Sakae Nagayama
Inventor
Stats
- 3 US patents issued
- 3 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 3 US Patents Issued
- 3 US Applications Filed
- 35 Total Citation Count
- Sep 17, 2004 Most Recent Filing
- Aug 16, 1996 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| HITACHI, LTD. | 1
| 1996
|
| HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD. | 2
| 2004
|
| HITACHI TELECOM TECHNOLOGIES, LTD. | 1
| 2000
|
Inventor Addresses
| Address | Duration |
|---|---|
| Fukushima, JP | May 12, 05 - Jun 09, 09 |
| Koriyama, JP | Oct 31, 00 - Jan 14, 03 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| H04L: | TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION | 2 |
| H04M: | TELEPHONIC COMMUNICATION | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 7545798 | 2009 | Communication system for controlling a call portion | 0 |
| 2005/0100,002 | 2005 | Communication system | 26 |
| 6507578 | 2003 | Channel division control equipment of the ISDN primary rate interface circuit | 0 |
| 6141343 | 2000 | Channel division control equipment of the ISDN primary rate interface circuit | 3 |
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