YI

Yoshikatu Ishida

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
HD Hitachi Denshi: 2 patents #77 of 275Top 30%
📍 Ibaraki, JP: #3,280 of 6,779 inventorsTop 50%
Overall (All Time): #2,335,969 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4792939 Duplex radio communication transceiver Mitsutaka Hikita, Atsushi Sumioka, Kunihiro Hamada, Yutaka Chiba, Yoshio Abe 1988-12-20
4734664 Surface acoustic wave resonator Mitsutaka Hikita, Atsushi Sumioka 1988-03-29