Inventor · disambiguated record
Nobuaki Katayama
Also filed as: KATAYAMA NOBUAKI
33 granted patents·597 citations·filing 1974–2004
98Inventor score
Top patents by PatentIndex Score
33 records- 0196US4794942AAir breather plug assembly for use in power transmission unitTOYOTA MOTOR CO LTD·Filed 1987·Granted Jan 3, 1989·99 cites·4 claims
- 0291US4722244ADifferential gear in an automobileTOYOTA MOTOR CO LTD·Filed 1986·Granted Feb 2, 1988·53 cites·8 claims
- 0386US4543842ASelect return mechanism in a manual transmission for automotive vehiclesTOYOTA MOTOR CO LTD·Filed 1983·Granted Oct 1, 1985·36 cites·10 claims
- 0483US4569246AShift lever of a transmission for an automobileTOYOTA MOTOR CO LTD·Filed 1984·Granted Feb 11, 1986·38 cites·4 claims
- 0575US4643045APower transfer device for four wheel driveTOYOTA MOTOR CO LTD·Filed 1984·Granted Feb 17, 1987·25 cites·7 claims
- 0675US4467665ASynchronizing device for transmissionTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 28, 1984·24 cites·9 claims
- 0774US4606238AMounting construction of shift lever retainer casing in change-speed gearing unitTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 19, 1986·24 cites·4 claims
- 0873US4867001AOutput shaft assembly in power transfer deviceTOYOTA MOTOR CO LTD·Filed 1988·Granted Sep 19, 1989·28 cites·4 claims
- 0971US4671136APower transmission for four-wheel drive vehicleTOYOTA MOTOR CO LTD·Filed 1985·Granted Jun 9, 1987·22 cites·5 claims
- 1071US4355543ADevice for supporting a shift lever in a manual transmission for an automobileTOYOTA MOTOR CO LTD·Filed 1980·Granted Oct 26, 1982·24 cites·6 claims
- 1170US4572020ASynchronizer of transmission for vehiclesTOYOTA MOTOR CO LTD·Filed 1983·Granted Feb 25, 1986·21 cites·2 claims
- 1267US4738152APower transmission for automotive vehicleTOYOTA MOTOR CO LTD·Filed 1986·Granted Apr 19, 1988·20 cites·5 claims
- 1366US4697470APower transfer device for four-wheel driveTOYOTA MOTOR CO LTD·Filed 1986·Granted Oct 6, 1987·20 cites·5 claims
- 1463US4240524AOil flow control device for power transmissionsTOYOTA MOTOR CO LTD·Filed 1978·Granted Dec 23, 1980·15 cites·8 claims
- 1562US4645029AFour-wheel vehicle drive systemTOYOTA MOTOR CO LTD·Filed 1985·Granted Feb 24, 1987·18 cites·21 claims
- 1658US4315564ASynchro-mesh type gear transmissionTOYOTA MOTOR CO LTD·Filed 1979·Granted Feb 16, 1982·11 cites·7 claims
- 1756US4360094AGear structure for a manual transmission for an automobileTOYOTA MOTOR CO LTD·Filed 1980·Granted Nov 23, 1982·11 cites·3 claims
- 1855US4669332APower transfer device for four wheel driveTOYOTA MOTOR CO LTD·Filed 1984·Granted Jun 2, 1987·15 cites·4 claims
- 1950US7541427B2Method for desolvation of polymer solutionJSR CORP·Filed 2004·Granted Jun 2, 2009·2 cites·22 claims
- 2050US4299317ASynchro-mesh type gear transmissionTOYOTA MOTOR CO LTD·Filed 1979·Granted Nov 10, 1981·8 cites·4 claims
- 2148US4938307APower transfer device for four-wheel driveTOYOTA MOTOR CO LTD·Filed 1989·Granted Jul 3, 1990·11 cites·2 claims
- 2246US4815336APower transfer device for four-wheel driveTOYOTA MOTOR CO LTD·Filed 1987·Granted Mar 28, 1989·10 cites·3 claims
- 2346US4433593AGear-teeth protector in change-speed gearing unitsTOYOTA MOTOR CO LTD·Filed 1981·Granted Feb 28, 1984·9 cites·3 claims
- 2445US4365523ADie-cast extension housing of automotive transmissionTOYOTA MOTOR CO LTD·Filed 1980·Granted Dec 28, 1982·9 cites·1 claims
- 2544US4302984ARoller bearing assemblyTOYOTA MOTOR CO LTD·Filed 1979·Granted Dec 1, 1981·7 cites·5 claims
- 2642US4400989ALubrication mechanism in change-speed gearing unitTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 30, 1983·7 cites·5 claims
- 2741US3994182ASpeed change gear assemblyTOYOTA MOTOR CO LTD·Filed 1974·Granted Nov 30, 1976·6 cites·5 claims
- 2840US4237745AReverse shift mechanism for power transmission unitTOYOTA MOTOR CO LTD·Filed 1979·Granted Dec 9, 1980·6 cites·4 claims
- 2937US4802383APower transfer device for four-wheel driveTOYOTA MOTOR CO LTD·Filed 1987·Granted Feb 7, 1989·7 cites·6 claims
- 3035US4448089ALubricating device for change-speed gearing unitsTOYOTA MOTOR CO LTD·Filed 1981·Granted May 15, 1984·4 cites·6 claims
- 3130US4384805AFastening arrangement between shaft and gearTOYOTA MOTOR CO LTD·Filed 1981·Granted May 24, 1983·1 cites·3 claims
- 3229US4474074ATransmission with an apparatus for preventing a reverse gear from disengaging from the meshed positionTOYOTA MOTOR CO LTD·Filed 1981·Granted Oct 2, 1984·5 cites·2 claims
- 3329US3964321AFixing device for speed meter driven gearTOYOTA MOTOR CO LTD·Filed 1974·Granted Jun 22, 1976·1 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Nobuaki Katayama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →