AY

Akihito Yamagishi

NS NS Sumikin Stainless: 2 patents #32 of 78Top 45%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #1,504,349 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10513747 Ferritic stainless steel sheet exhibiting small increase in strength after aging heat treatment, and method of producing the same Ken Kimura, Junichi Hamada, Eiichiro Ishimaru, Naoto Hansaki 2019-12-24
9289964 High purity ferritic stainless steel sheet excellent in corrosion resistance and anti-glare property Masaharu Hatano, Hiroyuki Matsuyama, Naoto Hansaki, Eiichiro Ishimaru 2016-03-22
5340415 Ferritic stainless steel plates and foils and method for their production Masao Koike, Katsuhiko Maruyama, Shusuke Kakuchi 1994-08-23