Spark plug
US-2025385490-A1 · Dec 18, 2025 · US
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Imai Susumu patents
Imai Susumu is listed as an inventor on 22 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Imai Susumu |
| Total patents | 22 |
| First publication | Jan 1, 2015 |
| Latest publication | Dec 18, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Spark plug
US-2025372960-A1 · Dec 4, 2025 · US
Spark plug
US-2025219360-A1 · Jul 3, 2025 · US
Spark plug
US-12088067-B2 · Sep 10, 2024 · US
Spark plug
US-12080997-B2 · Sep 3, 2024 · US
Spark plug
US-2024250507-A1 · Jul 25, 2024 · US
Spark plug
US-2024243556-A1 · Jul 18, 2024 · US
Spark plug
US-11456578-B2 · Sep 27, 2022 · US
Spark plug
US-2022094141-A1 · Mar 24, 2022 · US
Spark plug with anti-loosening feature
US-11050221-B2 · Jun 29, 2021 · US
Recent patents
Latest publications not already listed above.
Spark plug
US-2020313402-A1 · Oct 1, 2020 · US
Spark plug
US-2020313403-A1 · Oct 1, 2020 · US
Spark plug
US-10790639-B1 · Sep 29, 2020 · US
Ignition plug
US-10720759-B2 · Jul 21, 2020 · US
Method for producing a spark plug including an electrode having a base portion and a tip fixed to the base portion
US-10680416-B2 · Jun 9, 2020 · US
Ignition plug
US-2020083674-A1 · Mar 12, 2020 · US
Spark plug production method
US-2019393683-A1 · Dec 26, 2019 · US
Spark plug
US-10320158-B2 · Jun 11, 2019 · US
Spark plug
US-2017288372-A1 · Oct 5, 2017 · US
Prophylactic or therapeutic agent for oral diseases
US-9730883-B2 · Aug 15, 2017 · US
Spark plug
US-8987981-B2 · Mar 24, 2015 · US
Spark plug
US-2015002011-A1 · Jan 1, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Ngk Spark Plug Co | 14 |
| Niterra Co Ltd | 7 |
| Okumura Takekazu | 1 |
| Terai Tomohiko | 1 |
| Nakao Masumi | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.