Fujitsu Corporation

Ajinomoto Co., Ltd.

Kazuhiro Satoh

Masahiro Aota

Tetsuya Hanawa

Masahiro Konno

Hiroyuki Nagatani

Yoshimi Nagano

Takao Suganuma

Shinichi Wakayama

Nozomu Nyui

Masao Ikeda

Seiji Komatuda

A power switching unit of a portable telephone which has a function of storing data such as telephone numbers and operates with a battery. The unit comprises a battery for supplying power to a radio unit and a control unit which contains a data storage function and controls operation of the radio unit, first voltage monitor means for monitoring a supply voltage of the battery to output a first voltage drop signal when the supply voltage falls below a first predetermined value, and communication disconnection means for stopping power supply to the radio unit upon reception of the first voltage drop signal. The power switching unit of the portable telephone further includes voltage adjustment means for adjusting voltage suppled to the control unit from the battery to a predetermined operating voltage of the control unit for supplying it to the control unit.

Power switching unit of a portable telephone capable of monitoring and controlling a battery supply voltage thereof

A control apparatus for controlling a memory unit having an electrically erasable nonvolatile memory for storing information used in a process in an electrical equipment and a flash memory storing a processing program for executing the process in the electrical equipment. The control apparatus includes a loading program for loading information into the flash memory, which program is stored in the electrically erasable nonvolatile memory, a memory selecting circuit for selecting the flash memory when a first selecting information is supplied thereto, and selecting the electrically erasable nonvolatile memory when a second selecting information is supplied thereto, and a loading unit for supplying the second selecting information to the memory selecting circuit under a condition in which a program voltage is supplied from an external power supply thereto and for loading information in accordance with the loading program stored in the electrically erasable nonvolatile memory selected by the memory selecting circuit.

Control apparatus for controlling memory unit capable of selecting an

Crystals of an amino acid, a nucleic acid or a derivative thereof can be efficiently isolated and purified at low cost from a solution containing the crystals, bacterial cells and medium components by using a liquid cyclone.

Method for purification of amino acids, nucleic acids using a

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Kawasaki, Japan

Kazuhiro Satoh