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Inventor

Ken Arakawa

Inventor
Kusatsu, JP

Overview

4→
Patents
1995–2007
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G11Cprimary
G11CStatic stores40%
G11BInformation storage based on relative movement between record carrier and transducer20%
H03KPulse technique20%
H05KPrinted circuits20%
PatentTitleYear
7,164,604'Nonvolatile semiconductor memory'20077,151,704'Semiconductor memory device'20066,940,332'Level shift circuit having control circuits for high speed, area saving and power saving'20055,396,390'Magnetic head assembly for floppy disc drive'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to ALPS ELECTRIC CO LTD (1)· patent assignee history
1995Based in Nagaoka, JP· patent location history
2005–2007Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
2005Based in Shiga, JP· patent location history
2006–2007Based in Kusatsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32005–2007
ALPS ELECTRIC CO LTD11995
Locations
LocationPatentsSpan
Kusatsu, JP22006–2007
Shiga, JP12005
Nagaoka, JP11995