Inventor
FUKUOKA MASAYUKI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “FUKUOKA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HARADA SHIGEYUKI
5 patentsUS10370548B2Aug 6, 2019
Copolymer, ink including copolymer, and ink-stored container
HARADA SHIGEYUKI0 citations51
US10035869B2Jul 31, 2018
Copolymer, aqueous ink, and ink cartridge
HARADA SHIGEYUKI0 citations51
US9422437B2Aug 23, 2016
Copolymer, aqueous ink, and ink cartridge
HARADA SHIGEYUKI0 citations51
US9416284B2Aug 16, 2016
Copolymer, aqueous ink, and ink cartridge
HARADA SHIGEYUKI0 citations51
US9365670B2Jun 14, 2016
Copolymer, aqueous ink, and ink cartridge
HARADA SHIGEYUKI0 citations51
RICOH CO LTD
3 patentsUS11292932B2Apr 5, 2022
Ink set, recording device, and method of recording
RICOH CO LTD0 citations62
US9850335B2Dec 26, 2017
Copolymer, aqueous ink, and ink cartridge
RICOH CO LTD0 citations52
US10457079B2Oct 29, 2019
Ink, inkjet recording method, ink cartridge, and image recording device
RICOH CO LTD0 citations50
MATSUYAMA AKIHIKO
3 patentsUS10280321B2May 7, 2019
Ink, ink container, inkjet recording device, and recorded matter
MATSUYAMA AKIHIKO0 citations51
US9988543B2Jun 5, 2018
Ink, ink stored container, inkjet recording apparatus, and recorded matter
MATSUYAMA AKIHIKO0 citations51
US9617439B2Apr 11, 2017
Ink composition, ink cartridge, ink recording device, and recorded matter
MATSUYAMA AKIHIKO0 citations41