Inventor
Keisuke Shimoyama
Inventor
Numazu, JP
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography82%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
H04NPictorial communication, e.g. television6%
C07DHeterocyclic compounds3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
10,845,738Image forming method, image forming apparatus, and process cartridge202010,416,594Image forming method, image forming apparatus, and process cartridge201910,114,302Photoconductor, image forming apparatus, and process cartridge20189,989,868Photoconductor, image forming method using the same, method of manufacturing the photoconductor, and image forming apparatus20189,740,116'Photoconductor, and image forming method and image forming apparatus using the photoconductor'20179,523,930'Photoconductor, and image forming method and image forming apparatus using the same'20169,146,483'Photoreceptor, method for preparing photoreceptor, and image forming apparatus and process cartridge using the photoreceptor'20159,031,491'Image forming apparatus and process cartridge'20158,652,717'Image bearing member and image forming method, image forming apparatus, and process cartridge using the same'20148,588,630'Image forming apparatus'20138,383,305'Image forming apparatus'20138,380,109'Image forming apparatus and process cartridge'20138,349,529'Electrophotographic photoconductor, and electrophotographic method, electrophotographic apparatus and process cartridge containing the electrophotographic photoconductor'20138,278,016'Electrophotographic photoconductor'20128,263,297'Electrophotographic photoconductor and electrophotographic apparatus'20128,252,499'Image forming method and image forming apparatus'20128,232,031'Naphthalenetetracarboxylic acid diimide derivative and electrophotographic photoconductor having the same'20128,227,156'Electrophotographic photoconductor, image forming apparatus, image forming method, and process cartridge'20128,192,905'Electrophotographic photoconductor, image forming apparatus, and process cartridge'20128,114,559'Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the same'20128,064,795'Electrophotographic image forming apparatus and process cartridge'20118,059,990'Image forming apparatus'20118,007,972'Electrophotographic photoconductor, and image forming apparatus, process cartridge and image forming method using the same'20117,919,220'Electrophotographic photoreceptor, image forming apparatus and process cartridge'20117,871,747'Electrophotographic photoconductor having charge blocking and moire preventing layers'20117,747,197'Electrophotographic image forming apparatus and process cartridge'20107,486,914'Electrophotographic image forming apparatus, process cartridge and image forming method wherein lubricant is supplied to a surface of an image bearing member'20097,274,898'Process cartridge, image forming method, and image forming apparatus'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2013Based in Numazu, JP· patent location history
2011–2020Patents assigned to RICOH CO LTD (25)· patent assignee history
2011–2020Patents assigned to SHIMOYAMA KEISUKE (21)· patent assignee history
2011–2018Patents assigned to KURIMOTO EIJI (13)· patent assignee history
2013–2020Patents assigned to SUGINO AKIHIRO (8)· patent assignee history
2013–2020Based in Shizuoka, JP· patent location history
2016–2020Patents assigned to KAMI HIDETOSHI (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 25 | 2011–2020 |
| SHIMOYAMA KEISUKEself | 21 | 2011–2020 |
| KURIMOTO EIJI | 13 | 2011–2018 |
| SUGINO AKIHIRO | 8 | 2013–2020 |
| KAMI HIDETOSHI | 6 | 2016–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Numazu, JP | 17 | 2007–2013 |
| Shizuoka, JP | 11 | 2013–2020 |