TH

Tsutomu Hirayama

TO Toyota: 3 patents #8,352 of 26,838Top 35%
NC Nippon Electric Co.: 2 patents #117 of 792Top 15%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Overall (All Time): #896,290 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4555641 Pulse signal control circuits with improved turn-off characteristic Hiroshi Hada 1985-11-26
4413596 Engine cooling system with optionally communicable head cooling circuit and block cooling circuit, and method of operating the same 1983-11-08
4381736 Engine cooling system providing mixed or unmixed head and block cooling 1983-05-03
4369738 Engine cooling system with optionally communicable head cooling circuit and block cooling circuit, and method of operating the same 1983-01-25
4359648 Pulse signal control circuits Hiroshi Hada 1982-11-16
4296357 Plasma display system Hiroshi Hada 1981-10-20