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Inventor

Kazuo Nishihama

Inventor
Hitachi, JP

Overview

10→
Patents
2005–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H02Kprimary
H02KDynamo-electric machines77%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters8%
PatentTitleYear
11,075,570Rotary electric machine and drive system using same202110,243,430Rotating electrical machine with rotor and stator, with a stator core including packet cores20198,841,812'Squirrel-cage induction motor'20148,816,559'Squirrel cage induction motor and squirrel cage induction motor driving system'20148,546,991'Synchronous generator and synchronous generator system for reducing distortion of current waveform'20137,737,593'Electrical rotation machine and a wind turbine system'20107,541,710'Rotating electric machine'20097,498,707'Electrical rotation machine and a wind turbine system'20097,129,613'Rotating electrical machine and drive system of cage induction motor'20066,882,078'Rotating electrical machine and drive system of cage induction motor'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2019Patents assigned to HITACHI LTD (8)· patent assignee history
2005–2013Based in Hitachi, JP· patent location history
2013–2014Patents assigned to MIKAMI HIROYUKI (3)· patent assignee history
2013–2014Patents assigned to NISHIHAMA KAZUO (3)· patent assignee history
2014Patents assigned to KAIHATSU KEIICHIRO (2)· patent assignee history
2014Patents assigned to SHIMOZONO TADAHIRO (2)· patent assignee history
2014Based in Hitachinaka, JP· patent location history
2019–2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD82005–2019
MIKAMI HIROYUKI32013–2014
NISHIHAMA KAZUOself32013–2014
KAIHATSU KEIICHIRO22014
SHIMOZONO TADAHIRO22014
Locations
LocationPatentsSpan
Hitachi, JP62005–2013
Tokyo, JP22019–2021
Hitachinaka, JP22014