Inventor

HITOTSUYANAGI TOSHIYUKI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “HITOTSUYANAGI TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DAINICHISEIKA COLOR CHEM

2 patents

US11535755B2Dec 27, 2022

Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink

DAINICHISEIKA COLOR CHEM2 citations68

US11773267B2Oct 3, 2023

Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink

DAINICHISEIKA COLOR CHEM0 citations58

SHIMANAKA HIROYUKI

1 patent

US8546502B2Oct 1, 2013

Method for producing dye polymer, dye polymer and use of the same

SHIMANAKA HIROYUKI3 citations60

MURAKAMI YOSHIKAZU

1 patent

US8822591B2Sep 2, 2014

Pigment dispersions

MURAKAMI YOSHIKAZU0 citations44