Inventor · disambiguated record
Toshihiro Koizumi
Also filed as: KOIZUMI TOSHIHIRO
12 granted patents·6 pending applications·13 citations·filing 2009–2022
83Inventor score
Files withKOIZUMI FACTORY CORP5HITACHI AUTOMOTIVE SYSTEMS LTD2KOIZUMI FACTORY2KOIZUMI TOSHIHIRO2HITACHI ASTEMO LTD1
Top patents by PatentIndex Score
18 records- 0185US8684473B2Gear pump and gear pump for brake apparatusNAKAZAWA CHIHARU·Filed 2010·Granted Apr 1, 2014·8 cites·15 claims
- 0269US11173618B2FastnerKOIZUMI FACTORY CORP·Filed 2019·Granted Nov 16, 2021·1 cites·10 claims
- 0361US8257070B2Seal apparatus of gear pumpMARUO RYOHEI·Filed 2009·Granted Sep 4, 2012·3 cites·23 claims
- 0460US11498230B2FastnerKOIZUMI FACTORY CORP·Filed 2019·Granted Nov 15, 2022·0 cites·15 claims
- 0557US12012081B2Brake control apparatusHITACHI ASTEMO LTD·Filed 2019·Granted Jun 18, 2024·0 cites·14 claims
- 0655US12497117B2Bell for bicycleKOIZUMI FACTORY CORP·Filed 2022·Granted Dec 16, 2025·0 cites·7 claims
- 0753US8579616B2Gear pumpKOIZUMI TOSHIHIRO·Filed 2009·Granted Nov 12, 2013·1 cites·30 claims
- 0850US11583119B2Drinking container used for toasting and drinking container serving as bellKOIZUMI FACTORY·Filed 2019·Granted Feb 21, 2023·0 cites·14 claims
- 0948US11922914B2Desk bellKOIZUMI FACTORY CORP·Filed 2020·Granted Mar 5, 2024·0 cites·9 claims
- 1044US2014003981A1Pump DeviceHITACHI AUTOMOBILE SYSTEMS LTD·Filed 2013·Application pending·0 cites
- 1143US2009226298A1Tandem pumpHITACHI LTD·Filed 2009·Application pending·0 cites
- 1242US2012141315A1External Gear PumpSETO SHINJI·Filed 2011·Application pending·0 cites
- 1338US2019152455A1Pressure Pulsation Reducing Device and Pulsation Damping Member of Hydraulic SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 1438US2010247362A1Gear PumpHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2010·Application pending·0 cites
- 1537US9230530B2Rolling element bellKOIZUMI FACTORY·Filed 2013·Granted Jan 5, 2016·0 cites·11 claims
- 1634US2012242140A1Pump deviceKOIZUMI TOSHIHIRO·Filed 2011·Application pending·0 cites
- 1732US11875668B2Information transmission system using bellKOIZUMI FACTORY CORP·Filed 2021·Granted Jan 16, 2024·0 cites·12 claims
- 1832US8894396B2Pump apparatus with pressing meansMISUNOU MASAKI·Filed 2011·Granted Nov 25, 2014·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Toshihiro Koizumi 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 →