HK

Hidehei Kageyama

KC Kotobuki & Co.: 3 patents #1 of 4Top 25%
Overall (2021): #81,317 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11090969 Mechanical pencil Tadao Odaka, Toshikazu Sasaki 2021-08-17
11065907 Hand tools, cosmetic devices and writing instruments Takeshi Wakayama 2021-07-20
D908796 Sleeve for a mechanical pencil Takeshi Wakayama 2021-01-26