Inventor
KUMAGAI MASARU
JP36 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAI MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
20 patentsUS10717295B2Jul 21, 2020
Liquid ejecting apparatus, liquid filling method, and air bubble discharging method
SEIKO EPSON CORP2 citations73
US9616671B2Apr 11, 2017
Cartridge
SEIKO EPSON CORP2 citations73
US9555637B2Jan 31, 2017
Cartridge and liquid supplying method
SEIKO EPSON CORP4 citations73
US10569559B2Feb 25, 2020
Liquid ejecting apparatus
SEIKO EPSON CORP2 citations71
US11981152B2May 14, 2024
Three-dimensional object printing apparatus
SEIKO EPSON CORP0 citations62
US11932035B2Mar 19, 2024
Three-dimensional object printing apparatus
SEIKO EPSON CORP0 citations62
US12447755B2Oct 21, 2025
Three-dimensional object printing apparatus and three-dimensional object printing method
SEIKO EPSON CORP0 citations52
US12325238B2Jun 10, 2025
Printing apparatus
SEIKO EPSON CORP0 citations52
US12296586B2May 13, 2025
Printing device
SEIKO EPSON CORP0 citations52
US12257774B2Mar 25, 2025
Three-dimensional object printing apparatus and three-dimensional object printing method
SEIKO EPSON CORP0 citations52
US12179502B2Dec 31, 2024
Three-dimensional printing device
SEIKO EPSON CORP0 citations52
US11945163B2Apr 2, 2024
Three-dimensional object printing apparatus and three-dimensional object printing method
SEIKO EPSON CORP0 citations52
US11826947B2Nov 28, 2023
3D object print apparatus and method
SEIKO EPSON CORP0 citations52
US9193151B2Nov 24, 2015
Ink jet recording method
SEIKO EPSON CORP0 citations51
US8777393B2Jul 15, 2014
Ink jet recording method
SEIKO EPSON CORP1 citations51
US8807677B2Aug 19, 2014
Printing apparatus and printing method
SEIKO EPSON CORP1 citations50
US10214024B2Feb 26, 2019
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations49
US10661574B2May 26, 2020
Liquid ejecting apparatuses
SEIKO EPSON CORP0 citations42
US9956784B2May 1, 2018
Liquid ejecting apparatus and liquid supply method
SEIKO EPSON CORP0 citations41
US9375932B2Jun 28, 2016
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations41
TDK CORP
4 patentsTOA KOKYU TUGITEVARUBU SEIZO C
3 patentsUS5500510AMar 19, 1996
Method of automatically controlling the fusion process between thermoplastic articles
TOA KOKYU TUGITEVARUBU SEIZO C26 citations91
US5743989AApr 28, 1998
Method of welding plastics sheets together and a joint used therein
TOA KOKYU TUGITEVARUBU SEIZO C17 citations78
US5779843AJul 14, 1998
Method of fusion welding resin articles difficult to melt
TOA KOKYU TUGITEVARUBU SEIZO C15 citations65