Inventor
KIYOYUKI KAWAI
Inventor
JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Fprimary
F02FCylinders, pistons or casings, for combustion engines43%
F16JPistons36%
B22DCasting of metals14%
C23CCoating metallic material7%
PatentTitleYear
12,577,922Cylinder202612,392,301Piston unit, top land member, and combination of piston unit parts202512,305,590Spiny liner and manufacturing method of same, and method of determining bonding strength202512,092,222Piston ring combination, and internal combustion engine202411,867,295Sliding member202411,141,783Cylinder liner for insert casting2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2026Patents assigned to TPR CO LTD (6)· patent assignee history
2021–2026Patents assigned to TPR IND CO LTD (3)· patent assignee history
2021Patents assigned to IPR IND CO LTD (1)· patent assignee history
2021–2026Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TPR CO LTD | 6 | 2021–2026 |
| TPR IND CO LTD | 3 | 2021–2026 |
| IPR IND CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 6 | 2021–2026 |