Inventor
TAMAKI SEIJI
JP6 patents
⚠️ This page may combine multiple inventors who share the name “TAMAKI SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TPR CO LTD
5 patentsUS10571024B2Feb 25, 2020
Combination oil ring
TPR CO LTD3 citations68
US10890255B2Jan 12, 2021
Combination oil ring
TPR CO LTD4 citations62
US12577922B2Mar 17, 2026
Cylinder
TPR CO LTD0 citations58
US12116951B2Oct 15, 2024
Cylinder liner and cylinder bore
TPR CO LTD1 citations56
US11680537B2Jun 20, 2023
Cylinder liner and cylinder bore
TPR CO LTD1 citations56