Inventor

Fumio Ishizaki

Inventor

Utsunomiya, JP

Overview

1987

Patent span

Performing operations

Primary field (CPC B)

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

B23Bprimary

B23BTurning50%

Y10TTechnical subjects covered by former us classification50%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to HITACHI SEIKI KK (1)· patent assignee history

1987Patents assigned to KYORITSU SEIKI CORP (1)· patent assignee history

1987Based in Utsunomiya, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI SEIKI KK	1	1987
KYORITSU SEIKI CORP	1	1987

Locations

Location	Patents	Span
Utsunomiya, JP	1	1987