P

Inventor

TOTSUGI AKIHITO

JP4 patents
⚠️ This page may combine multiple inventors who share the name “TOTSUGI AKIHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WATERWORKS TECHNOLOGY DEV ORG

3 patents
US6019396AFeb 1, 2000

Pipe connecting apparatus

WATERWORKS TECHNOLOGY DEV ORG44 citations89
US6659511B2Dec 9, 2003

Flexible fluid-transport pipe joint apparatus

WATERWORKS TECHNOLOGY DEV ORG18 citations78
US6773040B2Aug 10, 2004

Spacer-less type pipe joint and packing ring used for the same

WATERWORKS TECHNOLOGY DEV ORG6 citations60

SAKAI ATSUSHI

1 patent
US8186648B2May 29, 2012

Method of shutting off conduit and pipe conduit shutoff apparatus

SAKAI ATSUSHI2 citations60