Inventor
YAGI SHUICHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “YAGI SHUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO GAS CO LTD
14 patentsUS5983948ANov 16, 1999
Method of repairing an existing pipeline including a main pipe and a branch pipe
TOKYO GAS CO LTD21 citations92
US5993581ANov 30, 1999
Adhesive composition for bonding a lining tube on to the internal surface of an existing pipe
TOKYO GAS CO LTD21 citations90
US5609186AMar 11, 1997
Methods of lining the internal surface of a pipe
TOKYO GAS CO LTD18 citations89
US5853629ADec 29, 1998
Method of lining the internal surface of a pipe
TOKYO GAS CO LTD15 citations81
US5899636AMay 4, 1999
Reversible lining tube for repairing an existing pipeline
TOKYO GAS CO LTD7 citations73
US5855712AJan 5, 1999
Method of repairing an existing pipe
TOKYO GAS CO LTD7 citations73
US5716672AFeb 10, 1998
Methods of lining the internal surface of a pipe
TOKYO GAS CO LTD5 citations73
US5667841ASep 16, 1997
Methods of lining the internal surface of a pipe
TOKYO GAS CO LTD4 citations73
US5632818AMay 27, 1997
Liquid injection apparatus for use in a method of lining the internal surface of a pipe
TOKYO GAS CO LTD10 citations73
US5873390AFeb 23, 1999
Methods of lining the internal surface of a pipe
TOKYO GAS CO LTD11 citations71
US5740838AApr 21, 1998
Methods of lining the internal surface of a pipe
TOKYO GAS CO LTD8 citations71
US5590689AJan 7, 1997
Method for lining the internal surface of a pipe
TOKYO GAS CO LTD10 citations71
US5700405ADec 23, 1997
Method of lining the internal surface of a pipe
TOKYO GAS CO LTD0 citations51
US5888302AMar 30, 1999
Suction system for use in a method of lining the internal surface of a pipe
TOKYO GAS CO LTD0 citations41
HITACHI LTD
10 patentsUS7603507B2Oct 13, 2009
Storage system and method of storage system path control
HITACHI LTD21 citations91
US7367050B2Apr 29, 2008
Storage device
HITACHI LTD16 citations83
US7185142B2Feb 27, 2007
Storage management method and storage management system
HITACHI LTD5 citations73
US7136939B2Nov 14, 2006
Storage device and method of setting configuration information of same
HITACHI LTD4 citations62
US7877520B2Jan 25, 2011
Storage device and method of setting configuration information of same
HITACHI LTD0 citations52
US7562160B2Jul 14, 2009
Storage device and method of setting configuration information of same
HITACHI LTD0 citations52
US7917704B2Mar 29, 2011
Storage management method and storage management system
HITACHI LTD0 citations51
US7415578B2Aug 19, 2008
Storage management method and storage management system
HITACHI LTD0 citations51
US7287129B2Oct 23, 2007
Storage management method and storage management system
HITACHI LTD0 citations51
US7426517B2Sep 16, 2008
Storage managing method and its device
HITACHI LTD0 citations41
POWDEC KK
3 patentsUS9991335B2Jun 5, 2018
Semiconductor device having a polarization super junction field effect transistor, electric equipment, bidirectional field effect transistor, and mounted structure body having the same
POWDEC KK5 citations67
US12520534B2Jan 6, 2026
Normally-off mode polarization super junction GaN-based field effect transistor and electrical equipment
POWDEC KK0 citations51
US12446250B2Oct 14, 2025
Normally-off mode polarization super junction GaN-based field effect transistor and electrical equipment
POWDEC KK0 citations51