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Inventor

Ryuji Iijima

Inventor
Narashino, 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.

B24Bprimary
B24BMachines, devices, or processes for grinding or polishing29%
G05BControl or regulating systems in general29%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling14%
F16CShafts14%
H02KDynamo-electric machines14%
PatentTitleYear
5,105,137'Numerical control device for a grinding machine'19925,027,280'Machining apparatus having a main spindle supported by magnetic bearings'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

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

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO SEIKI KK21991–1992
Locations
LocationPatentsSpan
Narashino, JP21991–1992