Inventor

HAGIWARA KOTARO

JP3 patents

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

SUMITOMO ELECTRIC INDUSTRIES

2 patents

US4753678AJun 28, 1988

Sintered hard metal having superior toughness

SUMITOMO ELECTRIC INDUSTRIES26 citations88

US4274185AJun 23, 1981

Roll assembly for use in rolling a wire rod

SUMITOMO ELECTRIC INDUSTRIES8 citations60

KAWASHIMA TAKASHI

1 patent

US10013696B2Jul 3, 2018

Identification information supervising method, portal information providing apparatus, and IC card

KAWASHIMA TAKASHI0 citations32