HK

Hitoshi Kagiwada

HC Hitachi Construction Machinery Co.: 4 patents #303 of 1,234Top 25%
📍 Ibaraki, JP: #2,214 of 6,779 inventorsTop 35%
Overall (All Time): #1,272,558 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6389809 Volume control valve of variable displacement hydraulic rotating machine Takashi Niidome, Takeshi Kobayashi 2002-05-21
6119580 Swash plate type hydraulic rotating machine and method of manufacturing casing for same Hitoshi Sato, Kenichi Kimura 2000-09-19
5197283 Hydraulic-motor drive circuit system with anti-cavitation control Tomohiko Yasuoka 1993-03-30
5177964 Hydraulic drive traveling system Hideaki Tanaka, Toichi Hirata, Genroku Sugiyama, Tomohiko Yasuoka, Hiroshi Watanabe +2 more 1993-01-12