Communicating anytime, anywhere...
Creating networks that connect everyone and everything

Wireless IC tags will be a key technology of the coming ubiquitous networking era. They will be used in a variety of applications, including automatic wireless data exchange, product information display while shopping, and even automatic payments. To help usher in the age of anytime, anywhere communications, we are creating leading-edge optical and mobile network technologies and developing comprehensive IC tag solutions.

We have succeeded in developing high-reliability DWDM(Dense Wavelength Division Multiplexing) optical transmission systems that can transport immense traffic volumes at high speed. We were the first in the world to achieve terabit-class transmission and the first to develop an optical amplifier that can amplify 1,000 wavelengths simultaneously. We are now developing 40 Gbit/s optical transmission systems and high-performance, low-cost pluggable optical modules. We are also working on network management technologies to simplify high-speed network operation.

Wireless networks are another essential infrastructure underpinning ubiquitous networking. We have developed 3G base stations with power amplifiers that deliver among the world's highest levels of power efficiency. Moreover, we are developing new technologies such as HSDPA(High Speed Downlink Packet Access) systems and multiple-antenna systems to facilitate higher data transfer rates, and we are also working to develop 4G high-speed wireless communications technologies.

• PDF High-Efficiency Transmitter Amplifier (1page, 126KB)

We are advancing research into next-generation web services that weave together desired information from the Internet and deliver it to users, for example, RSS(Rich Site Summary) systems that provide summary notifications to users when websites of interest have added new information. We are also developing services that quickly and accurately extract information tailored to the user's interests from the vast amount of content generated by blogs.

The ability to instantly extract desired information from wireless IC (RFID(Radio Frequency Identification)) tags is giving rise to a host of enhanced applications, such as improving the efficiency of merchandise management and logistics activities. In particular, UHF-band(Ultra-high frequency band) RFID tags, which are capable of reading and writing from a distance of several meters, will enable new services, such as the ability to simultaneously read data from multiple tags.

• PDF Service for Distributing Highlight Scenes (1page, 354KB)

HEMT / CMOS

Combining low power consumption with high amplification, we are developing the world's highest-performance gallium nitride HEMT amplifier for mobile phone base stations. In system chips for mobile devices, we are developing low-power, high-bandwidth analog LSI technology using 90nm CMOS technology.

SAW Filter

We have developed a high performance, low-loss broadband SAW(Surface Acoustic Wave) filter that delivers high-clarity, low-noise communications on mobile phones.

• PDF SAW Filter (1page, 166KB)

MEMS Optical Switch

In optical switching devices for photonic networks, we have succeeded in making a low-power, high-speed 3D MEMS(Micro Electro Mechanical Systems) optical switch that can switch optical paths without electrical conversion. We are currently working on reducing the size of this system and improving its performance even further.

• PDF MEMS Devices (1page, 428KB)

FBAR Filter

A band-pass filter with low insertion loss and steep cut-off is achieved with a ladder type FBAR(Film Bulk Acoustic Resonator) filter.

• PDF FBAR Filter (1page, 192KB)

We are pursuing new innovations by exploiting the unique phenomena and materials found only in the ultra-minute world of the nanometer (1 millionth of a millimeter). This includes development of computers that use quantum phenomena, such as electrons and photons, and research into quantum dots, which are becoming a fundamental element in encryption technology. We are also researching interconnect vias for LSI devices developed by cultivating high-density bundles of carbon nanotubes.

• PDF Carbon Nanotubes (2pages, 454KB)
• PDF Accurate binding energy calculation (1page, 220KB)
• PDF Device for Quantum Cryptography (2pages, 559KB)
• PDF Quantum Dot Lasers (1page, 284KB)