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Hitachi in Hong Kong

Hitachi

Corporate Information

Corporate Name Hitachi Media Electronics Co., Ltd.
Address Suit 807, Tower 1, The Gateway, 25 Canton Road, Tsimshatsui, Kln., Hong Kong.
TEL +852-2111-3992
FAX +852-2110-9572
Founded 1994-7-4
Business Overview Manufacture and Sales of Picture and Information Device
More Information

Office Picture

picture:  Office Picture

Major Products & Business Overview

Metal halide lamp type Power Supply for Liquid Crystal Projector.

picture:  Metal halide lamp type Power Supply for Liquid Crystal Projector.

Metal halide lamp lighting and stabilization device. (For use with 150W-300W)
Compact-type, Slim-type, High Quality Design. (Used Original High-voltage transformer)
Numerous internal protection circuits.

Power Supply for Plasma Display Panel

picture:  Power Supply for Plasma Display Panel

Power supply for 40inch plasma display panel.
Active filter circuit built-in. High harmonic current regulation cleared.
Numerous internal protection circuits.

Inverters for liquid crystal display

picture:  Inverters for liquid crystal display

As our highly reliable in-house made inverter transformers and synchronized phase coupling transformers are adopted, our inverters are thin and highly efficient. Custom support for best matching all sorts of cold-cathode tubes is available.

High-voltage Transformers

picture:  High-voltage Transformers

Application : Copy Machine, Printer, Air Cleaner, etc.
Output Voltage : 2kV - 8kV
Drive Circuit : PWM, RCC
Output Circuit : High Voltage Resistor, Detection Resistor and High Voltage Capacitor are built-in.
Remarks : Compact, High Reliability

Step-up Transformer

picture:  Step-up Transformer

Applications : Toner drums used in Copiers, Printers, etc.
Output Voltage : 1kV-3kV
Drive Circuit : PWM style, RCC style
Remarks : Compact, excellent in the dielectric strength and the humidity resistance.

Inverter Transformer

picture:  Inverter Transformer

Application : PS for LC Cold Cathode Tube Displays, etc.
Output Voltage : 2800V (10W) MAX.
Drive Circuit : Inverter Circuit for lighting Backlight.
Remarks: Compact Slim Type, High Dielectric Resistant, Surface Mounting Type, Leakage Method transformer does not need Ballast Capacitor.
The Slim Compact Core Structure of O-I and U-I Type is our utility model right.
(Utility Model Right No. : 2604103)

Switching Transformer

picture:  Switching Transformer

Application : Power Supplies for computers, or OA devices.
Output capacity : 300w MAX.
Drive Circuit : Forward converter system, Many semiconductors type converter system.
Remarks : Compact Slim Type, High Dielectric Resistant, Surface Mounting Type, Based on International Safety standards.

Igniter Transformer

picture:  Igniter Transformer

Application : Power supply of lamps for Liquid Crystal Projector, a boiler, a GAS-range, etc.
Output Voltage : 18kVO-P (Out-put Pulse).
Remarks : Compact, High Reliability.

High-voltage Unit

picture:  High-voltage Unit

Application : air-conditioners, air-cleaners, negative ionizers, deodorizing dust catcher, etc.
Output Voltage : -7kV MAX.
Drive Circuit : RCC system.
Remarks : Compact and high-efficiency, equipped with numerous protection circuits.

Saw Filter EGSM/DCS Dual Band Support.

picture:  Saw Filter EGSM/DCS Dual Band Support.

Block Diagram
For EGSM/DCS Dual Band example
Internal block diagram (EGSM/DCS Rx port Balance output)

Saw Filter EGSM/DCS/PCS Triple Band Support

picture:  Saw Filter EGSM/DCS/PCS Triple Band Support

Block Diagram
For EGSM/DCS/PCS Triple Band example
Internal block diagram (EGSM/DCS/PCS Rx port Balance output)

Saw Filter GSM850/EGSM/DCS/PCS Quad Band

picture:  Saw Filter GSM850/EGSM/DCS/PCS Quad Band

Block Diagram
For GSM850/EGSM/DCS/PCS Quad Band example
Internal block diagram (GSM850/EGSM/DCS/PCS Rx port Balance output) GSM850-Rx and EGSM-Rx switching type

For WCDMA 2.1GHz

picture:  For WCDMA 2.1GHz

For WCDMA 2.1GHz

RF SAW filter for mobile phones

picture:  RF SAW filter for mobile phones

RF SAW filter for mobile phones

SAW Filters for Car Electronics

picture:  SAW Filters for Car Electronics

Used as the bandpass filter for IF and RF circuits in an electronic toll collection (ETC) system, Grobal Positioning System (GPS), and keyless entry system.

2011 Japan Earthquake Donation

2012 Walk for Millions Activity