Inventor
NAKAOKA MIKIO
JP4 patents
Patents
4 patentsUS5375889ADec 27, 1994
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD67 citations94
US5366253ANov 22, 1994
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD46 citations94
US5150922ASep 29, 1992
Electrofusion joint and hot water supply header using the same
OSAKA GAS CO LTD72 citations94
US6502866B1Jan 7, 2003
One-touch joint for flexible tube
OSAKA GAS CO LTD51 citations85