Inventor
Atsushi Nakafuji
Inventor
Tokyo, JP
Overview
Patents· 42 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography73%
Y10TTechnical subjects covered by former us classification8%
H04LTransmission of digital information, e.g. telegraphic communication6%
H04NPictorial communication, e.g. television6%
H05BElectric heating6%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes2%
PatentTitleYear
10,021,345Communication management system, communication terminal, communication system, communication control method, and recording medium20189,706,164'Communication management system, communication terminal, communication system, communication control method, and recording medium'20179,131,104'Management device, communication system, and storage medium'20158,515,323'Sheet wrapping avoidable fixing apparatus and image forming apparatus'20138,131,699'Menu distribution system, menu server, read/write device, method, and computer readable recording medium'20127,790,343'Process, toner, process cartridge and apparatus for developing a toner image'20107,738,827'Image forming apparatus with toner image fixing unit, and the fixing method thereof'20107,711,301'Image transfer device for image forming apparatus'20107,711,300'Image forming apparatus'20107,693,471'Sheet wrapping avoidable fixing apparatus and image forming apparatus'20107,643,767'Transfer-fixing unit and image forming apparatus for enhanced image quality'20107,613,419'Image forming apparatus and image forming method characterized by a particular nip time'20097,570,911'Image forming method and apparatus for fixing an image'20097,551,882'Image forming apparatus equipping improved transfer fixing apparatus'20097,526,242'Transferring apparatus and image forming apparatus'20097,433,641'Fixing member, fixing device, and image forming apparatus'20087,369,803'Fixing device and image forming apparatus using the same'20087,346,305'Sheet wrapping avoidable fixing apparatus and image forming apparatus'20087,333,760'Fixing device with temperature control'20087,299,003'Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumption'20077,269,384'Transfer-fixing unit with a surface layer of predefined hardness for use in an image forming apparatus'20077,254,362'Fixing device, image forming apparatus using the fixing device, and heat insulating member'20077,251,429'Image forming apparatus with an energy storage that can be discharged, and with a display of residual energy in the storage'20077,233,762'Method of uniformly fixing toner to recording medium in image forming apparatus'20077,224,928'Sheet wrapping avoidable fixing apparatus and image forming apparatus'20077,177,580'Image forming method and apparatus for fixing an image'20077,139,520'Fixing device, nipping device, and image forming apparatus'20067,127,202'Intermediary transfer apparatus, fixing apparatus and image forming apparatus'20067,107,681'Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller'20067,058,330'Image forming apparatus'20067,010,257'Method of fixing toner on recording medium'20067,010,255'Fixing device having a heating member and image forming apparatus including the same'20066,957,036'Fixing member, fixing device, and image forming apparatus'20056,897,409'Image forming apparatus and fixing device therefor'20056,847,792'Image forming apparatus having a selectively discharged storage'20056,795,678'Image forming apparatus for fixing a toner image on a sheet or recording medium by use of a belt member'20046,795,676'Sheet wrapping avoidable fixing apparatus and image forming apparatus'20046,646,227'Image forming apparatus and fixing device therefor'20036,636,718'Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller'20036,631,253'Fixing device and image forming apparatus using the same'20036,559,421'Image forming apparatus and fixing device therefor'20036,542,705'Electrophotographic heating apparatus, system, and method'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2010Patents assigned to RICOH KK (37)· patent assignee history
2003–2013Based in Kanagawa, JP· patent location history
2003–2006Based in Yokohama, JP· patent location history
2004–2018Based in Tokyo, JP· patent location history
2006–2010Based in Ota, JP· patent location history
2007–2008Based in Saitama-shi, JP· patent location history
2012–2018Patents assigned to NAKAFUJI ATSUSHI (5)· patent assignee history
2012–2018Patents assigned to RICOH CO LTD (5)· patent assignee history
2017–2018Patents assigned to ASAI TAKAHIRO (2)· patent assignee history
2017–2018Patents assigned to YAMAMOTO YOHEI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 37 | 2003–2010 |
| NAKAFUJI ATSUSHIself | 5 | 2012–2018 |
| RICOH CO LTD | 5 | 2012–2018 |
| ASAI TAKAHIRO | 2 | 2017–2018 |
| YAMAMOTO YOHEI | 2 | 2017–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 25 | 2004–2018 |
| Kanagawa, JP | 8 | 2003–2013 |
| Yokohama, JP | 4 | 2003–2006 |
| Ota, JP | 3 | 2006–2010 |
| Saitama-shi, JP | 2 | 2007–2008 |