Inventor

WATARU OKADA

Inventor
JP

Overview

18→
Patents
2021–2025
Patent span
Electricity
Primary field (CPC H)

Patents· 18 as inventor

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

H02Mprimary
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 systems21%
H03KPulse technique17%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy15%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
H01GCapacitors4%
Y02TClimate change mitigation technologies related to transportation4%
B23KSoldering or unsoldering2%
B60LPropulsion of electrically-propelled vehicles2%
PatentTitleYear
12,255,640Driving circuit for switching element and switching circuit202512,244,028Power storage device202512,176,554Power storage device and method of manufacturing same202412,160,230Switching circuit apparatus capable of controlling multiple switching elements to synchronously turn on and off with bootstrap circuit202412,101,018Driving circuit for switching element and switching circuit202412,100,986Charging system202411,984,885Semiconductor circuit202411,848,463Power storage device202311,777,169Method of manufacturing power storage module202311,616,261Power supply device202311,606,021Power converter apparatus provided with low-pass filter circuit for reducing switching frequency components202311,552,550Voltage balance circuit for semiconductor devices connected in series with each other, switching circuit, and power converter apparatus202311,496,125Switch circuit capable of overcurrent protection with small and simple circuit, and with simple operation, without affecting normal operation202211,374,290Power supply device, vehicle in which same is used, and bus bar202211,329,546Power converter apparatus provided with low-pass filter circuit for reducing switching frequency components202211,289,773Power supply device, vehicle using same, bus bar, and electrical connection method for battery cell using same bus bar202211,196,413Driving circuit for switching element, and switching circuit202111,165,421Driving circuit for switching element and switching circuit2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2025Patents assigned to OMRON TATEISI ELECTRONICS CO (10)· patent assignee history
2021–2025Based in JP· patent location history
2022–2023Patents assigned to SANYO ELECTRIC CO (3)· patent assignee history
2023–2025Patents assigned to PRIME PLANET ENERGY & SOLUTIONS INC (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OMRON TATEISI ELECTRONICS CO102021–2025
PRIME PLANET ENERGY & SOLUTIONS INC52023–2025
SANYO ELECTRIC CO32022–2023
Locations
LocationPatentsSpan
JP182021–2025