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Inventor

Hisao Nakayama

Inventor
Hitachi, JP

Overview

3→
Patents
1980–2009
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C10Mprimary
C10MLubricating compositions20%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions20%
LOC1020%
LOC1420%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
D0602021'Biometrics input unit'2009D0569286'Biometrics input unit'20084,206,060'Bolt and nut unit coated with lubricant'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to SUMITOMO METAL IND (1)· patent assignee history
1980Patents assigned to UMEBACHI FASTENER K K (1)· patent assignee history
1980Based in Handa, JP· patent location history
2008–2009Patents assigned to HITACHI INF & CONTROL SYST (2)· patent assignee history
2008–2009Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI INF & CONTROL SYST22008–2009
SUMITOMO METAL IND11980
UMEBACHI FASTENER K K11980
Locations
LocationPatentsSpan
Hitachi, JP22008–2009
Handa, JP11980