Inventor

KAMADA YOSHIHIKO

JP3 patents

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

SUMITOMO METAL IND

2 patents

US6083455AJul 4, 2000

Steels, steel products for nitriding, nitrided steel parts

SUMITOMO METAL IND41 citations89

US7416616B2Aug 26, 2008

Non-heat treated steel for soft-nitriding

SUMITOMO METAL IND4 citations57

SUMITOMO METALS KOKURA LTD

1 patent

US6391124B1May 21, 2002

Non-heat treated, soft-nitrided steel parts

SUMITOMO METALS KOKURA LTD3 citations53