Inventor · disambiguated record
Masahiro Ashiba
Also filed as: ASHIBA MASAHIRO
26 granted patents·2 pending applications·811 citations·filing 1982–2018
97Inventor score
Files withTOKICO LTD14HITACHI AUTOMOTIVE SYSTEMS LTD7ASHIBA MASAHIRO4HITACHI ASTEMO LTD1JIDOSHA DENKI KOGYO KK1
Top patents by PatentIndex Score
28 records- 0199US5248014AHydraulic shock absorberTOKICO LTD·Filed 1991·Granted Sep 28, 1993·213 cites·7 claims
- 0296US4437548AShock absorberTOKICO LTD·Filed 1983·Granted Mar 20, 1984·79 cites·21 claims
- 0394US4463839AHydraulic damperTOKICO LTD·Filed 1982·Granted Aug 7, 1984·67 cites·3 claims
- 0493US5386892AHydraulic shock absorber with shuttersTOKICO LTD·Filed 1993·Granted Feb 7, 1995·78 cites·3 claims
- 0592US4591186AHydraulic shock absorbing device of adjustable damping force typeTOKICO LTD·Filed 1984·Granted May 27, 1986·61 cites·4 claims
- 0691US9121524B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Sep 1, 2015·11 cites·11 claims
- 0787US4645042AHydraulic damperJIDOSHA DENKI KOGYO KK·Filed 1984·Granted Feb 24, 1987·43 cites·5 claims
- 0886US8157065B2Shock absorberASHIBA MASAHIRO·Filed 2009·Granted Apr 17, 2012·14 cites·17 claims
- 0985US4997068AHydraulic damper of adjustable damping force typeTOKICO LTD·Filed 1989·Granted Mar 5, 1991·43 cites·4 claims
- 1083US9194455B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Nov 24, 2015·6 cites·15 claims
- 1180US6622832B2Hydraulic shock absorberTOKICO LTD·Filed 2001·Granted Sep 23, 2003·22 cites·18 claims
- 1278US10253840B2Cylinder apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Apr 9, 2019·2 cites·5 claims
- 1374US10711860B2Fluidic damperHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Jul 14, 2020·2 cites·6 claims
- 1472US5368142ADamping force control type of hydraulic shock absorberTOKICO LTD·Filed 1992·Granted Nov 29, 1994·38 cites·4 claims
- 1571US8991570B2Cylinder apparatusASHIBA MASAHIRO·Filed 2012·Granted Mar 31, 2015·3 cites·15 claims
- 1671US5035306AAdjustable damping force hydraulic shock absorberTOKICO LTD·Filed 1989·Granted Jul 30, 1991·34 cites·8 claims
- 1769US11274724B2BufferHITACHI ASTEMO LTD·Filed 2018·Granted Mar 15, 2022·2 cites·4 claims
- 1864US9052015B2Cylinder apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Jun 9, 2015·1 cites·15 claims
- 1964US4485900ADamping force generating mechanism in hydraulic damperTOKICO LTD·Filed 1982·Granted Dec 4, 1984·20 cites·3 claims
- 2063US5064032ADamping force adjusting hydraulic shock absorberTOKICO LTD·Filed 1990·Granted Nov 12, 1991·29 cites·5 claims
- 2159US5205385AAdjustable damping force hydraulic shock absorberTOKICO LTD·Filed 1991·Granted Apr 27, 1993·25 cites·7 claims
- 2255US4800994AHydraulic damper of adjustable damping force typeTOKICO LTD·Filed 1984·Granted Jan 31, 1989·16 cites·2 claims
- 2349US9382964B2Cylinder apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jul 5, 2016·0 cites·20 claims
- 2447US10359115B2Cylinder device and seal memberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jul 23, 2019·0 cites·9 claims
- 2539US2011209957A1Shock absorberASHIBA MASAHIRO·Filed 2011·Application pending·0 cites
- 2638US2011048225A1Cylinder apparatusYOSHIDA TADASHI·Filed 2010·Application pending·0 cites
- 2734US8807301B2Fluid pressure shock absorberASHIBA MASAHIRO·Filed 2009·Granted Aug 19, 2014·0 cites·21 claims
- 2829US4689589AElectromagnetically actuated rotary actuator controlled by a power source switchTOKICO LTD·Filed 1985·Granted Aug 25, 1987·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →