KO

Katsumi Osaka

AC Awa Paper Mfg. Co.: 2 patents #3 of 27Top 15%
TK Toyo Roki Seizo Kabushiki Kaisha: 1 patents #32 of 69Top 50%
📍 Tokushima, JP: #544 of 1,059 inventorsTop 55%
Overall (All Time): #1,964,034 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10080995 Membrane support material Akihiro Okubo, Daisuke Fujieda 2018-09-25
6336947 Air filter Yutaka Atsumi, Jun Suzuki, Takeo Jo 2002-01-08