Cladded aluminum-alloy material and production method therefor, and heat exchanger using said cladded aluminum-alloy material and production method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 22, 2018
Issued Date -
N/A
app pub date -
Dec 17, 2014
filing date -
Jan 10, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A highly corrosion resistant and highly formable cladded aluminum-alloy material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present cladded aluminum-alloy material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the intermediate layer material surface which is not at the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 μm or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in a plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.
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 | |
---|---|---|
UACJ CORPORATION | 7-2 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 100-0004 |
International Classification(s)
- B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
- F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....
- C22F:CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS MET....
- B22D:CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY ....
- C22C:ALLOYS
- B21B:ROLLING OF METAL
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....

- 2014 Application Filing Year
- B23K Class
- 2150 Applications Filed
- 1756 Patents Issued To-Date
- 81.68 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ando, Makoto | Tokyo, JP | 174 | 3099 |
# of filed Patents : 174 Total Citations : 3099 | |||
Niikura, Akio | Tokyo, JP | 26 | 126 |
# of filed Patents : 26 Total Citations : 126 | |||
Yanagawa, Yutaka | Tokyo, JP | 31 | 666 |
# of filed Patents : 31 Total Citations : 666 |
Cited Art Landscape
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Patent Citation Ranking
- 4 Citation Count
- B23K Class
- 37.97 % this patent is cited more than
- 7 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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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 22, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 22, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Legal Events
Date | Code | Event | Description |
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Sep 30, 2024 | AS | ASSIGNMENT | free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:SEIKO INSTRUMENTS INC.;REEL/FRAME:069183/0051 Owner name: SEIKO WATCH CORPORATION, JAPAN Effective Date: Sep 30, 2024 |
Nov 03, 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 |
May 15, 2018 | I | Issuance | |
Apr 25, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 23, 2017 | P | Published | |
Aug 16, 2016 | F | Filing | |
Jul 26, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAKAI, SATOSHI;MUGISHIMA, KATSUYA;IHASHI, TOMOHIRO;AND OTHERS;REEL/FRAME:039453/0824 Owner name: SEIKO INSTRUMENTS INC., JAPAN Effective Date: Jul 26, 2016 |
Aug 21, 2015 | PD | Priority Date |

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