epitex image Epitex Inc is a leading Japanese producer of Visible and Infrared LEDs, optical sensors and other optoelectronic devices Standard and custom made products Competitive prices Quick delivery World-wide service.

Activitiestitle image

Trade mark EPITEX INC.
Head office location 66-3, Minamikawabe-Cho, Higashi-Kujyou, Minami-Ku, Kyoto, Japan
Tel: ++81-75-682-2338 Fax:++81-75-682-2267
Web site:
Establishment date 07/1989
Capital 20,000,000
Yearly turnover 850 million yen FY2010
Employee Twenty-one persons
Correspondent bank Sumitomo Mitsui Banking Corporation, Kuzuha Branch
UFJ Banking Corporation, Kyotoekimae Branch
Tokyo Mitsubishi Banking Corporation, Kyoto Branch
Representative director Katsunori Maeda
Map 66-3, Minamikawabe-Cho, Higashi-Kujyou, Minami-Ku, Kyoto, Japan

Historytitle image

Research, development and production of Opto-sensor and Custom LED
Sales worldwide of semiconductor material and LED
Sales of semiconductor manufacturing equipment (III/V and II/VI)

1989 Research & development of LEDs was started at Hirakta-city, Osaka
1990 SiC Blue LED was successful in research and development
1991 High power IR LED commenced production
1992 Visible sensor of GaAlAs current-confined type was developed
1993 Full colour (RGB) dot-matrix display commenced production
1.3µm InP-LED commenced mass production
Ultra-bright Red LED started mass production
1994 Sensor-use LED lamp started production on an automatic assembly line
1.3µm InGaAs Photodiode was successful in development
1997 High speed and High power IR LED was developed
1998 Bicolour LED started production
Chip LED of SMD type( SMC) started production
Multi-wavelength LED including 975nm for medical use started production
Top flat type of mold LED started production
CCD chip process was renewed successfully
2000 New type of SMD in plastic package (COB) started production
2002 TOP LED started for production
2005 We acquired ISO9001:2000

Technologytitle image

State-of-the art LPE mass-production - Original design equipment

High R&D capability in opto-sensors and custom LED -Development and innovation

Additional R&D facility and equipment for optoelectronic devices

A leader in both production and R&D - Over 30 years experience of related technology in III-V semiconductors


Originalitytitle image

Original design equipment - High quality GaAlAs (DDH) epitaxial growth

Sophisticated chip process

First to achieve mass production capability in GaAlAs (DDH) chip

Improved radiant intensity of GaAlAs (DDH) LED lamp with revolutionary

new technology - Intensity is improved by precision assembly technology


Competitivenesstitle image

Advanced mass production reduces production cost - Multi-wafer epitaxy capability for GaAlAs (DDH)

Experienced engineering for best customer support - Ability to 'work with customer' for product innovation and new applications

Geared for expansion to meet rising demand

Technical collaboration with leading edge customers


Facilitiestitle image

Production Line (Epitaxial growth)

-LPE epitaxial growth equipment -Evaporator

-Electron beam evaporator

-Plasma Chemical Vapour Deposition equipment

-Radio frequency source

-Thermal treatment furnace

Assembly Line (Chip process, resin molding)

-Fully automatic die bonder

-Fully automatic wire bonder

-Manual wire bonder

-Automatic epoxy dispenser





-Surface step measuring machine

-Carrier concentration profiler

-Curve tracer

-Automatic wafer probing machine

Quality Control

-Optical spectrum analyzer

-Metal microscope


-High speed digitizing oscilloscope

-Pulse/Function generator

-Curve tracer

-LED Chip sorter

-LED Lamp sorter

-Powermeter (with integrating sphere)

-Photometer (brightness measurement)


-RO method-ultra pure water supplier

-Oil-free rotary compressor

-Hydrogen gas purifier

-Nitrogen gas purifier