HK

Hiroshi Koma

HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
📍 Tsuchiura, JP: #340 of 519 inventorsTop 70%
Overall (All Time): #3,949,469 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4735523 Vibratory compaction working machine Yasuaki Ishikawa, Hirokazu Miyagawa, Shiro Murakami, Yutaka Ikeda, Yoshifumi Itou 1988-04-05