Inventor
Katsu Komuro
Inventor
Mito, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators33%
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%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%
B60LPropulsion of electrically-propelled vehicles6%
G05FSystems for regulating electric or magnetic variables6%
H03KPulse technique6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
Y02TClimate change mitigation technologies related to transportation6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
4,787,021'Current-type converter apparatus'19884,779,709'Apparatus for controlling AC elevators'19884,773,508'Elevator control apparatus'19884,661,757'Controller for AC elevator'19874,441,584'AC Elevator control system'19844,319,665'AC Elevator control system'19824,101,819'Three phase controlling system'19784,100,435'Phase control apparatus'19784,094,385'Levelling apparatus for AC elevator'19784,039,866'Thyristor control apparatus'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1988Patents assigned to HITACHI LTD (10)· patent assignee history
1977–1978Based in Katsuta, JP· patent location history
1982–1988Based in Mito, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 10 | 1977–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mito, JP | 6 | 1982–1988 |
| Katsuta, JP | 4 | 1977–1978 |