Inventor
Narihiro Omoto
Inventor
Toda, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication50%
G06FElectric digital data processing25%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes25%
PatentTitleYear
7,574,605'Method of managing digital signature, apparatus for processing digital signature, and a computer readable medium for recording program of managing digital signature'20097,441,115'Method for verifying a digital signature'20087,299,197'Electronic mail system'20077,206,939'File storage system and a NAS server'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2009Patents assigned to HITACHI LTD (4)· patent assignee history
2007–2009Based in Toda, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 4 | 2007–2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Toda, JP | 4 | 2007–2009 |