19935,099,326'Television receiver with operational mode for aging'19924,870,492'Television receiver having automatically programmable skip channel list'19894,845,564'Television receiver incorporating a video cassette recorder and capable of displaying a sub-channel picture within a main-channel picture'19894,777,531'Still sub-picture-in-picture television receiver'19884,774,582'Picture-in picture television receiver with step-by-step still picture control'19884,761,688'Television receiver'19884,750,040'Apparatus controlled by a micro-computer and including power loss data checking'19884,746,983'Picture-in-picture television receiver with separate channel display'19884,729,027'Picture-in-picture television receiver'19884,725,888'Picture-in-picture television receiver'19884,591,914'Apparatus for controlling power supply to electronic circuitry'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1999Patents assigned to SONY CORP (13)· patent assignee history
1986–1989Based in Tokyo, JP· patent location history
1992–1999Based in Saitama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 13 | 1986–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 1986–1989 |
| Saitama, JP | 3 | 1992–1999 |