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Inventor

Yoshio Hom-Ma

Inventor
Hachioji, JP

Overview

2→
Patents
1977–1980
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H10Wprimary
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1040%
H05KPrinted circuits20%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1020%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
4,208,257'Method of forming an interconnection'19804,025,411'Fabricating semiconductor device utilizing a physical ion etching process'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1980Patents assigned to HITACHI LTD (2)· patent assignee history
1977Based in Kokubunji, JP· patent location history
1980Based in Hachioji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD21977–1980
Locations
LocationPatentsSpan
Hachioji, JP11980
Kokubunji, JP11977