Hitachi, Ltd.

Atsushi Honzawa

Hiroyuki Higaki

Kazuyuki Tsunoda

Hiroto Takeuchi

Yuichi Kobayashi

Makoto Aikawa

Shinichiro Fukushima

Shigeaki Namba

Masumi Moritani

Yuuichi Kobayashi

Mika Imai

Shigeaki Nanba

Shinichirou Fukushima

Akira Kishida

Plural power storage systemsare provided in a power system. The power storage systemsare connected to a management systemvia a communication network CN. The power storage systems each include a power storage device, and a control devicefor controlling the power storage device. The control device stores performance information about the power storage system including the control device, location information indicating a location in the power system of the power storage system including the control device, and order information indicating an order of operation allocated to the power storage system including the control device. When a disturbance occurs in the power system, the control device performs a predetermined compensation operation based on the location information and the order information, and then returns to a preset stand-by state.

Power grid stabilization system and power grid stabilization method

A system stabilization system for suppressing a power fluctuation in a power system, the system stabilization system including: a power storage apparatus configured to suppressing a power fluctuation in the power system by either charging or discharging in response to a control; a capacitor apparatus configured to suppress a power fluctuation in the power system by making the charge/discharge response to control faster than the power storage apparatus and charging or discharging in response to the control; and a control apparatus configured to control the power storage apparatus and the capacitor apparatus so as to reduce occurrences of charging or discharging in the power storage apparatus.

System stabilization system

Apparatuses and method capable of reliably tracking processes through which products have passed without calling for expensive setup are necessary in production and distribution processes of the products. A process management apparatus including a data transmission/reception unit to and from an RFID tag of an information recording medium and a data generation unit comprises a process data generation unit for representing a process, a process pass certificate data generation unit for generating process data pass certificate data and a transmission/reception unit for the process data with the information recording medium and the process pass certificate data can track the processes through which the object products have passed.

Information recording medium, and process management apparatus and process management system using the information recording medium

A wireless IC memory, for improving the security thereof, for achieving protection of business information and privacy, comprises an RFID tag, wherein it is possible to setup 'readout disenabling (ReadLock)' condition to the UII code bank for storing ID data of the RFID tag, with a predetermined protocol from an external communication apparatus, within the RFID tag. Setup of 'readout disenabling (ReadLock)' condition is stored on a readout enabling/disenabling condition memory portionwithin the RFID tag. In case where the &#x201c;readout disenabling (ReadLock)&#x201d; condition is set up in the UII code bank, a protocol process controller portionof the RFID tag, not responding the UII code, normally, but answers a fake UII code or an error code, or gives no answer, to a request or command of readout of the UII data from the external communication apparatus.

Wireless IC memory, accessing apparatus for use of wireless IC memory, accessing control method for use of wireless IC memory, and wireless IC memory system

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Tokyo, Japan

Atsushi Honzawa