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Inventor

Nobuyuki Ohtaka

Inventor
Kadoma, JP

Overview

6→
Patents
2007–2012
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H05Bprimary
H05BElectric heating44%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems22%
G09GArrangements or circuits for control of indicating devices using static means to present variable information11%
H02JElectric power networks11%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications11%
PatentTitleYear
8,305,006'Light emitting element control circuit'20128,228,005'Light-emitting-element driving circuit'20128,203,524'Light-emitting element driving circuit'20128,093,879'Semiconductor circuit'20127,573,248'Step-up switching voltage regulator circuit'20097,256,552'LED control circuit'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2012Patents assigned to SANYO ELECTRIC CO (4)· patent assignee history
2007–2009Based in Osaka, JP· patent location history
2012Patents assigned to OHTAKA NOBUYUKI (4)· patent assignee history
2012Patents assigned to SANYO SEMICONDUCTOR CO LTD (3)· patent assignee history
2012Patents assigned to SEMICONDUCTOR COMPONENTS IND (2)· patent assignee history
2012Patents assigned to YOSHIDA TOMOSHI (2)· patent assignee history
2012Based in Kadoma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OHTAKA NOBUYUKIself42012
SANYO ELECTRIC CO42007–2012
SANYO SEMICONDUCTOR CO LTD32012
SEMICONDUCTOR COMPONENTS IND22012
YOSHIDA TOMOSHI22012
Locations
LocationPatentsSpan
Kadoma, JP42012
Osaka, JP22007–2009