Inventor
SUYAMA KIICHI
JP11 patents
Patents
11 patentsUS5736821AApr 7, 1998
Intrapipe work robot apparatus and method of measuring position of intrapipe work robot
TOKYO GAS CO LTD161 citations98
US5963042AOct 5, 1999
Method for inspecting the elements of piping systems by electromagnetic waves
TOKYO GAS CO LTD44 citations95
US6008657ADec 28, 1999
Method for inspecting the elements of piping systems by electromagnetic waves
TOKYO GAS CO LTD23 citations92
US6005396ADec 21, 1999
Method for inspecting the elements of piping systems by electromagnetic waves
TOKYO GAS CO LTD20 citations92
US6123027ASep 26, 2000
Self-propelled vehicle within pipe
TOKYO GAS CO LTD59 citations91
US5773984AJun 30, 1998
Method of inspecting abnormality occurring inside pipe and apparatus for practicing the method
TOKYO GAS CO LTD46 citations89
US6008658ADec 28, 1999
Method for inspecting the elements of piping systems by electromagnetic waves
TOKYO GAS CO LTD16 citations81
US5990690ANov 23, 1999
Method for inspecting the elements of piping systems BT electromagnetic waves
TOKYO GAS CO LTD4 citations73
US5612625AMar 18, 1997
Method of measuring inner diameter of pipe
TOKYO GAS CO LTD8 citations70
US5966016AOct 12, 1999
Method for inspecting the elements of piping systems by electromagnetic waves
TOKYO GAS CO LTD3 citations62
US6895681B2May 24, 2005
Method and instrument for measuring inside diameter of conduit
TOKYO GAS CO LTD4 citations51