HH

Hisatoshi Hayakawa

KP Kabushiki Kaisha Pilot: 3 patents #1 of 20Top 5%
Overall (2024): #84,909 of 561,600Top 20%
3
Patents 2024

Issued Patents 2024

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12179510 Friction body unit and thermochromic writing instrument 2024-12-31
12097723 Retractable writing implement 2024-09-24
11912058 Retractable writing instrument 2024-02-27