KO

Kazuo Osawa

Overall (All Time): #1,044,816 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6435558 Roller ski board — 2002-08-20
5673941 Roller ski board — 1997-10-07
5572806 Flexible ski boots having a pivotal toe portion — 1996-11-12
5195781 Grass ski roller boards — 1993-03-23
5096225 Grass ski roller boards — 1992-03-17