Engine
US-2025382906-A1 · Dec 18, 2025 · US
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Oso Hiroki patents
Oso Hiroki is listed as an inventor on 33 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Oso Hiroki |
| Total patents | 33 |
| First publication | Sep 29, 2016 |
| Latest publication | Dec 18, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Fuel injection system
US-12366221-B2 · Jul 22, 2025 · US
Diesel engine, diesel engine manufacturing method, and diesel engine injection-amount correction system
US-12221936-B2 · Feb 11, 2025 · US
Electronic fuel injection type diesel engine
US-12085010-B2 · Sep 10, 2024 · US
Diesel engine, diesel engine manufacturing method, and diesel engine injection-amount correction system
US-2024254940-A1 · Aug 1, 2024 · US
Fuel injection system
US-2024254953-A1 · Aug 1, 2024 · US
Electronic fuel injection type diesel engine
US-2024044283-A1 · Feb 8, 2024 · US
Engine head structure
US-11781501-B2 · Oct 10, 2023 · US
Engine head structure
US-2023008602-A1 · Jan 12, 2023 · US
Electronic fuel injection type diesel engine
US-11378001-B2 · Jul 5, 2022 · US
Recent patents
Latest publications not already listed above.
Exhaust system for engine
US-11371414-B2 · Jun 28, 2022 · US
Engine equipped with supercharger
US-11261780-B2 · Mar 1, 2022 · US
Electronic fuel injection type diesel engine
US-2021388754-A1 · Dec 16, 2021 · US
Engine that includes blow-by-gas returning system
US-10982576-B2 · Apr 20, 2021 · US
Exhaust system for engine
US-2020340388-A1 · Oct 29, 2020 · US
Engine stopping device
US-10815911-B2 · Oct 27, 2020 · US
Oil cooling structure of engine
US-10669903-B2 · Jun 2, 2020 · US
Cooling structure of water-cooled engine
US-10641200-B2 · May 5, 2020 · US
Engine equipped with supercharger
US-2020132122-A1 · Apr 30, 2020 · US
Engine that includes blow-by-gas returning system
US-2019345855-A1 · Nov 14, 2019 · US
Engine
US-10415443-B2 · Sep 17, 2019 · US
Engine stopping device
US-2019186386-A1 · Jun 20, 2019 · US
Device with adjustment bolt
US-10323675-B2 · Jun 18, 2019 · US
Piston for engine
US-10161353-B2 · Dec 25, 2018 · US
Engine lubricating device
US-10132215-B2 · Nov 20, 2018 · US
Piston for engine
US-10018147-B2 · Jul 10, 2018 · US
Cooling structure of water-cooled engine
US-2018179984-A1 · Jun 28, 2018 · US
Oil cooling structure of engine
US-2018003093-A1 · Jan 4, 2018 · US
Device with adjustment bolt
US-2017370397-A1 · Dec 28, 2017 · US
Piston for engine
US-2017350344-A1 · Dec 7, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Kubota Kk | 33 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F02M61/14 | 8 |
| Y02T10/12 | 6 |
| F01M5/002 | 4 |
| F02M35/10157 | 4 |
| F01P3/02 | 4 |