Inventor · disambiguated record
Takeo Hirabayashi
Also filed as: HIRABAYASHI TAKEO · MATSUDA TSUTOMU
3 granted patents·7 citations·filing 1977–1982
60Inventor score
Files withRICOH KK3
Top patents by PatentIndex Score
3 records- 0144US4155762ALiquid developer for binary diazo copying materialsRICOH KK·Filed 1978·Granted May 22, 1979·3 cites·7 claims
- 0233US4119465ADiazo copying material for secondary originalRICOH KK·Filed 1977·Granted Oct 10, 1978·3 cites·8 claims
- 0327US4416967ADiazo copying elementRICOH KK·Filed 1982·Granted Nov 22, 1983·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →