Inventor
Mutsuo Watanabe
Inventor
Kawasaki, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography35%
B41JTypewriters30%
G06KGraphical data reading10%
B23KSoldering or unsoldering5%
B24CAbrasive or related blasting with particulate material5%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
H04BTransmission5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
11,068,672Wireless tag system and wireless communication area shaping method202111,055,660Product registration apparatus, product registration method, and non-transitory storage medium20218,180,255'Rotation member unit and image forming apparatus'20126,833,228'Toner and an image formation method'20046,727,030'Toner and an image formation method'20046,660,213'Nozzle plate manufacturing method'20036,508,544'Ink-jet head and printer using the same'20036,450,623'Inkjet head which arranges protective layer at surface to which nozzle plate is connected and method for manufacturing the inkjet head'20026,382,780'Inkjet head formed of divided pressure-chamber plate, method for manufacturing the same, and recording device having the inkjet head'20026,328,434'Inkjet head, its manufacturing method and recording device'20016,053,601'Ink jet printer'20004,977,429'Apparatus for supplying toner to an image forming apparatus'19904,967,234'Image forming apparatus'19904,785,328'Electrophotographic copying machine'19884,200,388'Toner density sensor for electrostatic copying machine'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1990Patents assigned to RICOH KK (4)· patent assignee history
1988–2012Based in Yokohama, JP· patent location history
2000–2003Patents assigned to FUJITSU LTD (6)· patent assignee history
2000–2021Based in Kawasaki, JP· patent location history
2002Based in Zama, JP· patent location history
2004Patents assigned to FUJI XEROX CO LTD (2)· patent assignee history
2004Based in Inagi, JP· patent location history
2012Patents assigned to RICOH CO LTD (1)· patent assignee history
2021Patents assigned to NEC CORP (2)· patent assignee history
2021Based in Yokohama-shi, Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 6 | 2000–2003 |
| RICOH KK | 4 | 1980–1990 |
| FUJI XEROX CO LTD | 2 | 2004 |
| NEC CORP | 2 | 2021 |
| RICOH CO LTD | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 6 | 2000–2021 |
| Yokohama, JP | 4 | 1988–2012 |
| Inagi, JP | 2 | 2004 |
| Yokohama-shi, Kanagawa, JP | 1 | 2021 |
| Zama, JP | 1 | 2002 |