Inventor

HIRAI YASUMASA

JP4 patents

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

HIRAI YASUMASA

2 patents

US8894779B2Nov 25, 2014

Bearing steel being excellent both in post spheroidizing-annealing workability and in post quenching-tempering hydrogen fatigue resistance property

HIRAI YASUMASA2 citations54

US9034120B2May 19, 2015

Bearing steel being excellent both in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering

HIRAI YASUMASA0 citations44

SAMSUNG ELECTRONICS CO LTD

1 patent

US5952126ASep 14, 1999

Polymer solid electrolyte and lithium secondary cell adopting the same

SAMSUNG ELECTRONICS CO LTD77 citations94

ISHIHARA SANGYO KAISHA

1 patent

US5512194AApr 30, 1996

Acicular ferromagnetic iron oxide particles and process for producing the same

ISHIHARA SANGYO KAISHA6 citations54