Superconductive rotating electric machine drive control system and superconductive rotating electric machine drive control method
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United States of America Patent
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Dec 13, 2011
Grant Date -
Mar 18, 2010
app pub date -
Oct 31, 2007
filing date -
Nov 8, 2006
priority date (Note) -
Expired
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Abstract
in accordance with the variation of the electric power exchanged between the synchronous rotating electric machine and the power unit.
First Claim
all claims..Other Claims data not available
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Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | B2 | JP4882053 | Nov 08, 2006 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | SUPERCONDUCTIVE ROTARY ELECTRIC MACHINE DRIVE CONTROL SYSTEM | Feb 22, 2012 | |||
EP | A1 | EP2117111 | Oct 31, 2007 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | SUPERCONDUCTIVE ROTATING ELECTRIC MACHINE DRIVE CONTROL SYSTEM AND SUPERCONDUCTIVE ROTATING ELECTRIC MACHINE DRIVE CONTROL METHOD | Nov 11, 2009 | |||
WO | A1 | WO2008056580 | Oct 31, 2007 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | SYSTÈME ET PROCÉDÉ DE COMMANDE D'ENTRAÎNEMENT DE MACHINE ÉLECTRIQUE ROTATIVE SUPRACONDUCTRICE | May 15, 2008 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY | TOKYO |
International Classification(s)

- 2007 Application Filing Year
- H02P Class
- 1053 Applications Filed
- 632 Patents Issued To-Date
- 60.02 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Izumi, Mitsuru | Tokyo-To, JP | 12 | 39 |
# of filed Patents : 12 Total Citations : 39 | |||
Maki, Naoki | Ibaraki-Ken, JP | 18 | 235 |
# of filed Patents : 18 Total Citations : 235 |
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- 0 Citation Count
- H02P Class
- 0 % this patent is cited more than
- 14 Age
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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 |
---|---|---|---|
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
US Patent No: 8076894
Superconductive rotating electric machine drive control system and superconductive rotating electric machine drive control method
Abstract
in accordance with the variation of the electric power exchanged between the synchronous rotating electric machine and the power unit.
Description
Claims
Claims data not available

Legal Events
Date | Code | Event | Description |
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Jan 11, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Dec 13, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Dec 13, 2015 |
Dec 13, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jul 24, 2015 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 09, 2013 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 13, 2011 | I | Issuance | |
Mar 18, 2010 | P | Published | |
May 04, 2009 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IZUMI, MITSURU;MAKI, NAOKI;SIGNING DATES FROM 20090406 TO 20090410;REEL/FRAME:022632/0981 Owner name: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY O |
Oct 31, 2007 | F | Filing | |
Nov 08, 2006 | PD | Priority Date |

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