This is a communications technology that uses existing power lines. An adaptor is plugged into an electrical outlet, which when connected to a personal computer enables high-speed access. This means ...[more]

HIRM is an acronym for heat island reduction material. HIRM A is a special coating developed by Kansai Paint to keep down the rise in the surface temperature of asphalt or concrete under the summer ...[more]

This technology aims to use the human body, which can accept an electric charge and send a very small electric current, as a means of communication. Professor Koji Mitsubayashi of the Tokyo ...[more]

Humanoid robots refer to robots that are shaped like humans and can walk on two legs. Japanese manufacturers have created such robots as ASIMO (Honda Motor Co.), TPR (Toyota Motor Corp.) and QRIO ...[more]

HVD is an acronym for holographic versatile disc. These discs use red and blue-green lasers collimated in a single beam. It is a next-general standard for optical discs following Blue-Ray, HD, and ...[more]

This is a low-fuel-consumption, low-polluting train developed by the East Japan Railway Company. It runs on a combination of large batteries installed on the roof and a diesel engine. It began ...[more]

Hydrogen energy is produced when hydrogen undergoes an oxidation reaction. The only end product is water; it has no emissions of toxic substances, such as nitrogen or sulfur oxides, which occur ...[more]

This is a passenger airplane that can travel at a speed of mach 5. The Japan Aerospace Exploration Agency (JAXA) began research on such an aircraft in 2002 and has already conducted a successful ...[more]