TK

Takaichi Koyama

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Overall (All Time): #1,681,426 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4440339 Method of repairing housing of control rod driving system Yasumasa Tamai 1984-04-03
4311556 Method and system for inspection of inside of nuclear reactor vessel Taro Iwamoto, Shimon Ando, Sho Kusumoto, Tsutomu Omae, Toshitaka Suzuki +3 more 1982-01-19
4262517 Method of correcting distorted pipe end Hideaki Kamohara, Yuji Yoshitomi, Yasumasa Tamai 1981-04-21