Inventor
Tatsuhiko Shimomura
Inventor
Tokyo, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography55%
LOC1630%
B41JTypewriters15%
PatentTitleYear
D0898820Toner cartridge2020D0898114Toner cartridge2020D0892921Toner cartridge202010,018,949Image forming apparatus20189,366,986'Development device and image formation apparatus'20168,918,026'Developer holding apparatus, developing unit that incorporates the developer holding apparatus, and image forming apparatus that employs the developer holding apparatus'2014D0674004'Toner cartridge'2013D0674007'Image drum cartridge'2013D0674005'Toner cartridge'20138,208,836'Developer holding apparatus, developing apparatus, and image forming apparatus'20128,041,265'Image forming unit with movable member and image forming apparatus'20117,983,602'Image forming apparatus and toner cartridge'20117,840,160'Toner cartridge with memory element, image drum unit with the toner cartridge, and image forming apparatus with the image drum unit'20107,801,468'Toner cartridge and mechanism for opening and closing a toner discharging opening'20107,689,149'Image forming apparatus and toner cartridge'20107,437,095'Image forming apparatus and toner cartridge'20087,218,872'Image forming apparatus'20075,674,015'Arrangement of actuators and tip ends in a wire dot print head'19975,167,458'Wire driving mechanism'19924,962,876'Method of producing a movable part of a wire-dot print head'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1997Patents assigned to OKI ELECTRIC IND CO LTD (3)· patent assignee history
1990–2020Based in Tokyo, JP· patent location history
2007–2020Patents assigned to OKI DATA KK (17)· patent assignee history
2012–2014Patents assigned to SHIMOMURA TATSUHIKO (5)· patent assignee history
2013Patents assigned to TERAMURA OSAMU (3)· patent assignee history
2013Patents assigned to USHIKUBO JUNICHI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OKI DATA KK | 17 | 2007–2020 |
| SHIMOMURA TATSUHIKOself | 5 | 2012–2014 |
| OKI ELECTRIC IND CO LTD | 3 | 1990–1997 |
| TERAMURA OSAMU | 3 | 2013 |
| USHIKUBO JUNICHI | 3 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 20 | 1990–2020 |