YS

Yoshio Sakai

HI Hitachi: 2 patents #87 of 1,214Top 8%
Overall (1982): #5,923 of 81,411Top 8%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4361866 Power converter apparatus Seiya Shima, Hiroaki Kuroha, Takeki Ando, Toshiaki Kurosawa, Hiromi Inaba 1982-11-30
4355374 Semiconductor memory device Mitsumasa Koyanagi, Hideo Sunami, Norikazu Hashimoto 1982-10-19