Inventor · disambiguated record
Tomotaka Hirota
Also filed as: HIROTA TOMOTAKA
5 granted patents·1 pending application·82 citations·filing 1992–2019
82Inventor score
Top patents by PatentIndex Score
6 records- 0192US10753248B2Exhaust gas purification catalystJOHNSON MATTHEY PLC·Filed 2018·Granted Aug 25, 2020·9 cites·20 claims
- 0281US8999252B2Exhaust gas catalyst and exhaust gas processing apparatus using sameCHO JIN·Filed 2007·Granted Apr 7, 2015·7 cites·18 claims
- 0358US6645439B2Exhaust gas clean-up catalystJOHNSON MATTHEY JAPAN LTD·Filed 1999·Granted Nov 11, 2003·24 cites·9 claims
- 0449US5398504ALayout structure of catalytic convertersMAZDA MOTOR·Filed 1993·Granted Mar 21, 1995·22 cites·18 claims
- 0546US2020102868A1Novel twc catalysts for gasoline exhaust gas applicationsJOHNSON MATTHEY PLC·Filed 2019·Application pending·0 cites
- 0645US5239826AExhaust system for engineMAZDA MOTOR·Filed 1992·Granted Aug 31, 1993·20 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Tomotaka Hirota 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 →