HOT-ROLLED STEEL SHEET
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
N/A
Issued Date -
Apr 3, 2025
app pub date -
Dec 22, 2022
filing date -
Dec 22, 2022
priority date (Note) -
Published
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
A hot-rolled steel sheet has a predetermined chemical composition, a microstructure at a location of ¼ of a sheet thickness and at a location of 100 μm from a surface comprising, in area %, one or more of martensite and tempered martensite: 95% or more in total, and ferrite, bainite and pearlite: 5% or less in total, and an average dislocation density at the location of 100 μm from the surface is 1.2 times or more of an average dislocation density at the location of ¼ of the sheet thickness.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NIPPON STEEL CORPORATION | TOKYO |
International Classification(s)

- 2022 Application Filing Year
- C21D Class
- 540 Applications Filed
- 88 Patents Issued To-Date
- 16.30 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
HAYASHIDA, Teruki | Tokyo, JP | 13 | 73 |
# of filed Patents : 13 Total Citations : 73 | |||
ITO, Daisuke | Tokyo, JP | 466 | 2877 |
# of filed Patents : 466 Total Citations : 2877 | |||
KUSUMI, Kazuhisa | Tokyo, JP | 26 | 189 |
# of filed Patents : 26 Total Citations : 189 | |||
SAKAKIBARA, Akifumi | Tokyo, JP | 19 | 33 |
# of filed Patents : 19 Total Citations : 33 | |||
YOKOI, Tatsuo | Tokyo, JP | 52 | 376 |
# of filed Patents : 52 Total Citations : 376 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- C21D Class
- 0 % this patent is cited more than
- < 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 3, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 3, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 3, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
- No Legal Status data available.

Matter Detail

Renewals Detail
