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Inventor

Masahiro Ao

Inventor
Tochigi, JP

Overview

6→
Patents
1991–2008
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus43%
G11BInformation storage based on relative movement between record carrier and transducer43%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
7,412,137'Optical power monitor'20087,065,284'Variable optical attenuator'20066,931,177'Optical fiber array with lenses'20055,771,133'Floating magnetic head'19985,052,099'Method of fabricating a magnetic head by sputter etching'19915,010,429'Floating magnetic head having improved static friction coefficient'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2008Patents assigned to HITACHI METALS LTD (6)· patent assignee history
1991Based in Mooka, JP· patent location history
1998Based in Kawachi-gun, JP· patent location history
2005–2008Based in Tochigi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI METALS LTD61991–2008
Locations
LocationPatentsSpan
Tochigi, JP32005–2008
Mooka, JP21991
Kawachi-gun, JP11998