HK

Hidehei Kageyama

KC Kotobuki & Co.: 1 patents #4 of 8Top 50%
Overall (2022): #433,558 of 548,613Top 80%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11390109 Mechanical pencil Takeshi Wakayama 2022-07-19