TU

Toshiro Umezaki

KC Koken Co.: 1 patents #1 of 3Top 35%
UN Unknown: 1 patents #344 of 3,329Top 15%
Overall (2021): #226,604 of 548,734Top 45%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11000659 Tracheotomy tube having freely openable/closable lateral hole Tomoyuki Hasegawa, Masatoshi Suda 2021-05-11