Inventor · disambiguated record
Koji Umezawa
Also filed as: UMEZAWA KOJI
11 granted patents·1 pending application·84 citations·filing 1993–2024
85Inventor score
Top patents by PatentIndex Score
12 records- 0188US5419217AMachine element with at least a fitting member pressure-fitted on a shaft and method of making the sameNIPPON PISTON RING CO LTD·Filed 1993·Granted May 30, 1995·56 cites·20 claims
- 0279US9181837B2Secondary air supply system for internal combustion engineKONDO SHINYA·Filed 2013·Granted Nov 10, 2015·5 cites·9 claims
- 0370US10626775B2Exhaust purification system of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Granted Apr 21, 2020·1 cites·12 claims
- 0468US12140095B2Controller for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2024·Granted Nov 12, 2024·0 cites·4 claims
- 0566US5598631AMethod of making machine element with at least a fitting member pressure-fitted on a shaftNIPPON PISTON RING CO LTD·Filed 1995·Granted Feb 4, 1997·16 cites·12 claims
- 0661US12421911B2Controller for internal combustion engine and method for controlling internal combustion engineTOYOTA MOTOR CO LTD·Filed 2024·Granted Sep 23, 2025·0 cites·6 claims
- 0759US2024013855A1Method of searching for specific-binding functional substances, specific-binding functional substance search system, specific-binding functional substance search method, and programUNIV SHINSHU·Filed 2021·Application pending·0 cites
- 0857US12123368B2Controller and control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2023·Granted Oct 22, 2024·0 cites·6 claims
- 0955US12146433B2Controller for hydrogen engineTOYOTA MOTOR CO LTD·Filed 2024·Granted Nov 19, 2024·0 cites·5 claims
- 1049US11053825B2Exhaust gas purification apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2019·Granted Jul 6, 2021·0 cites·2 claims
- 1141US5668681AAutomatic-reverse tape player with a switchable rotational gear assemblySONY CORP·Filed 1995·Granted Sep 16, 1997·6 cites·4 claims
- 1228US5541786ALoading apparatus for tape cassette including safety mechanism for protecting cassette housing and hanger structure from damage by externally applied forceSONY CORP·Filed 1994·Granted Jul 30, 1996·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →