Inventor · disambiguated record
Hiroshi Hirakawa
Also filed as: HIRAKAWA HIROSHI
15 granted patents·244 citations·filing 1975–1994
94Inventor score
Top patents by PatentIndex Score
15 records- 0181US4349061APneumatic radial tires for passenger cars having a low rolling resistanceBRIDGESTONE TIRE CO LTD·Filed 1980·Granted Sep 14, 1982·36 cites·10 claims
- 0276US4396052ARadial tireYOKOHAMA RUBBER CO LTD·Filed 1981·Granted Aug 2, 1983·28 cites·2 claims
- 0374US4748168ARubber compositions for tire treadsYOKOHAMA RUBBER CO LTD·Filed 1987·Granted May 31, 1988·27 cites·5 claims
- 0472US5264259AEnergy absorbing structureYOKOHAMA RUBBER CO LTD·Filed 1992·Granted Nov 23, 1993·37 cites·17 claims
- 0570US4321168AProcess for preparing rubber composition for tire treadsNIPPON ZEON CO·Filed 1980·Granted Mar 23, 1982·21 cites·8 claims
- 0662US4342670AProcess for preparing rubber compositions for tire treadsYOKOHAMA RUBBER CO LTD·Filed 1980·Granted Aug 3, 1982·16 cites·3 claims
- 0760US4309318ATread compositions for tires having low rolling resistanceYOKOHAMA RUBBER CO LTD·Filed 1979·Granted Jan 5, 1982·14 cites·5 claims
- 0859US4323485ARubber compositions for tire treads having low rolling resistanceYOKOHAMA RUBBER CO LTD·Filed 1980·Granted Apr 6, 1982·14 cites·3 claims
- 0954US4373566APneumatic radial tire having a reduced rolling resistanceBRIDGESTONE TIRE CO LTD·Filed 1981·Granted Feb 15, 1983·13 cites·8 claims
- 1047US5236030APneumatic tire with inner liner of ultra high molecular weight polyethylene film and method of making the sameYOKOHAMA RUBBER CO LTD·Filed 1991·Granted Aug 17, 1993·11 cites·2 claims
- 1146US5405690ARubber-rubber bonded composite structureYOKOHAMA RUBBER CO LTD·Filed 1994·Granted Apr 11, 1995·13 cites·6 claims
- 1243US5370915ARubber-rubber bonded composite structureYOKOHAMA RUBBER CO LTD·Filed 1993·Granted Dec 6, 1994·11 cites·5 claims
- 1330US4026878AVulcanization accelerator system for rubber compositionsYOKOHAMA RUBBER CO LTD·Filed 1975·Granted May 31, 1977·2 cites·25 claims
- 1425US4020252AVulcanization accelerator system for rubber compositionsYOKOHAMA RUBBER CO LTD·Filed 1975·Granted Apr 26, 1977·1 cites·4 claims
- 1524US4026877AVulcanization accelerator system for rubber compositionsYOKOHAMA RUBBER CO LTD·Filed 1975·Granted May 31, 1977·0 cites·22 claims
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