Inventor
Kosuke Harada
Inventor
Fukuoka, JP
Overview
Patents· 11 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 systems41%
G05FSystems for regulating electric or magnetic variables24%
H02JElectric power networks12%
H03KPulse technique6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
7,586,759'Power source apparatus'20096,108,216'Non-contact electrical power transmission system'20005,099,406'DC-DC converter with surge voltage prevention'19925,063,488'Switching power source means'19915,027,263'Switching power source means'19915,019,770'Switching power source device having energy recovery'19914,893,069'Ferroresonant three-phase constant AC voltage transformer arrangement with compensation for unbalanced loads'19904,786,854'Alternating current voltage regulator using a feedback loop with step filtering'19884,642,549'Ferroresonant constant AC voltage regulator'19874,626,983'Power conversion device for solar cell'19864,556,802'Uninterruptible ac power supply'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1991Patents assigned to NISHIMU DENSHI KOGYO KK (6)· patent assignee history
1985–2009Based in Fukuoka, JP· patent location history
1991–1992Patents assigned to UNIV KYUSHU (4)· patent assignee history
2000Patents assigned to MATSUSHITA ELECTRIC WORKS LTD (1)· patent assignee history
2009Patents assigned to TAIYO YUDEN KK (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NISHIMU DENSHI KOGYO KK | 6 | 1985–1991 |
| UNIV KYUSHU | 4 | 1991–1992 |
| MATSUSHITA ELECTRIC WORKS LTD | 1 | 2000 |
| TAIYO YUDEN KK | 1 | 2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fukuoka, JP | 11 | 1985–2009 |