Inventor
Kihei Nakajima
Inventor
Yokohama, JP
Overview
Patents· 8 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 systems45%
G05FSystems for regulating electric or magnetic variables9%
H02JElectric power networks9%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters9%
H05KPrinted circuits9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
6,563,691'Mounting structure for capacitors'20036,125,045'Power converter having first and second power conversion units with thyristors'20005,001,619'Harmonics suppression control circuit for a PWM inverter'19914,878,208'Voltage-phase responsive, inverter disable circuit for system interconnection'19894,649,334'Method of and system for controlling a photovoltaic power system'19874,517,636'Inverter apparatus'19854,349,867'Control apparatus for a cycloconverter'19824,246,528'System for controlling alternating current motors'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1985Patents assigned to TOKYO SHIBAURA ELECTRIC CO (3)· patent assignee history
1981–2000Based in Yokohama, JP· patent location history
1987–2003Patents assigned to TOSHIBA KK (5)· patent assignee history
2003Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 5 | 1987–2003 |
| TOKYO SHIBAURA ELECTRIC CO | 3 | 1981–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 7 | 1981–2000 |
| Kanagawa, JP | 1 | 2003 |