KH

Kei Hiruma

SE Seiko Epson: 4 patents #40 of 926Top 5%
📍 Chino, JP: #5 of 51 inventorsTop 10%
Overall (2025): #33,778 of 469,880Top 8%
4
Patents 2025

Issued Patents 2025

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12344749 Water-based composition and coloring method Mitsunobu NAKATANI, Tomoyuki Ushiyama 2025-07-01
12305046 Ink jet ink composition and ink jet printing method Mitsunobu NAKATANI, Tomoyuki Ushiyama, Kenta TSUKADA 2025-05-20
12291641 Metal pigment composition and coloring method Hiroaki Kida, Shintaro ASAI, Tomoyuki Ushiyama, Mitsunobu NAKATANI, Kenta TSUKADA 2025-05-06
12264250 Coloring composition and coloring method Shintaro ASAI, Hiroaki Kida, Tomoyuki Ushiyama, Mitsunobu NAKATANI, Kenta TSUKADA 2025-04-01