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Inventor

Hidemaru Nishikizawa

Inventor
Hadano, JP

Overview

2→
Patents
1991–1992
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B23Hprimary
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool100%
PatentTitleYear
5,086,203'Wire electric discharge machining apparatus'19924,983,802'Drawing system in a wire-cut electrodischarge machine'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1992Patents assigned to HITACHI SEIKO KK (2)· patent assignee history
1991–1992Based in Hadano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI SEIKO KK21991–1992
Locations
LocationPatentsSpan
Hadano, JP21991–1992