Inventor
Shigenobu Uchiyama
Inventor
Iwata, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Lprimary
F01LCyclically operating valves for machines or engines27%
F02FCylinders, pistons or casings, for combustion engines27%
F01MLubricating of machines or engines in general9%
F02BInternal-combustion piston engines9%
F16JPistons9%
Y02TClimate change mitigation technologies related to transportation9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
7,797,829'Oil ring, manufacturing method thereof, and piston structure using the oil ring'20106,691,658'Rotation prevention structure of a valve lifter for an internal combustion engine'20046,481,398'High-low speed range switching type valve mechanism for internal combustion engine'20025,765,531'Multi-valve engine'19985,718,196'Lubrication and camshaft control system for engine'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2004Patents assigned to YAMAHA MOTOR CO LTD (4)· patent assignee history
1998–2004Based in Iwata, JP· patent location history
2010Patents assigned to RIKEN KK (1)· patent assignee history
2010Based in Shizuoka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| YAMAHA MOTOR CO LTD | 4 | 1998–2004 |
| RIKEN KK | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Iwata, JP | 4 | 1998–2004 |
| Shizuoka, JP | 1 | 2010 |