Inventor · disambiguated record
Hajime Iwasaki
Also filed as: IWASAKI HAJIME
3 granted patents·68 citations·filing 1975–1979
73Inventor score
Top patents by PatentIndex Score
3 records- 0181US4230762AAsphalt water-proofing materialMITSUI PETROCHEMICAL IND·Filed 1979·Granted Oct 28, 1980·29 cites·10 claims
- 0276US4035544AAsphalt roofing and method of making sameMITSUBOSHI SANGYO KABUSHIKI KA·Filed 1975·Granted Jul 12, 1977·22 cites·5 claims
- 0345US4107375ABulky asphalt-impregnated sheet having different properties on both surfacesMITSUBOSHI IND·Filed 1976·Granted Aug 15, 1978·17 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →