Inventor
Katsumi Tadamura
Inventor
Shobara, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Qprimary
H04QSelecting35%
H04LTransmission of digital information, e.g. telegraphic communication30%
H04MTelephonic communication25%
G06FElectric digital data processing10%
PatentTitleYear
7,236,487'System for and method of exchanging server data in packet unit'20077,006,496'System for and method of exchanging server data in packet unit'20066,621,816'System for and method of exchanging server data in packet unit'20036,141,338'System for and method of exchanging server data in packet unit'20005,761,405'Data integrity guarantee system'19985,548,710'Method and apparatus for an ISDN communication system using active and stand-by ISDN communication adaptors to maintain operation when trouble occurs'19965,537,401'System for and method of exchanging server data in packet unit'19965,157,662'Data communication apparatus having communication-mode changeover function and method of data communication between data communication stations having the same'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2007Patents assigned to HITACHI LTD (8)· patent assignee history
1992Based in Yokohama, JP· patent location history
1996–2007Based in Shobara, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 8 | 1992–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shobara, JP | 7 | 1996–2007 |
| Yokohama, JP | 1 | 1992 |