RK

Ryozo Kikkawa

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HC Hitachi Engineering & Services Co.: 1 patents #59 of 129Top 50%
HC Hitachi Nuclear Engineering Co.: 1 patents #3 of 32Top 10%
Overall (All Time): #1,638,113 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5732362 Method for treating radioactive laundry waste water Tatsuo Izumida, Hiroyuki Tsuchiya, Yoshimasa Kiuchi, Yasuo Hattori 1998-03-24
4629587 Solidifying disposal system for radioactive waste Keishi Monden, Susumu Horiuchi 1986-12-16
4437933 Apparatus for treating radioactive liquid wastes Masaki Takeshima 1984-03-20