Inventor
EJIRI YUKI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “EJIRI YUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
8 patentsUS6932051B2Aug 23, 2005
Throttle valve opening and closing device
HITACHI LTD17 citations92
US5188073AFeb 23, 1993
Fluid control valve, valve support member therefor and idling air amount control apparatus for automobile using the fluid control valve
HITACHI LTD32 citations92
US4735179AApr 5, 1988
Automatic control apparatus for engine throttle valve
HITACHI LTD29 citations92
US7040283B2May 9, 2006
Throttle valve opening and closing device
HITACHI LTD5 citations73
US4747380AMay 31, 1988
Throttle valve control device for internal combustion engines
HITACHI LTD19 citations73
US7243635B2Jul 17, 2007
Throttle valve opening and closing device
HITACHI LTD3 citations62
US7174877B2Feb 13, 2007
Throttle valve opening and closing device
HITACHI LTD0 citations51
US7117844B2Oct 10, 2006
Connecting structure between rotary shaft and metal plate and method of connecting therebetween
HITACHI LTD1 citations51
BITKEY INC
5 patentsUS12406096B2Sep 2, 2025
Utilization management device, utilization management method, and program
BITKEY INC0 citations50
US12219059B2Feb 4, 2025
Utilization management system, management device, utilization control device, user terminal, utilization management method, and program
BITKEY INC0 citations50
US12170733B2Dec 17, 2024
Utilization management system, management device, utilization control device, utilization management method, and computer-readable program
BITKEY INC0 citations50
US11971973B2Apr 30, 2024
Uilization control system, use permit issuance device, uilization control method, and computer-readable program
BITKEY INC0 citations50
US11956625B2Apr 9, 2024
Utilization control system and utilization control method
BITKEY INC0 citations50