Nakai; Koichi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Nakai; Koichi.The latest application filed is for "operation device and work vehicle".

Company Profile

2.5.5

Nakai; Koichi - Sakai JP
NAKAI; Koichi - Sakai-City JP
Nakai; Koichi - Saitama-ken JP
Nakai; Koichi - Hyogo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Operation device and work vehicle Grant 10,969,003 - Nakai , et al. April 6, 2	2021-04-06
Operation Device And Work Vehicle App 20200292063 - NAKAI; Koichi ; et al.	2020-09-17
Switching power supply circuit Grant 8,027,176 - Nakai September 27, 2	2011-09-27
Switching power supply circuit App 20100085780 - Nakai; Koichi	2010-04-08
Dust collection unit for electric vacuum cleaner and upright electric vacuum cleaner Grant 7,655,060 - Nakai , et al. February 2, 2	2010-02-02
Dust collection unit for electric vacuum cleaner and upright electric vacuum cleaner App 20070084165 - Nakai; Koichi ; et al.	2007-04-19
Electric vacuum cleaner equipped with a dust collection unit Grant 7,175,682 - Nakai , et al. February 13, 2	2007-02-13
Electric vacuum cleaner equipped with a dust collection unit Grant 7,014,675 - Nakai , et al. March 21, 2	2006-03-21
Electric vacuum cleaner equipped with a dust collection unit App 20050223518 - Nakai, Koichi ; et al.	2005-10-13
Electric vacuum cleaner equipped with a dust collection unit App 20030121121 - Nakai, Koichi ; et al.	2003-07-03

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