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Inventor

Shoichi Irokawa

Inventor
Koshigaya, JP

Overview

3→
Patents
1983–2000
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems50%
H02JElectric power networks25%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
PatentTitleYear
6,125,045'Power converter having first and second power conversion units with thyristors'20005,946,205'Power conversion system with series connected self-commutated converters'19994,419,591'Multiterminal DC power transmission system'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1983Based in Nagareyama, JP· patent location history
1999–2000Patents assigned to TOSHIBA KK (2)· patent assignee history
1999Patents assigned to TOKYO ELECTRIC POWER CO (1)· patent assignee history
1999Based in Saitama, JP· patent location history
2000Based in Koshigaya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK21999–2000
TOKYO ELECTRIC POWER CO11999
TOKYO SHIBAURA ELECTRIC CO11983
Locations
LocationPatentsSpan
Koshigaya, JP12000
Saitama, JP11999
Nagareyama, JP11983