LexDanaLexDanabeta
Inventor

Yoshio Narumiya

Inventor
Nagoya, JP

Overview

1→
Patents
2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B60Mprimary
B60MPower supply lines, and devices along rails, for electrically- propelled vehicles50%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines50%
PatentTitleYear
6,439,552'Overhead wire tensioning device'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to DENGYO INC (1)· patent assignee history
2002Patents assigned to NHK SPRING CO LTD (1)· patent assignee history
2002Patents assigned to TOKAI RYOKAKU TETSUDO KK (1)· patent assignee history
2002Based in Nagoya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DENGYO INC12002
NHK SPRING CO LTD12002
TOKAI RYOKAKU TETSUDO KK12002
Locations
LocationPatentsSpan
Nagoya, JP12002