AK

Atsunori Koyama

NS Nippon Steel: 2 patents #1,308 of 4,423Top 30%
NM Nippon Steel & Sumitomo Metal: 2 patents #488 of 1,491Top 35%
DK Denki Kagaku Kogyo: 1 patents #291 of 655Top 45%
Overall (All Time): #1,217,966 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10414695 Monolithic refractory Tsuyoshi Matsui, Koji Goda, Yoshitaka Sadatomi, Tsubasa Nakamichi 2019-09-17
8835338 Binder for monolithic refractories, monolithic refractory, and construction method of monolithic refractories Yoshitoshi Saito 2014-09-16
8673797 Binder for monolithic refractories and monolithic refractory Yoshitoshi Saito 2014-03-18
8309483 Binder for monolithic refractories and monolithic refractory Yoshitoshi Saito 2012-11-13