Inventor
Yasuyuki Wakahara
Inventor
Kariya, JP
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Rprimary
H01RElectrically-conductive connections21%
F02NStarting of combustion engines17%
H02KDynamo-electric machines12%
Y10TTechnical subjects covered by former us classification12%
F16DCouplings for transmitting rotation7%
H01HElectric switches7%
F16FSprings5%
F16HGearing5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C10MLubricating compositions2%
PatentTitleYear
7,294,166'Metal-graphite brush'20077,067,951'Copper-graphite brush'20067,038,563'Electromagnetic switch for starter'20066,949,863'Metal-graphite brush'20056,887,160'Shock absorber'20056,819,005'Chemical treatment of helical splines in starter'20046,815,862'Multilayer brush'20046,758,881'Metal-graphite brush and production method thereof'20046,724,124'Rotary electric machine having collar for restricting coil end expansion'20046,700,292'Metal-graphite brush'20046,667,281'Grease composition'20036,647,812'Starter motor having intermediate gear'20036,612,191'Starter with driving lever having lever pin'20036,572,479'Shock absorber'20036,570,283'Rotary electric machine'20036,528,923'Rotary electric machine with stacked brush'20036,486,762'Magnetic switch for starter motor'20026,417,588'Lead wire unit of DC rotary electric machine'20026,404,310'Magnet switch having metal-molded resinous switch cover'20026,371,167'Drain pipe for draining water or the like from casing'20024,673,838'Brush holding device for rotating electrical machines'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to NIPPON DENSO CO (1)· patent assignee history
1987–2007Based in Kariya, JP· patent location history
2002–2007Patents assigned to DENSO CORP (20)· patent assignee history
2003Patents assigned to NIPPON OIL CORP (1)· patent assignee history
2004–2007Patents assigned to TRIS INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DENSO CORP | 20 | 2002–2007 |
| TRIS INC | 3 | 2004–2007 |
| NIPPON DENSO CO | 1 | 1987 |
| NIPPON OIL CORP | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kariya, JP | 21 | 1987–2007 |