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Inventor

Toshiaki Seima

Inventor
Yonago, JP

Overview

6→
Patents
1990–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters50%
F04DNon-positive-displacement pumps13%
F24FAir-conditioning13%
H02KDynamo-electric machines13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
10,910,925Circuit board, motor unit, and fan202110,458,423Impeller and fan including the impeller20196,873,125'Motor driving apparatus and motor using the same'20056,528,968'Brushless-motor driver in PWM mode'20036,020,715'Control device for a brushless motor'20004,958,948'System for driving a brushless motor'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2005Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (4)· patent assignee history
1990–2021Based in Yonago, JP· patent location history
2003–2005Based in Tottori, JP· patent location history
2019–2021Patents assigned to MINEBEA MITSUMI INC (2)· patent assignee history
2019Based in Fukuroi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41990–2005
MINEBEA MITSUMI INC22019–2021
Locations
LocationPatentsSpan
Yonago, JP31990–2021
Tottori, JP22003–2005
Fukuroi, JP12019