Depending on whether you're looking for a direct translation of bizcochos japoneses

here is a picture of "Kasutera (Japanese Cakes":

http://japanesefood.about.com/library/pictures/blkasutera.ht...

It seems they might also be called CASTELLA, and have originated in Portugal before being taken to the Far East

Castella recipe - Japanese Kasutera recipe - Japanese cake recipesA recipe to make kasutera or castella, a traditional Japanese cake.
japanesefood.about.com/od/japanesecake/r/kasuterarecipe.htm - 26k - Cached - Similar pages

Japanese dessert pictures - kasutera cake - Japanese food photos ...A picture of Japanese kasutera cake - Japanese dessert pictures.
japanesefood.about.com/library/pictures/blkasutera.htm - 22k - Cached - Similar pages

More results from japanesefood.about.com »
Oyatsu and kasutera (castella), a Japanese sponge cake | Just HungryOne of my favorite oyatsu snacks growing up in Japan was kasutera or castella, ... If I lived in Japan, frankly I don't think I would make my own kasutera ...
www.justhungry.com/2006/08/oyatsu_and_kasutera_castella_a.h... - 86k - Cached - Similar pages

Kasutera Japanese Sponge Cake on Flickr - Photo Sharing!Kasutera Japanese Sponge Cake. ... Click this icon to see all public photos and videos tagged with Japanese Japanese. Show machine tags (0) Hide machine ...
www.flickr.com/photos/ugwug/2628278799/ - 51k - Cached - Similar pages

Kasutera - Japanese Sponge Cake - Recipes WikiDescription. Kasutera - Japanese Sponge Cake ... Categories: Japanese Desserts | Recipes | Desserts | Lemon Recipes | Cocoa Recipes | Granulated sugar ...