Inventor · disambiguated record
Akio Numazawa
Also filed as: ABE RYUTARO · NUMAZAWA AKIO
30 granted patents·708 citations·filing 1977–1995
97Inventor score
Files withTOYOTA MOTOR CO LTD23TOKAI RIKA CO LTD4AISIN SEIKI1MOBIL OIL CORP1TOYODA MACHINE WORKS LTD1
Top patents by PatentIndex Score
30 records- 0197US4860607AAutomatic transmission for automotive vehicleTOYOTA MOTOR CO LTD·Filed 1987·Granted Aug 29, 1989·87 cites·15 claims
- 0297US4474363ASuspension for automobileTOYOTA MOTOR CO LTD·Filed 1982·Granted Oct 2, 1984·141 cites·8 claims
- 0385US4508522ADouble cardan universal jointTOYOTA MOTOR CO LTD·Filed 1983·Granted Apr 2, 1985·30 cites·1 claims
- 0482US4836056AControl apparatus for vehicle power transmitting system including continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 1987·Granted Jun 6, 1989·32 cites·7 claims
- 0581US4404869APower transmission unit for motor vehiclesTOYOTA MOTOR CO LTD·Filed 1981·Granted Sep 20, 1983·30 cites·3 claims
- 0681US4368650ACompact transmission, including a main transmission and a subtransmissionTOYOTA MOTOR CO LTD·Filed 1980·Granted Jan 18, 1983·33 cites·9 claims
- 0777US4287791APower transmission unit for automotive vehiclesTOYOTA MOTOR CO LTD·Filed 1979·Granted Sep 8, 1981·35 cites·2 claims
- 0874US4345904AChain drive assemblyTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 24, 1982·27 cites·16 claims
- 0973US4263823ACompact transmission for use in automobiles having means for counterbalancing internal thrustsTOYOTA MOTOR CO LTD·Filed 1979·Granted Apr 28, 1981·17 cites·20 claims
- 1072US4930373ABrake system for automatic transmissionTOYOTA MOTOR CO LTD·Filed 1988·Granted Jun 5, 1990·22 cites·29 claims
- 1172US4723643APower transmitting system for automotive vehicle, incorporating automatically-operated constant-mesh transmission and clutch deviceTOYOTA MOTOR CO LTD·Filed 1986·Granted Feb 9, 1988·25 cites·6 claims
- 1270US5718449ASide-impact airbag deviceTOKAI RIKA CO LTD·Filed 1995·Granted Feb 17, 1998·34 cites·25 claims
- 1369US4403526AManual transmission and hydraulically operated subtransmissionMOBIL OIL CORP·Filed 1980·Granted Sep 13, 1983·21 cites·4 claims
- 1466US4406176ASteering shaft support deviceTOYOTA MOTOR CO LTD·Filed 1980·Granted Sep 27, 1983·20 cites·3 claims
- 1564US4055237ADisc brake for a vehicleAISIN SEIKI·Filed 1977·Granted Oct 25, 1977·15 cites·3 claims
- 1660US4599051AVane type rotary pumpTOYOTA MOTOR CO LTD·Filed 1985·Granted Jul 8, 1986·16 cites·2 claims
- 1758US4315564ASynchro-mesh type gear transmissionTOYOTA MOTOR CO LTD·Filed 1979·Granted Feb 16, 1982·11 cites·7 claims
- 1857US4258586ACompact transmission for use in automobilesTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 31, 1981·10 cites·12 claims
- 1956US4739864AElectromagnetic powder clutch for use in a power transmitting system having an automatically operated constant-mesh transmissionTOYOTA MOTOR CO LTD·Filed 1986·Granted Apr 26, 1988·12 cites·3 claims
- 2055USH295HShift fork support structure in a manual transmissionTOYOTA MOTOR CO LTD·Filed 1985·Granted Jul 7, 1987·16 cites·3 claims
- 2150US4359910AShift mechanism for power transmissionsTOYOTA MOTOR CO LTD·Filed 1980·Granted Nov 23, 1982·11 cites·5 claims
- 2247US4261217ATransmission equipped with auxiliary speed changing gearTOYOTA MOTOR CO LTD·Filed 1978·Granted Apr 14, 1981·8 cites·2 claims
- 2345US4365523ADie-cast extension housing of automotive transmissionTOYOTA MOTOR CO LTD·Filed 1980·Granted Dec 28, 1982·9 cites·1 claims
- 2444US4406179AApparatus for preloading an antifriction bearing in an automatic transmissionTOYOTA MOTOR CO LTD·Filed 1980·Granted Sep 27, 1983·8 cites·5 claims
- 2542US5174604AWebbing retractorTOKAI RIKA CO LTD·Filed 1991·Granted Dec 29, 1992·12 cites·20 claims
- 2642US4277984ASteering shaft support deviceTOYOTA MOTOR CO LTD·Filed 1979·Granted Jul 14, 1981·7 cites·7 claims
- 2741US4836050ATransverse type automatic transmission with two separate lay shaft elementsTOYOTA MOTOR CO LTD·Filed 1982·Granted Jun 6, 1989·9 cites·9 claims
- 2839US4220072APower steering apparatusTOYODA MACHINE WORKS LTD·Filed 1978·Granted Sep 2, 1980·5 cites·9 claims
- 2932US5337970APreloader for a webbing retractorTOKAI RIKA CO LTD·Filed 1991·Granted Aug 16, 1994·4 cites·12 claims
- 3030US5174521APreloaderTOKAI RIKA CO LTD·Filed 1991·Granted Dec 29, 1992·1 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →