Refresh charging method for an assembled battery constituted from a plurality of lead-acid storage batteries and charging apparatus
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United States of America Patent
Stats
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Aug 18, 2015
Grant Date -
Nov 20, 2014
app pub date -
Sep 3, 2012
filing date -
Sep 3, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided are a refresh charging method and a refresh charging apparatus for an assembled battery constituted from lead-acid storage batteries, by which a necessary charging rate may be performed while shortening a charging period. In a constant voltage charging mode, n intermediate threshold values S1 to Sn which decrease stepwisely are set between a predetermined threshold value S0 and a lower-limit current value, and n additional timer periods T1 to Tn are set where n is an integer equal to or larger than one. Counting of the n additional timer periods T1 to Tn is respectively started when the charging current reaches the n intermediate threshold values S1 to Sn. A maximum timer period Tm and the n additional timer periods T1 to Tn are set to satisfy a relationship of Tm>T1> . . . >Tn. Charging is stopped when the counting of one of the maximum timer period Tm and the n additional timer periods T1 to Tn is completed before the lower-limit current value is detected.
First Claim
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Family

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

- 2012 Application Filing Year
- H02J Class
- 3166 Applications Filed
- 2735 Patents Issued To-Date
- 86.39 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mitani, Katsura | Nara, JP | 5 | 10 |
# of filed Patents : 5 Total Citations : 10 | |||
Sano, Shinichi | Mie, JP | 24 | 362 |
# of filed Patents : 24 Total Citations : 362 | |||
Wakatabe, Hiroyuki | Mie, JP | 5 | 10 |
# of filed Patents : 5 Total Citations : 10 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- H02J Class
- 8.76 % this patent is cited more than
- 10 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 18, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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
Date | Code | Event | Description |
---|---|---|---|
Oct 16, 2024 | AS | ASSIGNMENT | free format text: ADDRESS CHANGE;ASSIGNOR:RESONAC CORPORATION;REEL/FRAME:069775/0492 Owner name: RESONAC CORPORATION, JAPAN Effective Date: Oct 02, 2023 free format text: CHANGE OF NAME;ASSIGNOR:SHOWA DENKO MATERIALS CO., LTD.;REEL/FRAME:069775/0284 Owner name: RESONAC CORPORATION, JAPAN Effective Date: Jan 12, 2023 free format text: CHANGE OF NAME;ASSIGNOR:HITACHI CHEMICAL COMPANY, LTD.;REEL/FRAME:069775/0236 Owner name: SHOWA DENKO MATERIALS CO., LTD., JAPAN Effective Date: Oct 08, 2020 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RESONAC CORPORATION;REEL/FRAME:069676/0687 Owner name: ENERGYWITH CO., LTD., JAPAN Effective Date: Oct 16, 2024 |
Feb 08, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Feb 11, 2019 | 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 04, 2016 | AS | ASSIGNMENT | free format text: MERGER;ASSIGNOR:SHIN-KOBE ELECTRIC MACHINERY CO., LTD.;REEL/FRAME:069751/0265 Owner name: HITACHI CHEMICAL COMPANY, LTD., JAPAN Effective Date: Jan 04, 2016 |
Aug 18, 2015 | I | Issuance | |
Jul 29, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 20, 2014 | P | Published | |
Mar 08, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WAKATABE, HIROYUKI;SANO, SHINICHI;MITANI, KATSURA;REEL/FRAME:030034/0158 Owner name: SHIN-KOBE ELECTRIC MACHINERY CO., LTD., JAPAN Effective Date: Mar 08, 2013 |
Sep 03, 2012 | F | Filing |

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