Inventor
Hisayoshi Koiwai
Inventor
Gunma, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B62Dprimary
B62DMotor vehicles63%
H02HEmergency protective circuit arrangements13%
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 systems13%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters13%
PatentTitleYear
9,634,587'Motor control apparatus, electric power steering apparatus and vehicle using the same'20176,874,594'Controller for electric power steering system'20056,837,331'Electric power steering device'20056,658,333'Control apparatus of power steering device'20035,920,174'Control apparatus of electric power steering apparatus'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2017Patents assigned to NSK LTD (5)· patent assignee history
1999–2017Based in Gunma, JP· patent location history
2003–2005Based in Maebashi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NSK LTD | 5 | 1999–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gunma, JP | 3 | 1999–2017 |
| Maebashi, JP | 2 | 2003–2005 |