Inventor

Toshio Koshizuka

Inventor

Tochigi, JP

Overview

1994

Patent span

Performing operations

Primary field (CPC B)

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

B21Cprimary

B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling17%

B23KSoldering or unsoldering17%

B23PMetal-working not otherwise provided for17%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact17%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application17%

Y10TTechnical subjects covered by former us classification17%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to CALSONIC CORP (1)· patent assignee history

1994Based in Tochigi, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CALSONIC CORP	1	1994

Locations

Location	Patents	Span
Tochigi, JP	1	1994