Inventor
Kohji Maki
Inventor
Hitachi, JP
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines38%
G01RMeasuring electric variables26%
H01FMagnets6%
B62DMotor vehicles4%
G01DMeasuring not specially adapted for a specific variable4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G01MTesting static or dynamic balance of machines or structures2%
G05BControl or regulating systems in general2%
G06FElectric digital data processing2%
G06NComputing arrangements based on specific computational models2%
PatentTitleYear
10,295,995Machine diagnostic apparatus and machine diagnostic method201910,218,252Linear motor and positioning apparatus201910,209,310Rotary machine diagnostic system201910,067,190Insulation diagnostic system or rotating machine20189,810,743'Deterioration diagnosis system'20179,759,774'Anomaly diagnosis system, method, and apparatus'20179,506,995'Magnetic field analysis programs and magnetic field analysis methods'20168,781,763'Method for analyzing operating point of permanent magnet, program therefor, and recording medium'20148,049,369'Power inverter controller and method'20117,777,371'Linear drive apparatus having cores and coils which are positioned on opposite sides of the cores'20107,336,077'Magnet for NMR analyzer and NMR analyzer using the same'20087,312,542'Linear motor and manufacturing method thereof'20077,187,175'Magnet for NMR analyzer and NMR analyzer using the same'20077,157,912'Apparatus for generating homogeneous magnetic field'20077,141,977'Magnet for NMR analyzer and NMR analyzer using the same'20067,138,734'Linear drive unit reducing stress generated in movable part in horizontal direction'20067,093,687'Angle sensor, angle-torque sensor and electric power steering unit using same'20067,057,327'Vehicular alternator'20067,049,913'Superconductivity magnet apparatus'20067,004,694'Linear drive apparatus'20066,975,048'Drive apparatus and XY table utilizing the same'20056,943,465'Linear motor and manufacturing method thereof'20056,926,115'Angle sensor, angle-torque sensor and electric power steering unit using same'20056,876,108'Linear motor, its controlling method, and XY table'20056,825,581'Linear motor and production method therefor'20046,753,627'Linear motor'20046,623,255'Fluid transfer apparatus'20036,614,137'Linear motor, driving and control system thereof and manufacturing method thereof'20036,570,274'Electric motor'20036,548,920'Linear motor and method of producing the same'20036,548,919'Linear motor'20036,541,880'Linear motor'20036,434,491'Method of analyzing electromagnetic fields in rotary machine and electromagnetic field analyzer'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2019Patents assigned to HITACHI LTD (31)· patent assignee history
2002–2019Based in Hitachi, JP· patent location history
2005–2006Patents assigned to HITACHI CABLE (2)· patent assignee history
2005–2019Based in Tokyo, JP· patent location history
2011Based in Novi, MI, US· patent location history
2014–2019Patents assigned to MAKI KOHJI (3)· patent assignee history
2019Patents assigned to AOYAMA YASUAKI (1)· patent assignee history
2019Patents assigned to IWAJI YOSHITAKA (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 31 | 2002–2019 |
| MAKI KOHJIself | 3 | 2014–2019 |
| HITACHI CABLE | 2 | 2005–2006 |
| AOYAMA YASUAKI | 1 | 2019 |
| IWAJI YOSHITAKA | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 24 | 2002–2019 |
| Tokyo, JP | 8 | 2005–2019 |
| Novi, MI, US | 1 | 2011 |