Inventor
SEKINO HIROKAZU
JP34 patents
⚠️ This page may combine multiple inventors who share the name “SEKINO HIROKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
30 patentsUS5507153AApr 16, 1996
Electric motor vehicle
SEIKO EPSON CORP77 citations96
US5632157AMay 27, 1997
Electric automobile
SEIKO EPSON CORP32 citations92
US5345777ASep 13, 1994
Electric automobile
SEIKO EPSON CORP23 citations92
US9402946B2Aug 2, 2016
Liquid ejecting apparatus
SEIKO EPSON CORP6 citations84
US8009846B2Aug 30, 2011
Ultrasonic speaker and projector
SEIKO EPSON CORP9 citations84
US7881489B2Feb 1, 2011
Ultrasonic transducer and ultrasonic speaker using the same
SEIKO EPSON CORP13 citations84
US9737327B2Aug 22, 2017
Fluid ejection device and medical apparatus
SEIKO EPSON CORP2 citations73
US5488837AFeb 6, 1996
Electric automobile
SEIKO EPSON CORP10 citations73
US8045735B2Oct 25, 2011
Ultrasonic transducer and ultrasonic speaker using the same
SEIKO EPSON CORP3 citations63
US7949143B2May 24, 2011
Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer
SEIKO EPSON CORP2 citations63
US7564986B2Jul 21, 2009
Ultrasonic speaker and projector
SEIKO EPSON CORP5 citations63
US7542579B2Jun 2, 2009
Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer
SEIKO EPSON CORP2 citations63
US12441100B2Oct 14, 2025
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations62
US12415361B2Sep 16, 2025
Liquid ejection device
SEIKO EPSON CORP0 citations62
US12383912B2Aug 12, 2025
Liquid jetting nozzle and liquid jetting device
SEIKO EPSON CORP0 citations62
US12343991B2Jul 1, 2025
Processing method and processing apparatus
SEIKO EPSON CORP0 citations62
US11701886B2Jul 18, 2023
Liquid ejection device
SEIKO EPSON CORP0 citations62
US11351795B2Jun 7, 2022
Liquid ejection device
SEIKO EPSON CORP0 citations62
US11235576B2Feb 1, 2022
Liquid ejection device
SEIKO EPSON CORP0 citations62
US6633511B1Oct 14, 2003
Electronic controlling type mechanical timepiece
SEIKO EPSON CORP3 citations62
US12503800B2Dec 23, 2025
Fabric processing device
SEIKO EPSON CORP0 citations52
US11865560B2Jan 9, 2024
Liquid ejection device
SEIKO EPSON CORP0 citations52
US11826767B2Nov 28, 2023
Liquid ejection device
SEIKO EPSON CORP0 citations52
US11745211B2Sep 5, 2023
Liquid ejection device and liquid ejection device control method
SEIKO EPSON CORP0 citations52
US9743948B2Aug 29, 2017
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations52
US9610090B2Apr 4, 2017
Liquid injection device and medical device
SEIKO EPSON CORP0 citations52
US9603617B2Mar 28, 2017
Medical apparatus
SEIKO EPSON CORP0 citations52
US9592517B2Mar 14, 2017
Fluid ejection device system and medical apparatus
SEIKO EPSON CORP1 citations52
US9055968B2Jun 16, 2015
Liquid injection device
SEIKO EPSON CORP0 citations52
US12447479B2Oct 21, 2025
Liquid spray device
SEIKO EPSON CORP0 citations51