Method for manufacturing steel for high-strength hollow spring
US-10526675-B2 · Jan 7, 2020 · US
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Hatano Hitoshi patents
Hatano Hitoshi is listed as an inventor on 9 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hatano Hitoshi |
| Total patents | 9 |
| First publication | May 5, 2015 |
| Latest publication | Jan 7, 2020 |
Notable patents
Publications ranked by popularity score, then publication date.
Hollow seamless steel pipe for spring
US-2018265952-A1 · Sep 20, 2018 · US
Method for manufacturing steel for high-strength hollow spring
US-2017306432-A1 · Oct 26, 2017 · US
Hollow seamless pipe for high-strength springs
US-9689051-B2 · Jun 27, 2017 · US
Seamless steel pipe for hollow spring
US-9650704-B2 · May 16, 2017 · US
Hollow seamless pipe for high-strength spring
US-9429255-B2 · Aug 30, 2016 · US
Hollow seamless pipe for high-strength spring
US-2015285410-A1 · Oct 8, 2015 · US
Seamless steel pipe for hollow spring
US-2015159245-A1 · Jun 11, 2015 · US
Steel for heat treatment
US-9023159-B2 · May 5, 2015 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Kobe Steel Ltd | 10 |
| Shinko Metal Prod | 7 |
| Nhk Spring Co Ltd | 5 |
| Hatano Hitoshi | 2 |
| Toyotake Kotaro | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C22C38/06 | 9 |
| C22C38/001 | 9 |
| C22C38/04 | 9 |
| C22C38/34 | 8 |
| C21D9/02 | 8 |