Inventor · disambiguated record
Masaaki Itagaki
Also filed as: ITAGAKI MASAAKI
15 granted patents·155 citations·filing 1993–1998
93Inventor score
Files withTOKYO GAS CO LTD15
Top patents by PatentIndex Score
15 records- 0155US5983948AMethod of repairing an existing pipeline including a main pipe and a branch pipeTOKYO GAS CO LTD·Filed 1998·Granted Nov 16, 1999·21 cites·5 claims
- 0255US5853629AMethod of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Dec 29, 1998·15 cites·1 claims
- 0355US5609186AMethods of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1995·Granted Mar 11, 1997·18 cites·6 claims
- 0454US5993581AAdhesive composition for bonding a lining tube on to the internal surface of an existing pipeTOKYO GAS CO LTD·Filed 1998·Granted Nov 30, 1999·21 cites·20 claims
- 0549US5447664AMethod of lining an inner surface of a pipeTOKYO GAS CO LTD·Filed 1993·Granted Sep 5, 1995·18 cites·7 claims
- 0643US5873390AMethods of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Feb 23, 1999·11 cites·5 claims
- 0739US5632818ALiquid injection apparatus for use in a method of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1995·Granted May 27, 1997·10 cites·8 claims
- 0838US5899636AReversible lining tube for repairing an existing pipelineTOKYO GAS CO LTD·Filed 1997·Granted May 4, 1999·7 cites·10 claims
- 0938US5855712AMethod of repairing an existing pipeTOKYO GAS CO LTD·Filed 1996·Granted Jan 5, 1999·7 cites·7 claims
- 1038US5590689AMethod for lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Jan 7, 1997·10 cites·10 claims
- 1137US5740838AMethods of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Apr 21, 1998·8 cites·2 claims
- 1235US5716672AMethods of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Feb 10, 1998·5 cites·3 claims
- 1334US5667841AMethods of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1996·Granted Sep 16, 1997·4 cites·2 claims
- 1429US5888302ASuction system for use in a method of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1995·Granted Mar 30, 1999·0 cites·10 claims
- 1529US5700405AMethod of lining the internal surface of a pipeTOKYO GAS CO LTD·Filed 1995·Granted Dec 23, 1997·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →