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Inventor

Takumi Kawai

Inventor
Kasugai, JP

Overview

7→
Patents
1989–2006
Patent span
Physics
Primary field (CPC G)

Patents· 7 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer21%
G01RMeasuring electric variables14%
G05BControl or regulating systems in general14%
F01KSteam engine plants7%
G05FSystems for regulating electric or magnetic variables7%
G06FElectric digital data processing7%
H03FAmplifiers7%
H10DInorganic electric semiconductor devices7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
7,075,159'Horizontal MOS transistor'20066,522,491'Magnetoresistive element input circuit'20036,466,080'Constant current driver circuit'20026,255,898'Noise eliminating circuit'20015,452,148'Preamplifing circuit for a magnetoresistance device'19955,214,913'Servo valve control apparatus'19934,825,352'Process control system and method thereof'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1993Patents assigned to HITACHI LTD (2)· patent assignee history
1989–1993Based in Katsuta, JP· patent location history
1995–2006Patents assigned to FUJITSU LTD (5)· patent assignee history
1995Based in Kawasaki, JP· patent location history
2001–2006Based in Kasugai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD51995–2006
HITACHI LTD21989–1993
Locations
LocationPatentsSpan
Kasugai, JP42001–2006
Katsuta, JP21989–1993
Kawasaki, JP11995