Inventor

Takafumi Maeda

Inventor

Tokyo, JP

Overview

1985–2019

Patent span

Electricity

Primary field (CPC H)

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

H02Hprimary

H02HEmergency protective circuit arrangements15%

H02JElectric power networks15%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%

B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling8%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material8%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure8%

G01NInvestigating or analysing materials by determining their chemical or physical properties8%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h108%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985–2009Patents assigned to TOKYO ELECTRIC POWER CO (3)· patent assignee history

1985Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history

1985–2009Based in Tokyo, JP· patent location history

1992Patents assigned to HITACHI LTD (1)· patent assignee history

1996Based in Kariya, JP· patent location history

1998–2009Patents assigned to TOSHIBA KK (2)· patent assignee history

2019Patents assigned to NIDEC CORP (1)· patent assignee history

2019Based in Kyoto, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations