It doesn't directly answer the question, but this is what I read between the lines:
- kitchens are small and appliances are small
- meals are physically small (no Thanksgiving turkey)
- ovens are small (microwaves now)
- ranges are gas (I presume given the size of Japan and population density fuel was never abundant, so no (i.e. "no" = "few') wood/coal stoves for cooking and no transition to electric stoves.