Inventor

Keiji Hazama

Inventor

Oyama, JP

Overview

4→

Patents

1981–1988

Patent span

Electricity

Primary field (CPC H)

Patents· 4 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 h1033%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%

B29CShaping or joining of plastics8%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts8%

B29LIndexing scheme associated with subclass b29c, relating to particular articles8%

G11CStatic stores8%

H01HElectric switches8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

4,764,235'Process and apparatus for sealing semiconductor packages'1988 4,751,611'Semiconductor package structure'1988 4,722,441'Package structure for semiconductors'1988 4,305,897'Packaging process for semiconductors'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1988Patents assigned to HITACHI CHEMICAL CO LTD (4)· patent assignee history

1981Based in Shimodate, JP· patent location history

1988Based in Oyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CHEMICAL CO LTD	4	1981–1988

Locations

Location	Patents	Span
Oyama, JP	3	1988
Shimodate, JP	1	1981