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Inventor

Yasuchika Nishitani

Inventor
Tokyo, JP

Overview

2→
Patents
1994–2009
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.

G01Rprimary
G01RMeasuring electric variables25%
H02HEmergency protective circuit arrangements25%
H02JElectric power networks25%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
PatentTitleYear
7,579,712'Power system protection system'20095,293,295'Digital protective relay apparatus'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2009Patents assigned to TOSHIBA KK (2)· patent assignee history
1994Based in Tokorozawa, JP· patent location history
2009Patents assigned to TOKYO ELECTRIC POWER CO (1)· patent assignee history
2009Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK21994–2009
TOKYO ELECTRIC POWER CO12009
Locations
LocationPatentsSpan
Tokyo, JP12009
Tokorozawa, JP11994