Inventor · disambiguated record
Motoyuki Koga
Also filed as: KOGA MOTOYUKI
8 granted patents·270 citations·filing 1980–1990
90Inventor score
Top patents by PatentIndex Score
8 records- 0186US4454173AMethod for lining pipes in a pipelineHAKKO CO·Filed 1983·Granted Jun 12, 1984·47 cites·7 claims
- 0284US4505613AMethod for lining pipes in pipelinesHAKKO CO·Filed 1983·Granted Mar 19, 1985·50 cites·13 claims
- 0384US4454174AMethod for lining pipes of a pipelineHAKKO CO·Filed 1983·Granted Jun 12, 1984·43 cites·3 claims
- 0481US4346922ADevice for preventing leakage at pipe jointsOHTSUGA HISAO·Filed 1980·Granted Aug 31, 1982·67 cites·11 claims
- 0558US4584963ASystem for repairing joints in pipes laid undergroundTOKYO GAS CO LTD·Filed 1984·Granted Apr 29, 1986·22 cites·5 claims
- 0654US5089297AMethod for repairing interior portions of a pipelineHAKKO CO·Filed 1990·Granted Feb 18, 1992·16 cites·5 claims
- 0750US4556580AMethod of repairing pipes laid undergroundTOKYO GAS CO LTD·Filed 1984·Granted Dec 3, 1985·18 cites·4 claims
- 0835US4504204APig for repairing interior portions of a pipelineHAKKO CO·Filed 1983·Granted Mar 12, 1985·7 cites·5 claims
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