Inventor · disambiguated record
Katsu Hirosawa
Also filed as: HIROSAWA KATSU
4 granted patents·86 citations·filing 1976–1981
78Inventor score
Files withKOMATSU MFG CO LTD4
Top patents by PatentIndex Score
4 records- 0185US4393607AHydraulic excavatorKOMATSU MFG CO LTD·Filed 1981·Granted Jul 19, 1983·43 cites·3 claims
- 0268US4047387AMethod of forming a subterranean water barrier and a plow for use therewithKOMATSU MFG CO LTD·Filed 1976·Granted Sep 13, 1977·22 cites·18 claims
- 0356US4145155APaving material extrusion molding apparatusKOMATSU MFG CO LTD·Filed 1977·Granted Mar 20, 1979·17 cites·11 claims
- 0432US4159890APaving material extrusion molding apparatusKOMATSU MFG CO LTD·Filed 1977·Granted Jul 3, 1979·4 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when Katsu Hirosawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →