HN

Hiroko Nakayama

Ngk Spark Plug Co.: 3 patents #540 of 1,594Top 35%
Overall (All Time): #1,416,287 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11365154 Silicon nitride-based sintered body and cutting insert Atsushi Komura 2022-06-21
8808414 Sialon sintered body and cutting insert Ryoji Toyoda 2014-08-19
7951737 Aluminum oxide-based composite sintered body and cutting insert Kazuhiro Urashima 2011-05-31