LexDanaLexDanabeta
Inventor

Akira Seino

Inventor
Kawasaki, JP

Overview

3→
Patents
1984–2008
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.

H03Fprimary
H03FAmplifiers40%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock20%
G11BInformation storage based on relative movement between record carrier and transducer20%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters20%
PatentTitleYear
7,456,687'Amplifier unit and method of detecting failure in the same'20085,898,339'Feedforward amplifier'19994,443,745'Rotation signal detection device of DC motor with brushes'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1984Based in Yokohama, JP· patent location history
1999–2008Patents assigned to FUJITSU LTD (2)· patent assignee history
1999–2008Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD21999–2008
TOKYO SHIBAURA ELECTRIC CO11984
Locations
LocationPatentsSpan
Kawasaki, JP21999–2008
Yokohama, JP11984