HK

Haruo Kokubun

HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
IJ Ishikawajima-Harima Jukogyo: 1 patents #170 of 494Top 35%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #2,083,340 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8087903 Hydraulic rotary machine Kazuaki Yokoyama, Yoshinori Takeuchi 2012-01-03
4371149 Apparatus for cooling sheet steel by water spraying Osamu Takeuchi, Hisashi Yoshinaga, Shuichi Hara, Hiromichi Ban 1983-02-01