Inventor
Hisashi Ishijima
Inventor
Kanagawa, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing35%
G03GElectrography21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes15%
B29BPreparation or pretreatment of the material to be shaped3%
H04NPictorial communication, e.g. television3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
9,111,008'Document information management system'20158,554,786'Document information management system'20137,624,045'System and method for transmitting information regarding supplies and suppliers for image forming equipment'20097,599,864'System and method for transmitting information regarding supplies and suppliers for image forming equipment'20097,512,874'Document information management system'20097,363,580'Intermediate address table for converting position information to an address of a link structure correlated information file on a hypertext document'20087,321,867'System and method for transmitting information regarding supplies and suppliers for image forming equipment'20087,227,655'Utilizing otherwise unused space on cover or partition sheets'20076,910,184'Document information management system'20056,658,408'Document information management system'20036,537,324'Generating and storing a link correlation table in hypertext documents at the time of storage'20036,529,788'Recycling system and recycling method'20036,381,593'Document information management system'20026,356,923'Document information management system'20026,317,570'Field service system for image forming devices'20016,035,308'System and method of managing document data with linking data recorded on paper media'20006,014,668'Document information management system and method of generating a human-computer interactive document sheet allowing relevant information retrieval from a remote site'2000RE036301'Image forming apparatus having rotatable electrophotographic process unit'19995,367,363'Image forming apparatus having rotatable electrophotographic process unit'19945,235,384'Image forming apparatus with replaceable process units'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2009Patents assigned to RICOH KK (17)· patent assignee history
1993–2000Based in Yokohama, JP· patent location history
2001–2009Patents assigned to RICOH CORP (5)· patent assignee history
2001–2009Based in Fort Lee, NJ, US· patent location history
2002–2015Based in Kanagawa, JP· patent location history
2005Based in Tokoyo, JP· patent location history
2013–2015Patents assigned to RICOH CO LTD (2)· patent assignee history
2013Patents assigned to ISHIJIMA HISASHI (1)· patent assignee history
2013Patents assigned to TABATA YASUHIRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 17 | 1993–2009 |
| RICOH CORP | 5 | 2001–2009 |
| RICOH CO LTD | 2 | 2013–2015 |
| ISHIJIMA HISASHIself | 1 | 2013 |
| TABATA YASUHIRO | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 9 | 2002–2015 |
| Fort Lee, New Jersey, US | 5 | 2001–2009 |
| Yokohama, JP | 5 | 1993–2000 |
| Tokoyo, JP | 1 | 2005 |