Kureha Corporation

Tadashi Umetsu

Kenichi Ishii

Shinichi Sekine

Yoshikazu Amano

Asako Saeki

Makoto Unino

Makoto Hideoka

Takayuki Seki

A center portion () of a V-shaped cutter blade () includes center large teeth () and center middle teeththe tooth height of which is less than the tooth height of the center large teeth (). End portions () of the cutter blade () each include first end teeth () and second end teeth () the tooth height of which is less than the tooth height of the first end teeth (). Tooth tops of the first end teethof each end portion () are located on a straight line (L), which extends through tooth tops of the center large teeth () located on one of the right half and the left half of the center portion ().

Cutter blade for packing container and packing container

Growing community of inventors

Tokyo, Japan

Tadashi Umetsu