Inventor
AMATSUTSU HIROYUKI
JP8 patents
Patents
8 patentsUS6347646B2Feb 19, 2002
Flexible hose
TOTAKU IND61 citations95
US6398270B1Jun 4, 2002
Corrugated pipe joint
TOTAKU IND31 citations91
US6237969B1May 29, 2001
Connector for connecting spirally corrugated pipe to wall
TOTAKU IND22 citations91
US6007110ADec 28, 1999
Bell mouth for annularly corrugated pipe
TOTAKU IND40 citations91
US5832960ANov 10, 1998
Wire harness protector
TOTAKU IND33 citations91
US6340181B1Jan 22, 2002
Bellmouth with joint block body with the bellmouth and hand hole with the bellmouth
TOTAKU IND20 citations82
US6338507B1Jan 15, 2002
Synthetic resin pipe with joint
TOTAKU IND20 citations82
US5950369ASep 14, 1999
Connecting tubular body for handhole or manhole, block body for the tubular body, and handhole or handhole structure
TOTAKU IND10 citations72