Inventor
KAWAGUCHI CHIKAKAZU
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KAWAGUCHI CHIKAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DIAFOIL CO LTD
4 patentsUS4990400AFeb 5, 1991
Polyester films, magnetic recording media and film capacitors produced therefrom
DIAFOIL CO LTD45 citations94
US5006589AApr 9, 1991
Polyester film for magnetic recording media
DIAFOIL CO LTD29 citations92
US5106681AApr 21, 1992
Polyester films, magnetic recording media and film capacitors produced therefrom
DIAFOIL CO LTD29 citations91
US4727108AFeb 23, 1988
Polyester compositions and process of preparing polyester films from them
DIAFOIL CO LTD9 citations67
DIAFOIL HOECHST CO LTD
4 patentsUS5670236ASep 23, 1997
Biaxially oriented polyester film for magnetic recording medium
DIAFOIL HOECHST CO LTD9 citations73
US5532049AJul 2, 1996
Magnetic recording medium having a calendered polyester layer with a specified deformation ratio
DIAFOIL HOECHST CO LTD13 citations72
US5314736AMay 24, 1994
Polyethylene terephthalate film for magnetic recording medium containing three different kinds of particles
DIAFOIL HOECHST CO LTD4 citations62
US5324574AJun 28, 1994
Biaxially stretched polyester film
DIAFOIL HOECHST CO LTD4 citations56