Inventor · disambiguated record
Koichi Nakai
Also filed as: NAKAI KOICHI
6 granted patents·189 citations·filing 2000–2020
84Inventor score
Top patents by PatentIndex Score
6 records- 0196US7175682B2Electric vacuum cleaner equipped with a dust collection unitSANYO ELECTRIC CO·Filed 2005·Granted Feb 13, 2007·133 cites·10 claims
- 0286US7655060B2Dust collection unit for electric vacuum cleaner and upright electric vacuum cleanerSANYO ELECTRIC CO·Filed 2006·Granted Feb 2, 2010·17 cites·17 claims
- 0376US7014675B2Electric vacuum cleaner equipped with a dust collection unitSANYO ELECTRIC CO·Filed 2002·Granted Mar 21, 2006·21 cites·5 claims
- 0462US6336244B1Electric blower and electric cleaning device using the sameSANYO ELECTRIC CO·Filed 2000·Granted Jan 8, 2002·15 cites·9 claims
- 0556US10969003B2Operation device and work vehicleKUBOTA KK·Filed 2020·Granted Apr 6, 2021·0 cites·19 claims
- 0645US8027176B2Switching power supply circuitK A C JAPAN CO LTD·Filed 2008·Granted Sep 27, 2011·3 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Koichi Nakai 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 →