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Inventor

Chieko Takada

Inventor
Tokyo, JP

Overview

1→
Patents
2015
Patent span
Electricity
Primary field (CPC H)

Patents· 1 as inventor

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

H01Lprimary
H01LSemiconductor devices33%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1033%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
9,064,809'Method for removing oxide film formed on surface of silicon wafer'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to SUMCO CORP (1)· patent assignee history
2015Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMCO CORP12015
Locations
LocationPatentsSpan
Tokyo, JP12015