Inventor
Yoshiaki Hachiya
Inventor
Shiga, JP
Overview
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 systems29%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications21%
H05BElectric heating15%
G05FSystems for regulating electric or magnetic variables6%
H03KPulse technique6%
A63HToys, e.g. tops, dolls, hoops or building blocks3%
B23KSoldering or unsoldering3%
F21KNon-electric light sources using luminescence3%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted3%
G01RMeasuring electric variables3%
PatentTitleYear
9,137,860'Illumination light source and lighting apparatus'20158,023,292'Switching control device'20117,834,828'Led driving semiconductor apparatus provided with controller including regulator and drain current detector of switching element block'20107,638,954'Light emitting diode drive apparatus'20097,511,929'Switching power supply and semiconductor device used therefor'20097,508,254'Reference supply voltage circuit using more than two reference supply voltages'20097,439,719'Switching control circuit with off period adjustment'20087,426,121'Output voltage detection circuit, isolated switching power supply, and semiconductor device'20087,348,766'Switching power supply device'20087,321,223'Switching power supply apparatus'20087,167,382'Semiconductor device'20077,167,028'Voltage detection circuit, power supply unit and semiconductor device'20077,115,888'LED driving semiconductor circuit and LED driving apparatus including the same'20066,812,682'Switching power supply unit and semiconductor device for switching power supply'20046,534,829'Semiconductor device and method for fabricating the same'20036,294,903'Switching power supply'20016,069,501'Semiconductor device'20006,005,350'Electroluminescent driving apparatus with photodetector'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history
1999–2015Based in Shiga, JP· patent location history
2000Patents assigned to MATSUSHITA ELECTRONICS CORP (1)· patent assignee history
2000–2008Based in Otsu, JP· patent location history
2007–2008Based in Ohtsu, JP· patent location history
2007Based in Ootsu, JP· patent location history
2009–2015Patents assigned to PANASONIC CORP (6)· patent assignee history
2015Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 11 | 1999–2008 |
| PANASONIC CORP | 6 | 2009–2015 |
| MATSUSHITA ELECTRONICS CORP | 1 | 2000 |
| PANASONIC IP MAN CO LTD | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shiga, JP | 12 | 1999–2015 |
| Otsu, JP | 3 | 2000–2008 |
| Ohtsu, JP | 2 | 2007–2008 |
| Ootsu, JP | 1 | 2007 |