Inventor
Aihua Ma
Inventor
Shanghai, CN
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals28%
H01FMagnets28%
C22CAlloys24%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel14%
B21BRolling of metal7%
PatentTitleYear
10,844,451High magnetic induction and low iron loss non-oriented electrical steel sheet with good surface state and manufacturing method therefor202010,385,414Non-oriented silicon steel and its manufacturing method201910,176,910Non-oriented silicon steel and manufacturing process thereof201910,147,528Non-oriented electrical steel sheet with fine magnetic performance, and calcium treatment method therefor201810,096,415Non-oriented electrical steel plate and manufacturing process therefor20189,822,423'Method for producing silicon steel normalizing substrate'20179,816,152'Manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic performance'20179,659,694'Non-oriented electrical steel plate and manufacturing process therefor'2017Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017–2020Patents assigned to BAOSHAN IRON & STEEL (7)· patent assignee history
2017–2019Patents assigned to LIU XIANDONG (5)· patent assignee history
2017–2019Patents assigned to MA AIHUA (5)· patent assignee history
2017–2019Patents assigned to XIE SHISHU (5)· patent assignee history
2017–2019Patents assigned to HEI HONGXU (4)· patent assignee history
2017–2020Based in Shanghai, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAOSHAN IRON & STEEL | 7 | 2017–2020 |
| LIU XIANDONG | 5 | 2017–2019 |
| MA AIHUAself | 5 | 2017–2019 |
| XIE SHISHU | 5 | 2017–2019 |
| HEI HONGXU | 4 | 2017–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shanghai, CN | 8 | 2017–2020 |