Inventor · disambiguated record
Katsuaki Zenbayashi
Also filed as: ZENBAYASHI KATSUAKI
3 granted patents·151 citations·filing 1980–1986
74Inventor score
Files withTOKYO GAS CO LTD3
Top patents by PatentIndex Score
3 records- 0195US4350548AMethod and apparatus for providing the inner surface of a pipe line with a liningTOKYO GAS CO LTD·Filed 1981·Granted Sep 21, 1982·94 cites·14 claims
- 0285US4334943AMethod for smoothly evaginating a tubular material under pressureTOKYO GAS CO LTD·Filed 1980·Granted Jun 15, 1982·55 cites·15 claims
- 0325US4882470ABoring device for opening passages to branch portions of a lined main pipe lineTOKYO GAS CO LTD·Filed 1986·Granted Nov 21, 1989·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →