Inventor
Ryoji Oohashi
Inventor
Yokohama, JP
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters94%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
10,889,113Recording element board, liquid ejection apparatus and method of manufacturing recording element board202110,500,851Print element substrate, printhead, and printing apparatus20199,950,525Element substrate for liquid ejecting head and wafer20189,833,992Recording-element substrate, recording head, and recording apparatus20178,943,690'Method for manufacturing substrate for liquid ejection head and method for manufacturing liquid ejection head'20158,876,242'Liquid ejection head'20148,608,276'Liquid discharge head and ink jet recording apparatus including liquid discharge head'20138,534,796'Liquid-discharging recording head'20138,439,485'Substrate including a detection feature for liquid discharge head and liquid discharge head'20138,246,147'Inkjet printhead substrate, method for manufacturing inkjet printhead substrate, inkjet print head, and inkjet recording apparatus'20128,235,481'Inkjet recording head and recording apparatus'20128,235,486'Recording element substrate, recording head including the same, and recording head cartridge'20128,109,593'Substrate for inkjet head and inkjet head using the same'20128,096,644'Liquid ejection head and liquid ejection method'20128,083,317'Liquid-discharging recording head'20118,070,263'Printing head substrate, ink jet printing head and ink jet printing apparatus with substrate temperature detecting element'20118,066,347'Recording element substrate, recording head, and ink jet recording apparatus having the recording head'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2021Patents assigned to CANON KK (17)· patent assignee history
2011–2015Patents assigned to OOHASHI RYOJI (13)· patent assignee history
2011–2015Patents assigned to IMANAKA YOSHIYUKI (12)· patent assignee history
2011–2015Patents assigned to KUBO KOUSUKE (10)· patent assignee history
2011–2015Patents assigned to OMATA KOICHI (10)· patent assignee history
2011–2021Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 17 | 2011–2021 |
| OOHASHI RYOJIself | 13 | 2011–2015 |
| IMANAKA YOSHIYUKI | 12 | 2011–2015 |
| KUBO KOUSUKE | 10 | 2011–2015 |
| OMATA KOICHI | 10 | 2011–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 17 | 2011–2021 |