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Inventor

Naruhiko Suzuki

Inventor
Hitachi, JP

Overview

5→
Patents
1990–2007
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A47Lprimary
A47LDomestic washing or cleaning40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests30%
B04CApparatus using free vortex flow, e.g. cyclones20%
F16LPipes10%
PatentTitleYear
7,276,099'Electric vacuum cleaner'20077,207,083'Electric vacuum cleaner'20075,216,778'Vacuum cleaner'19935,042,844'Hose fixture device'1991D0312901'Electric vacuum cleaner'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to HITACHI LTD (3)· patent assignee history
1990–2007Based in Hitachi, JP· patent location history
1991Patents assigned to TAGA SANGYO KK (1)· patent assignee history
2007Patents assigned to HITACHI HOME & LIFE SOLUTIONS (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31990–1993
HITACHI HOME & LIFE SOLUTIONS22007
TAGA SANGYO KK11991
Locations
LocationPatentsSpan
Hitachi, JP51990–2007