Inventor
Natsumi Katoh
Inventor
Kanagawa, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
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G03GElectrography100%
PatentTitleYear
8,639,150'Development device and image forming apparatus'20148,280,281'Development device and image forming apparatus'20128,260,175'Developing apparatus and image forming apparatus using same'20128,185,021'Developing device and image forming apparatus'20128,175,488'Image forming apparatus and image forming method including transporting developer using an airflow generator'20128,139,985'Developing apparatus and image forming apparatus using same'20128,112,016'Developing agent circulation system and image forming apparatus using same'20128,103,197'Developing system and image forming apparatus incorporating same'20128,073,368'Development device and image forming apparatus'20118,036,576'Developing device including a stirring mechanism for a two-component developer and image forming apparatus including same'20118,014,703'Development device and image forming apparatus'20118,000,638'Developing device using two-component developing agent and image forming apparatus provided with same'20117,953,350'Developing device for developing latent images to toner images'20117,912,408'Image forming apparatus, process cartridge, and development device'20117,835,653'Developing device and image forming apparatus'20107,792,472'Developing apparatus and image forming apparatus using same'20107,783,233'Developing device including improved conveying device, process cartridge and image forming apparatus using the same'20107,729,642'Stress-reduceable transport unit and image forming apparatus using the same'20107,636,536'Image forming apparatus having an improved developer conveying system'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2012Based in Yokohama, JP· patent location history
2010–2014Patents assigned to RICOH CO LTD (15)· patent assignee history
2010–2014Based in Kanagawa, JP· patent location history
2010Based in Yokohama-shi, Kanagawa, JP· patent location history
2011–2014Patents assigned to KATOH NATSUMI (9)· patent assignee history
2011–2014Patents assigned to MATSUMOTO JUNICHI (9)· patent assignee history
2011–2012Patents assigned to IWATA NOBUO (8)· patent assignee history
2011–2014Patents assigned to OHMURA TOMOYA (6)· patent assignee history
2011–2012Based in Atsugi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 15 | 2010–2014 |
| KATOH NATSUMIself | 9 | 2011–2014 |
| MATSUMOTO JUNICHI | 9 | 2011–2014 |
| IWATA NOBUO | 8 | 2011–2012 |
| OHMURA TOMOYA | 6 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 8 | 2010–2014 |
| Atsugi, JP | 7 | 2011–2012 |
| Yokohama, JP | 3 | 2009–2012 |
| Yokohama-shi, Kanagawa, JP | 1 | 2010 |