HN

Hiroki Narumiya

NS Nippon Steel: 2 patents #1,308 of 4,423Top 30%
NM Nippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
Overall (All Time): #1,446,851 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10837097 Nitrided part and method of producing same Takahide UMEHARA 2020-11-17
10584783 High-strength gear Osamu Kada, Takashi Fujita, Yutaka Neishi 2020-03-10
10337559 Ball bearing and methods of production of ball bearing Takashi Fujita, Yutaka Neishi 2019-07-02