Inventor

Ken Matsuura

Inventor

Tokyo, JP

Overview

2003–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 29 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 systems47%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications26%

H01FMagnets4%

H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner4%

H03FAmplifiers4%

H03KPulse technique4%

H05BElectric heating4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

A01KAnimal husbandry2%

H02JElectric power networks2%

PatentTitleYear

10,734,886Switching power supply device2020 10,630,277FET driving circuit2020 10,574,135Zero current detection circuit for bridgeless totem pole power factor correction converter and bridgeless totem pole power factor correction converter2020 10,511,219Switching power supply with a measuring and calculating process for the switching times2019 10,505,462Power converter2019 10,498,325FET driving circuit2019 10,476,392Switching power supply device comparing first and second voltage ranges2019 10,432,110Power converter having resonant frequencies around two and four times the switching frequency2019 10,312,738Wireless power transmission system2019 10,263,537DC/AC power conversion apparatus having switchable current paths2019 10,186,962Control circuit and switching power supply2019 10,110,132Switching power supply device2018 9,960,673Control circuit and switching power supply2018 9,960,683Electronic circuit device2018 9,564,803'Control circuit and switching power supply unit'2017 9,450,497'Current resonance DC-DC converter'2016 9,425,694'Current resonance type DC-DC converter and method for operating current resonance type DC-DC converter'2016 9,118,251'Power supply device'2015 7,327,100'Discharge lamp lighting apparatus'2008 7,202,611'Discharge lamp lighting device'2007 7,132,818'Switching power supply control device and switching power supply'2006 7,078,884'Power supply apparatus and control circuit therefor'2006 7,075,278'Switching power supply controller and switching power supply'2006 7,071,666'Switching power supply, and method and circuit for regulating output of the same'2006 6,960,904'Switching power supply controller and switching power supply'2005 6,956,360'Switching power supply controller and switching power supply'2005 6,717,390'Switching power supply'2004 6,683,798'Switching power supply with transfer function control circuit'2004 6,511,007'Double-bearing type reel'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003Patents assigned to KEN MATSURA RACING SERVICE CO (1)· patent assignee history

2003Based in Hojo, JP· patent location history

2004–2020Patents assigned to TDK CORP (28)· patent assignee history

2004–2020Based in Tokyo, JP· patent location history

2005–2008Based in Chuo-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TDK CORP	28	2004–2020
KEN MATSURA RACING SERVICE CO	1	2003

Locations

Location	Patents	Span
Tokyo, JP	25	2004–2020
Chuo-ku, JP	3	2005–2008
Hojo, JP	1	2003