Naoki HIRAI

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Nagoya-City, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for determining drop in capacity of sodium—sulfur battery
- Patent number 9,026,388
- Issue date May 5, 2015
- NGK Insulators, Ltd.
- Naoki Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for accurately and precisely calculating state of charge of...
- Patent number 8,957,640
- Issue date Feb 17, 2015
- NGK Insulators, Ltd.
- Naoki Hirai
- G01 - MEASURING TESTING
Information Patent Grant
Method for calculating number of healthy strings of sodium-sulfur b...
- Patent number 8,914,243
- Issue date Dec 16, 2014
- NGK Insulators, Ltd.
- Naoki Hirai
- G01 - MEASURING TESTING
Information Patent Grant
End-of-discharge voltage correction device and end-of-discharge vol...
- Patent number 8,866,446
- Issue date Oct 21, 2014
- NGK Insulators, Ltd.
- Kazuhito Furuta
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Temperature increasing method for sodium-sulfur battery
- Patent number 8,257,846
- Issue date Sep 4, 2012
- NGK Insulators, Ltd.
- Naoki Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for controlling sodium-sulfur battery
- Patent number 8,163,407
- Issue date Apr 24, 2012
- NGK Insulators, Ltd.
- Naoki Hirai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
END-OF-DISCHARGE VOLTAGE CORRECTION DEVICE AND END-OF-DISCHARGE VOL...
- Publication number 20120086403
- Publication date Apr 12, 2012
- NGK Insulators, Ltd.
- Kazuhito FURUTA
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
METHOD FOR CALCULATING NUMBER OF HEALTHY STRINGS OF SODIUM-SULFUR B...
- Publication number 20120041690
- Publication date Feb 16, 2012
- NGK Insulators, Ltd.
- Naoki HIRAI
- G01 - MEASURING TESTING
Information Patent Application
METHOD FOR CALCULATING STATE OF CHARGE OF SODIUM-SULFUR BATTERY
- Publication number 20110313699
- Publication date Dec 22, 2011
- NGK Insulators, Ltd.
- Naoki HIRAI
- G01 - MEASURING TESTING
Information Patent Application
METHOD FOR DETERMINING DROP IN CAPACITY OF SODIUM-SULFUR BATTERY
- Publication number 20110295534
- Publication date Dec 1, 2011
- NGK Insulators, Ltd.
- Naoki Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TEMPERATURE INCREASING METHOD FOR SODIUM-SULFUR BATTERY
- Publication number 20110262781
- Publication date Oct 27, 2011
- NGK Insulators, Ltd.
- Naoki HIRAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR CONTROLLING SODIUM-SULFUR BATTERY
- Publication number 20110206955
- Publication date Aug 25, 2011
- NGK Insulators, Ltd.
- Naoki HIRAI
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...