Inventor

NAKAYAMA HIROKO

JP3 patents

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

NGK SPARK PLUG CO

2 patents

US11365154B2Jun 21, 2022

Silicon nitride-based sintered body and cutting insert

NGK SPARK PLUG CO1 citations58

US7951737B2May 31, 2011

Aluminum oxide-based composite sintered body and cutting insert

NGK SPARK PLUG CO5 citations58

NAKAYAMA HIROKO

1 patent

US8808414B2Aug 19, 2014

Sialon sintered body and cutting insert

NAKAYAMA HIROKO0 citations37