Inventor

TSUJIOKA MASANORI

JP5 patents

⚠️ This page may combine multiple inventors who share the name “TSUJIOKA MASANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON ITF INC

2 patents

US10458548B2Oct 29, 2019

Piston ring and method for manufacturing same

NIPPON ITF INC2 citations70

US10634249B2Apr 28, 2020

Piston ring and engine

NIPPON ITF INC0 citations49

IDEMITSU KOSAN CO

2 patents

US9803155B2Oct 31, 2017

Lubricating oil composition, and sliding mechanism using lubricating oil composition

IDEMITSU KOSAN CO0 citations36

US9593291B2Mar 14, 2017

Lubricating oil composition, and sliding mechanism using lubricating oil composition

IDEMITSU KOSAN CO0 citations36

SUMITOMO ELECTRIC INDUSTRIES

1 patent

US5574959ANov 12, 1996

Metal casing for semiconductor device having high thermal conductivity and thermal expansion coefficient

SUMITOMO ELECTRIC INDUSTRIES22 citations83