Segmented anvil roller for refining the domain structure of electrical steels
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 16, 1996
Issued Date -
N/A
app pub date -
Jan 25, 1995
filing date -
Nov 17, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a segmented anvil roller and a scribing roll. The segments of the anvil roll are arranged side by side along an arbor. The arbor carries inflatable bladder ribs along the length of the arbor to provide uniform contact pressure to the strip during scribing at the opposite side of the strip by the scribing roll.
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 | |
---|---|---|
ALLEGHENY LUDLUM CORPORATION | PITTSBURGH PENNSYLVANIA 15222-5479 |
International Classification(s)

- 1995 Application Filing Year
- B21B Class
- 135 Applications Filed
- 58 Patents Issued To-Date
- 42.97 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Miller, Robert F | Evans City, PA | 79 | 1007 |
# of filed Patents : 79 Total Citations : 1007 |
Cited Art Landscape
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Patent Citation Ranking
- 9 Citation Count
- B21B Class
- 6.40 % this patent is cited more than
- 29 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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

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Jun 23, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 07, 2014 | P | Published | |
Feb 13, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KASAHARA, SHUNICHI;REEL/FRAME:032395/0413 Owner name: SONY CORPORATION, JAPAN Effective Date: Feb 13, 2014 |
Oct 04, 2012 | F | Filing | |
Nov 16, 2011 | PD | Priority Date |

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