Inventor
Hiroki Nakamatsu
Inventor
Kanagawa, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography100%
PatentTitleYear
11,112,734Belt device, belt regulator, roller unit, and image forming apparatus202110,955,771Belt control device and image forming apparatus incorporating same202110,281,848Image forming apparatus and image forming method201910,185,255Image forming apparatus and image forming method for controlling a secondary transfer bias according to recording sheet type20199,042,779'Transfer belt device and image forming apparatus including the same'20158,467,709'Image forming apparatus having a movably supported transfer belt detector'20138,457,536'Transfer device and image forming apparatus including same'20138,326,174'Cleaning unit for an electrophotographic image forming apparatus having a polarity control member'20128,190,077'Cleaning device and image forming apparatus'20128,019,268'Polarity controlling device, and cleaner and image forming apparatus using the polarity controlling device'20117,903,995'Cleaning device, image forming apparatus, and process cartridge'20117,817,954'Cleaning unit, image carrier unit including same, and image forming apparatus including same'2010Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2012Based in Fujisawa, JP· patent location history
2011–2021Patents assigned to RICOH CO LTD (11)· patent assignee history
2012–2021Patents assigned to NAKAMATSU HIROKI (8)· patent assignee history
2013–2019Patents assigned to KOGURE SEIICHI (4)· patent assignee history
2013–2015Patents assigned to HARUNO KATSUHITO (3)· patent assignee history
2013–2021Based in Kanagawa, JP· patent location history
2013Based in Tokyo, JP· patent location history
2019–2021Patents assigned to KUMAGAI NAOHIRO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 11 | 2011–2021 |
| NAKAMATSU HIROKIself | 8 | 2012–2021 |
| KOGURE SEIICHI | 4 | 2013–2019 |
| HARUNO KATSUHITO | 3 | 2013–2015 |
| KUMAGAI NAOHIRO | 3 | 2019–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 6 | 2013–2021 |
| Fujisawa, JP | 5 | 2010–2012 |
| Tokyo, JP | 1 | 2013 |