Exhaust gas purification device and method for manufacturing exhaust gas purification device
US-2025381525-A1 · Dec 18, 2025 · US
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Nihashi Hiroki patents
Nihashi Hiroki is listed as an inventor on 21 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Nihashi Hiroki |
| Total patents | 21 |
| First publication | Dec 17, 2020 |
| Latest publication | Dec 18, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Exhaust gas purification device and method for manufacturing exhaust gas purification device
US-2025276309-A1 · Sep 4, 2025 · US
Supported catalyst particles
US-2025058302-A1 · Feb 20, 2025 · US
Supported catalyst particles
US-12214334-B2 · Feb 4, 2025 · US
Exhaust gas purification device and method for manufacturing exhaust gas purification device
US-2024017246-A1 · Jan 18, 2024 · US
Exhaust gas purification device and method for manufacturing exhaust gas purification device
US-2023372917-A1 · Nov 23, 2023 · US
Method for producing exhaust gas purification material and method for manufacturing exhaust gas purification device
US-2023372907-A1 · Nov 23, 2023 · US
Exhaust gas purification catalyst
US-11821349-B2 · Nov 21, 2023 · US
Exhaust gas purification catalyst
US-11719144-B2 · Aug 8, 2023 · US
Exhaust gas purification catalyst
US-11577226-B2 · Feb 14, 2023 · US
Recent patents
Latest publications not already listed above.
Exhaust gas purification catalyst
US-11534737-B2 · Dec 27, 2022 · US
Exhaust gas control catalyst
US-11426710-B2 · Aug 30, 2022 · US
Exhaust gas purification catalyst
US-11400436-B2 · Aug 2, 2022 · US
Supported catalyst particles
US-2022134313-A1 · May 5, 2022 · US
Exhaust gas purification catalyst
US-2021277814-A1 · Sep 9, 2021 · US
Exhaust gas purification catalyst
US-2021205790-A1 · Jul 8, 2021 · US
Exhaust gas purification catalyst
US-2021199037-A1 · Jul 1, 2021 · US
Exhaust gas purification catalyst
US-2021197176-A1 · Jul 1, 2021 · US
Exhaust gas control catalyst
US-2021197175-A1 · Jul 1, 2021 · US
Exhaust gas purification catalyst
US-2021046457-A1 · Feb 18, 2021 · US
Exhaust gas cleaning catalyst, exhaust gas cleaning method, and exhaust gas cleaning system
US-2020391186-A1 · Dec 17, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cataler Corp | 21 |
| Toyota Motor Co Ltd | 19 |
| Shirakawa Shogo | 10 |
| Nihashi Hiroki | 10 |
| Nishio Takahiro | 8 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B01J35/45 | 18 |
| B01J23/464 | 18 |
| B01D2255/1025 | 15 |
| B01J35/393 | 14 |
| B01J2235/30 | 14 |