Inventor
YOKOYAMA NAOTO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA NAOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
16 patentsUS7589450B2Sep 15, 2009
Actuator device, liquid-jet head and liquid-jet apparatus
SEIKO EPSON CORP23 citations92
US7810915B2Oct 12, 2010
Actuator device, liquid-jet head and liquid-jet apparatus
SEIKO EPSON CORP6 citations73
US10913272B2Feb 9, 2021
Liquid ejecting head and liquid ejecting apparatus
SEIKO EPSON CORP0 citations62
US10500853B2Dec 10, 2019
Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus
SEIKO EPSON CORP1 citations62
US7740345B2Jun 22, 2010
Actuator device, liquid-jet head and liquid-jet apparatus
SEIKO EPSON CORP2 citations62
US7717546B2May 18, 2010
Piezoelectric device and liquid jet head
SEIKO EPSON CORP5 citations62
US11020973B2Jun 1, 2021
Piezoelectric device, liquid ejecting head, liquid ejecting apparatus, and manufacturing method of piezoelectric device
SEIKO EPSON CORP0 citations52
US10737493B2Aug 11, 2020
Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus
SEIKO EPSON CORP0 citations52
US10173421B2Jan 8, 2019
Piezoelectric element, liquid ejecting head, and piezoelectric device
SEIKO EPSON CORP0 citations52
US10134976B2Nov 20, 2018
Piezoelectric element, liquid discharging head provided with piezoelectric element, and liquid discharging apparatus
SEIKO EPSON CORP0 citations52
US9666784B2May 30, 2017
Piezoelectric element, liquid discharging head provided with piezoelectric element, and liquid discharging apparatus
SEIKO EPSON CORP0 citations52
US12484447B2Nov 25, 2025
Piezoelectric actuator, liquid ejecting head, and recording apparatus
SEIKO EPSON CORP0 citations51
US10618283B2Apr 14, 2020
Piezoelectric device, liquid discharge head, and liquid discharge apparatus
SEIKO EPSON CORP0 citations51
US10562302B2Feb 18, 2020
Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device
SEIKO EPSON CORP0 citations42
US9950514B2Apr 24, 2018
Piezoelectric element, liquid ejecting head, and piezoelectric element device
SEIKO EPSON CORP0 citations42
US9865796B2Jan 9, 2018
Method for driving piezoelectric element, piezoelectric element, and piezoelectric element applied device
SEIKO EPSON CORP0 citations41
YOKOYAMA NAOTO
3 patentsUS8485646B2Jul 16, 2013
Liquid ejecting head and liquid ejecting apparatus
YOKOYAMA NAOTO0 citations48
US8444256B2May 21, 2013
Piezoelectric actuator and liquid ejecting head
YOKOYAMA NAOTO0 citations48
US8702197B2Apr 22, 2014
Piezoelectric actuator, liquid ejection head, and liquid ejection apparatus
YOKOYAMA NAOTO0 citations38
TAIYO YUDEN KK
2 patentsUS6900978B2May 31, 2005
Capacitor mounting structure, capacitor-mounted board, and wiring board for use in capacitor mounting
TAIYO YUDEN KK15 citations84
US7107555B2Sep 12, 2006
Method and apparatus for designing high-frequency circuit, and display method for use in designing high-frequency circuit
TAIYO YUDEN KK0 citations42