Inventor
Ikuo Umeda
Inventor
Nara, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters100%
PatentTitleYear
4,401,990'Nozzle cleaning device in an ink jet system printer'19834,288,796'Phase detection in an ink jet system printer of the charge amplitude controlling type'19814,185,930'Print position control in a printer including a printer head mounted on a traveling carriage'19804,115,788'Compound matrix formation in an ink jet system printer'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1978Based in Kitakatsuragi-gun, JP· patent location history
1980–1983Patents assigned to SHARP KK (3)· patent assignee history
1980–1983Based in Nara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHARP KK | 3 | 1980–1983 |
| NIPPON TELEGRAPH & TELEPHONE | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nara, JP | 3 | 1980–1983 |
| Kitakatsuragi-gun, JP | 1 | 1978 |