well, lets see... hmm...
Japanese cars (started in late 60s)
Anime & Manga (of course!)
Electronics in general (definitely!)
Robots (its happening right now, and in future there will be even cooler robots )
VHS video tapes (who haven't used them? i still got JVC recorder with tapes right here)
Video Games (SEGA, Nintendo and Sony changed console and arcade gaming forever)
and don't forget the CDs (it was Sony together with Philips but i think it counts)
and 3.5 inch floppy drives (by Sony, in practically every computer until now)