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Inventor

Toshiaki Narukawa

Inventor
Tokyo, JP

Overview

2→
Patents
1999–2003
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H05Bprimary
H05BElectric heating33%
H10NElectric solid-state devices not otherwise provided for33%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications33%
PatentTitleYear
6,577,072'Power supply and LED lamp device'20035,977,688'Electronic apparatus for being switched using piezoelectric element'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to SEIKO INSTR R & D CENTER INC (1)· patent assignee history
1999Based in Oota, JP· patent location history
2003Patents assigned to TAKION CO LTD (1)· patent assignee history
2003Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO INSTR R & D CENTER INC11999
TAKION CO LTD12003
Locations
LocationPatentsSpan
Tokyo, JP12003
Oota, JP11999