SH

Shigeo Hirai

HM Hitachi Maxell: 3 patents #330 of 1,211Top 30%
📍 Toyohashi, JP: #385 of 1,141 inventorsTop 35%
Overall (All Time): #1,681,899 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4456475 Process for preparing ferromagnetic particles comprising metallic iron Toshinobu Sueyoshi, Masahiro Amemiya 1984-06-26
4400337 Method for production of metal magnetic particles Yukihiro Hayashi, Toshinobu Sueyoshi, Mikio Kishimoto, Katsunori Tashita, Masahiro Amemiya 1983-08-23
4390361 Process for preparing ferromagnetic particles comprising metallic iron Toshinobu Sueyoshi, Masahiro Amemiya 1983-06-28