Inventor · disambiguated record
Hachiro Doi
Also filed as: DOI HACHIRO · TAKAHASHI KATSUHIKO
12 granted patents·168 citations·filing 1975–1992
92Inventor score
Top patents by PatentIndex Score
12 records- 0180US4090346ALawn mower constructionFUSO LIGHT ALLOYS CO LTD·Filed 1975·Granted May 23, 1978·29 cites·13 claims
- 0276US4520619ALawn mowerFUSO LIGHT ALLOYS CO LTD·Filed 1982·Granted Jun 4, 1985·26 cites·17 claims
- 0375US4322934ALawn mowerFUSO LIGHT ALLOYS CO LTD·Filed 1980·Granted Apr 6, 1982·28 cites·8 claims
- 0467US4706446ALawn mowerFUSO LIGHT ALLOYS CO LTD·Filed 1984·Granted Nov 17, 1987·19 cites·32 claims
- 0560US4262475AMethod and apparatus for collecting grass clippingsFUSO LIGHT ALLOYS CO LTD·Filed 1979·Granted Apr 21, 1981·16 cites·15 claims
- 0654US4890448AMowing blade unitAHRESTY CORP·Filed 1988·Granted Jan 2, 1990·13 cites·5 claims
- 0751US4027463ALawn mowerFUSO LIGHT ALLOYS CO LTD·Filed 1975·Granted Jun 7, 1977·11 cites·6 claims
- 0848US5014765AHeat retaining method for molten metal supplied into injection sleeve, method of applying heat insulating powder onto an inner surface of the injection sleeve, and device thereforAHRESTY CORP·Filed 1989·Granted May 14, 1991·5 cites·3 claims
- 0947US4177963ACord winding apparatusFUSO LIGHT ALLOYS CO LTD·Filed 1978·Granted Dec 11, 1979·8 cites·5 claims
- 1038US4999985AMowing blade unitAHRESTY CORP·Filed 1989·Granted Mar 19, 1991·6 cites·6 claims
- 1135US4126985ALawn mowerFUSO LIGHT ALLOYS CO LTD·Filed 1977·Granted Nov 28, 1978·4 cites·4 claims
- 1230US5331795AMowing cutter unit for mowerAHRESTY CORP·Filed 1992·Granted Jul 26, 1994·3 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Hachiro Doi 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 →