LexDanaLexDanabeta
Inventor

Fumio Urayama

Inventor
Koriyama, JP

Overview

2→
Patents
2009–2010
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Mprimary
H04MTelephonic communication50%
H04QSelecting50%
PatentTitleYear
7,796,741'Call connection control unit and call connection control method'20107,577,135'IP telephone system'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009Patents assigned to HITACHI COMM TECH LTD (1)· patent assignee history
2009Based in Fukishima-ken, JP· patent location history
2010Patents assigned to HITACHI LTD (1)· patent assignee history
2010Based in Koriyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI COMM TECH LTD12009
HITACHI LTD12010
Locations
LocationPatentsSpan
Koriyama, JP12010
Fukishima-ken, JP12009