YM

Yasuhiro Masumoto

TC The Sailor Pen Co.: 2 patents #2 of 26Top 8%
Overall (All Time): #2,280,642 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5542771 Applicator having cap which pressurizes and seals inner space 1996-08-06
5462379 Applicator having cap which pressurizes and seals inner space Isao Shimada 1995-10-31