Inventor
KOHJI MAKI
Inventor
JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables23%
G05BControl or regulating systems in general23%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters15%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves8%
G01MTesting static or dynamic balance of machines or structures8%
G06NComputing arrangements based on specific computational models8%
H02HEmergency protective circuit arrangements8%
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 systems8%
PatentTitleYear
12,181,865Operating state classification system, and operating state classification method202412,061,236Power conversion device, rotating machine system, and diagnosis method202411,269,322Failure diagnosis system202211,209,487Rotor diagnostic apparatus, rotor diagnostic method, and rotor diagnostic program202111,193,978Power conversion device, rotating machine system using same, and diagnosis method for same2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2024Patents assigned to HITACHI LTD (3)· patent assignee history
2021–2024Patents assigned to HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (2)· patent assignee history
2021–2024Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 3 | 2021–2024 |
| HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD | 2 | 2021–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 5 | 2021–2024 |