Steel material
US-2025382687-A1 · Dec 18, 2025 · US
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Miyanishi Kei patents
Miyanishi Kei is listed as an inventor on 37 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Miyanishi Kei |
| Total patents | 37 |
| First publication | Feb 12, 2015 |
| Latest publication | Dec 18, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Steel material
US-2024352566-A1 · Oct 24, 2024 · US
Tracked undercarriage component, and method for producing the same
US-12098450-B2 · Sep 24, 2024 · US
Steel material and component
US-12006557-B2 · Jun 11, 2024 · US
Steel near-net-shape material and method for producing same
US-2023151472-A1 · May 18, 2023 · US
Bearing steel component, and steel bar for bearing steel component
US-11459630-B2 · Oct 4, 2022 · US
Steel material and component
US-2022145416-A1 · May 12, 2022 · US
Impact and wear resistant component, and method for producing the same
US-2022025475-A1 · Jan 27, 2022 · US
Tracked undercarriage component, and method for producing the same
US-2021316801-A1 · Oct 14, 2021 · US
Steel component, gear component, and producing method for steel component
US-10889870-B2 · Jan 12, 2021 · US
Recent patents
Latest publications not already listed above.
Bearing steel component, and steel bar for bearing steel component
US-2020407816-A1 · Dec 31, 2020 · US
Carburized bearing steel component and steel bar for carburized bearing steel component
US-2020340072-A1 · Oct 29, 2020 · US
Steel for induction hardening
US-10808304-B2 · Oct 20, 2020 · US
Steel for induction hardening
US-10801091-B2 · Oct 13, 2020 · US
Steel for induction hardening
US-10793937-B2 · Oct 6, 2020 · US
Steel for Induction Hardening
US-2019300993-A1 · Oct 3, 2019 · US
Steel for Induction Hardening
US-2019300992-A1 · Oct 3, 2019 · US
Steel for Induction Hardening
US-2019300994-A1 · Oct 3, 2019 · US
Steel for Induction Hardening
US-2019241997-A1 · Aug 8, 2019 · US
Steel for Induction Hardening
US-2019153574-A1 · May 23, 2019 · US
Steel component, gear component, and producing method for steel component
US-2019078171-A1 · Mar 14, 2019 · US
Case hardening steel, carburized component, and manufacturing method of case hardening steel
US-2019002999-A1 · Jan 3, 2019 · US
Steel for machine structural use and induction-hardened steel component
US-2018291487-A1 · Oct 11, 2018 · US
Steel for induction hardening roughly shaped material for induction hardening
US-9890446-B2 · Feb 13, 2018 · US
Steel for surface hardening for machine structural use and part for machine structural use
US-9777343-B2 · Oct 3, 2017 · US
Steel for induction hardening
US-2017067140-A1 · Mar 9, 2017 · US
Hot forging use non-heat-treated steel and hot forged non-heat-treated steel part
US-9487848-B2 · Nov 8, 2016 · US
Steel wire rod or steel bar having excellent cold forgeability
US-9476112-B2 · Oct 25, 2016 · US
Hot forging use non-heat-treated steel and hot forged non-heat-treated steel part
US-2016251743-A1 · Sep 1, 2016 · US
Hot forging use non-heat-treated steel and hot forged non-heat-treated steel part
US-9376738-B2 · Jun 28, 2016 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Nippon Steel & Sumitomo Metal Corp | 26 |
| Nippon Steel Corp | 15 |
| Miyanishi Kei | 5 |
| Hashimura Masayuki | 3 |
| Kubota Manabu | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C22C38/02 | 37 |
| C22C38/04 | 37 |
| C22C38/001 | 35 |
| C22C38/002 | 34 |
| C22C38/06 | 34 |