Inventor
OKAWA SOSHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “OKAWA SOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
15 patentsUS9855761B2Jan 2, 2018
Ink tank unit, ink jet printer, and ink tank
SEIKO EPSON CORP5 citations82
US9815295B2Nov 14, 2017
Tank, tank unit, liquid ejection system, and liquid ejection apparatus
SEIKO EPSON CORP6 citations73
US9555641B2Jan 31, 2017
Liquid supply system
SEIKO EPSON CORP2 citations72
US9487012B2Nov 8, 2016
Ink tank unit, ink jet printer, and ink tank
SEIKO EPSON CORP3 citations71
US10293613B2May 21, 2019
Multifunction peripheral
SEIKO EPSON CORP1 citations62
US12287226B2Apr 29, 2025
Rotation detection device, medium transport device, and recording device
SEIKO EPSON CORP0 citations61
US11485158B2Nov 1, 2022
Transport apparatus and recording apparatus
SEIKO EPSON CORP0 citations59
US10682859B2Jun 16, 2020
Multifunction peripheral
SEIKO EPSON CORP0 citations51
US11780697B2Oct 10, 2023
Recording apparatus
SEIKO EPSON CORP0 citations47
US12214667B2Feb 4, 2025
Power transmission mechanism and liquid ejecting device
SEIKO EPSON CORP0 citations44
US12404125B2Sep 2, 2025
Medium conveying device
SEIKO EPSON CORP0 citations42
US10272703B2Apr 30, 2019
Printing apparatus
SEIKO EPSON CORP0 citations41
US10245858B2Apr 2, 2019
Printing apparatus
SEIKO EPSON CORP0 citations41
US9840079B2Dec 12, 2017
Recording apparatus
SEIKO EPSON CORP0 citations41
US10183491B2Jan 22, 2019
Cap attached to ink tank of printer
SEIKO EPSON CORP0 citations37