HT

Hiroyuki Tadokoro

HI Hitachi: 24 patents #1,340 of 28,497Top 5%
HC Hitachi Information Technology Co.: 1 patents #20 of 121Top 20%
CC Clarion Co.: 1 patents #397 of 721Top 60%
NU National University Corporation Yokohama National University: 1 patents #54 of 244Top 25%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
NC Nippon Steel Chemical Co.: 1 patents #136 of 380Top 40%
HC Hitachi Setsubi Engineering Co.: 1 patents #6 of 24Top 25%
Overall (All Time): #144,134 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
4475069 Door operation control apparatus Shigeru Matsuoka, Koji Yamauchi 1984-10-02
4367470 Door operation control apparatus Shigeru Matsuoka, Koji Yamauchi 1983-01-04