Inventor
TATSUTA YOSHIAKI
JP4 patents
Patents
4 patentsUS6367849B1Apr 9, 2002
Joint for corrugated pipe
TOTAKU IND83 citations91
US6131616AOct 17, 2000
Corrugated synthetic resin pipe
TOTAKU IND34 citations89
US6209929B1Apr 3, 2001
Connector for mounting a spiral pipe onto a wall member
TOTAKU IND33 citations86
US6024130AFeb 15, 2000
Synthetic resin pipe
TOTAKU IND12 citations65