TOKYO (Reuters) - The revelation that Japan's third-biggest steelmaker Kobe Steel Ltd (>> Kobe Steel, Ltd.) fabricated data for some of its aluminium and copper products has left affected manufacturers scrambling to pin down the potential impact.

The products were shipped to around 200 companies which include some of Japan's most recognizable names:

AUTOMAKERS

Automakers affected by Kobe Steel's announcement include Toyota Motor Corp (>> Toyota Motor Corp), Honda Motor Co (>> Honda Motor Co Ltd), Nissan Motor Co (>> Nissan Motor Co Ltd), Mazda Motor Corp (>> Mazda Motor Corp) Subaru Corp (>> Subaru Corp) and Mitsubishi Motors Corp (>> MITSUBISHI MOTORS CORPORATION), the respective companies confirmed.

TOYOTA

Japan's largest automaker Toyota said the compliance breach was a "grave issue", adding that Kobe Steel's products were used in vehicle doors and hoods.

NISSAN

Doors and hoods were also affected at Nissan, a spokesman said.

The automaker is grappling with its own compliance failures, recalling all new cars sold in Japan in the last three years after discovering final vehicle inspections were not performed by authorized technicians.

HONDA, SUBARU

Honda said doors and hoods were affected, while Subaru said vehicles and aircraft were affected.

Japanese industry ministry officials said Kobe Steel materials were used in some defense equipment made by Subaru.

MITSUBISHI HEAVY

Mitsubishi Heavy Industries (>> Mitsubishi Heavy Industries Ltd) said Kobe Steel products were used on its Mitsubishi Regional Jet and rockets, including the H-2A rocket launched on Tuesday to put a navigation satellite into orbit. The rocket cleared all safety checks before launch, the company said.

Japanese industry ministry officials said Kobe Steel materials were used in some defense equipment made by Mitsubishi Heavy.

IHI

Heavy machinery maker IHI Corp (>> IHI Corp) said affected products were used in its jet engines.

IHI is a supplier for engines used on Boeing Co (>> Boeing Company (The)) aircraft and in Japan's defense and aerospace industries. The company did not say which engines used the affected products.

Japanese industry ministry officials said Kobe Steel materials were used in some defense equipment made by IHI.

KAWASAKI HEAVY

Kawasaki Heavy Industries Ltd (>> Kawasaki Heavy Industries Ltd) said affected materials were used in airplane parts and airplane engine parts while it was still investigating to see if there were any other products including trains that used affected materials.

Japanese industry ministry officials said Kobe Steel materials were used in some defense equipment made by Kawasaki Heavy.

JR TOKAI

Central Japan Railway Company (JR Tokai) (>> Central Japan Railway Company), which operates the Shinkansen bullet train line between Tokyo and Osaka, said Kobe Steel's products were used in some of its Shinkansen's train trucks - the undercarriage of the train. The products were tested for safety before they were used, a spokesman said.

(Reporting by Sam Nussey and Yuka Obayashi; Editing by Shri Navaratnam and Susan Fenton)