Masafumi Okumura

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Residual quantity display system
- Patent number 9,575,131
- Issue date Feb 21, 2017
- Fujitsu Limited
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Grant
Battery remaining capacity predicting apparatus
- Patent number 8,232,770
- Issue date Jul 31, 2012
- Fujitsu Limited
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Grant
Battery control device, battery control method, battery pack, elect...
- Patent number 7,693,671
- Issue date Apr 6, 2010
- Fujitsu Limited
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Grant
Protection method, control circuit, and battery unit
- Patent number 7,276,881
- Issue date Oct 2, 2007
- Fujitsu Limited
- Masafumi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery unit having means for preventing over-discharge
- Patent number 6,885,168
- Issue date Apr 26, 2005
- Fujitsu Limited
- Masafumi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic equipment and battery unit
- Patent number 6,498,459
- Issue date Dec 24, 2002
- Fujitsu Limited
- Masafumi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protection method, control circuit, and battery unit
- Patent number 6,492,791
- Issue date Dec 10, 2002
- Fujitsu Limited
- Mitsuo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charging-and-discharging device for an electronic apparatus, and an...
- Patent number 6,008,629
- Issue date Dec 28, 1999
- Fujitsu Limited
- Mituo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device having low internal power consumption and elect...
- Patent number 5,872,445
- Issue date Feb 16, 1999
- Fujitsu Limited
- Hidekiyo Ozawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus and electronic appliance equipped with the p...
- Patent number 5,717,256
- Issue date Feb 10, 1998
- Fujitsu Limited
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Grant
Remove power source device having improved capacity indication capa...
- Patent number 5,625,237
- Issue date Apr 29, 1997
- Fujitsu Limited
- Mituo Saeki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery protection circuit and battery pack and apparatus using the...
- Patent number 5,608,304
- Issue date Mar 4, 1997
- Fujitsu Limited
- Masafumi Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
RESIDUAL QUANTITY DISPLAY SYSTEM
- Publication number 20120185190
- Publication date Jul 19, 2012
- FUJITSU LIMITED
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Application
CHARGING CONTROL APPARATUS CONTROLLING CHARGING CURRENT AND CONTROL...
- Publication number 20090153100
- Publication date Jun 18, 2009
- FUJITSU LIMITED
- Masafumi OKUMURA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY REMAINING CAPACITY PREDICTING APPARATUS
- Publication number 20080180062
- Publication date Jul 31, 2008
- FUJITSU LIMITED
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Application
BATTERY CONTROL DEVICE, BATTERY CONTROL METHOD, BATTERY PACK, ELECT...
- Publication number 20080120049
- Publication date May 22, 2008
- FUJITSU LIMITED
- Masafumi OKUMURA
- G01 - MEASURING TESTING
Information Patent Application
Anomaly detection method of battery pack, battery pack and electron...
- Publication number 20070052424
- Publication date Mar 8, 2007
- FUJITSU LIMITED
- Masafumi Okumura
- G01 - MEASURING TESTING
Information Patent Application
Protection method, control circuit, and battery unit
- Publication number 20030030413
- Publication date Feb 13, 2003
- FUJITSU LIMITED
- Mitsuo Saeki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Status display control unit, electronic equipment and storage medium
- Publication number 20020140627
- Publication date Oct 3, 2002
- FUJITSU LIMITED
- Hisashi Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Status display control unit, electronic equipment and storage medium
- Publication number 20010028366
- Publication date Oct 11, 2001
- Hisashi Ohki
- G06 - COMPUTING CALCULATING COUNTING

Masafumi Okumura

Person

Patents Grantslast 30 patents

Residual quantity display system

Battery remaining capacity predicting apparatus

Battery control device, battery control method, battery pack, elect...

Protection method, control circuit, and battery unit

Battery unit having means for preventing over-discharge

Electronic equipment and battery unit

Protection method, control circuit, and battery unit

Charging-and-discharging device for an electronic apparatus, and an...

Power supply device having low internal power consumption and elect...

Power supply apparatus and electronic appliance equipped with the p...

Remove power source device having improved capacity indication capa...

Battery protection circuit and battery pack and apparatus using the...

Patents Applicationslast 30 patents

RESIDUAL QUANTITY DISPLAY SYSTEM

CHARGING CONTROL APPARATUS CONTROLLING CHARGING CURRENT AND CONTROL...

BATTERY REMAINING CAPACITY PREDICTING APPARATUS

BATTERY CONTROL DEVICE, BATTERY CONTROL METHOD, BATTERY PACK, ELECT...

Anomaly detection method of battery pack, battery pack and electron...

Protection method, control circuit, and battery unit

Status display control unit, electronic equipment and storage medium

Status display control unit, electronic equipment and storage medium