I am inordinately fond of these devises: they're just a lovely bit of industrial design, aren't they? Simple, efficient and neat.
....a remarkable new portable burner called the Cassette Feu (model A-7), made by a Japanese company, Iwatani. This powerful, cleverly designed device virtually simulates range-top cooking; it may keep me out of the kitchen much of this summer.and there is a photo showing it is indeed this design of cooker.
But for those who want more flavors than barbecuing could offer, the portable gas cooker provides an easy answer.
Fueled by a disposable butane canister, this little stove unit came to America from Japan, where it originated. “It was developed almost 15 years ago for on-the-table cooking for sukiyakis and shabu-shabus, " said Ken Semba, western region sales manager for Iwatani and Co., the distributor of Cassette Feu portable gas stove. He explained, “Since the gas hose was dangerous and the electric cookers didn’t give us enough heat for this type of cooking, the Cassette Feu, which stands for small flamer evolved.”And someone's blog about Japanese food says:
While this product always seems to be around at my friends' homes, the first model came out only in 1969, from Iwatani. No wonder the company is still the biggest name in portable gas stoves.
So, it would seem a good chance that there is an unknown Japanese designer responsible for the basic idea. He (for it surely would be) should be better known!