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Inventor

Shun-ichi Hiraki

Inventor
Nagareyama, JP

Overview

3→
Patents
1986–1992
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.

H10Pprimary
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1038%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests38%
H10DInorganic electric semiconductor devices25%
PatentTitleYear
5,130,261'Method of rendering the impurity concentration of a semiconductor wafer uniform'19925,015,593'Method of manufacturing semiconductor device'19914,585,489'Method of controlling lifetime of minority carriers by electron beam irradiation through semi-insulating layer'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1992Patents assigned to TOSHIBA KK (3)· patent assignee history
1986Based in Hyogo, JP· patent location history
1991–1992Based in Nagareyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK31986–1992
Locations
LocationPatentsSpan
Nagareyama, JP21991–1992
Hyogo, JP11986