KO

Kazuhiko Okabe

KA Kao: 3 patents #5 of 165Top 4%
Overall (1989): #9,259 of 140,708Top 7%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4885112 Surface active secondary amidoamino acid or salt compounds Kohshiro Sotoya, Makoto Kubo, Masanobu Tanigaki, Masaji Yamanishi, Hajime Hirota 1989-12-05
4846947 Process for preparing an alkanolammonium salt or ammonium salt of surface active agents Kohshiro Sotoya, Makoto Kubo, Masanobu Tanigaki, Masaji Yamanishi 1989-07-11
4845002 Toner for development of electrostatically charged image Masao Niki, Shinichiro Yasuda, Yukinaga Yokota 1989-07-04