TY

Tohru Yokoyama

CC Chiyoda Chemical Entineering & Constructions Co.: 1 patents #41 of 119Top 35%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #2,177,615 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6859779 Communication apparatus — 2005-02-22
4216118 Process for recovering vanadium accumulated on spent catalyst Takechiyo Yoshida, Masato Ushiyama 1980-08-05