Inventor
Yoshiaki Koyama
Inventor
Saitama, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines22%
F01MLubricating of machines or engines in general11%
F02FCylinders, pistons or casings, for combustion engines11%
B05CApparatus for applying fluent materials to surfaces, in general6%
B05DProcesses for applying fluent materials to surfaces, in general6%
B22DCasting of metals6%
B60GVehicle suspension arrangements6%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%
F01LCyclically operating valves for machines or engines6%
F16FSprings6%
PatentTitleYear
11,065,641Coil spring manufacturing method and coil spring manufacturing device20218,770,169'Cover member to engines'20147,931,004'Oil sensor placement structure in engine'20117,882,819'Engine'20117,014,924'Metal member to be cast-wrapped'20067,011,068'Accessory mounting structure for internal combustion engine'20066,568,363'Auxiliary machinery mounting structure of an engine'20035,813,381'Harness holder fixing structure in engine'19984,664,336'Motor control apparatus for reel-to-reel tape drive system'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to FUJITSU LTD (1)· patent assignee history
1987Based in Kawasaki, JP· patent location history
1998–2014Patents assigned to HONDA MOTOR CO LTD (7)· patent assignee history
1998–2011Based in Saitama, JP· patent location history
2003–2014Based in Wako, JP· patent location history
2014Patents assigned to KOYAMA YOSHIAKI (1)· patent assignee history
2021Patents assigned to NHK SPRING CO LTD (1)· patent assignee history
2021Based in Kitakami, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HONDA MOTOR CO LTD | 7 | 1998–2014 |
| FUJITSU LTD | 1 | 1987 |
| KOYAMA YOSHIAKIself | 1 | 2014 |
| NHK SPRING CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 4 | 1998–2011 |
| Wako, JP | 3 | 2003–2014 |
| Kitakami, JP | 1 | 2021 |
| Kawasaki, JP | 1 | 1987 |