Very detailed drawings are given for cutting and sewing each bag. If you haven't seen these magazines at your favorite quilt shop, ask them to stock them for you. There is an online mailorder source if you wish to order them by mailorder . I found several Japanese quilt groups active on the Web, these seem to be guilds or schools in Japan. They share in many of the quilt activities and one group has done an Online Friendship quilt where the blocks were all finished with added ribbon ties and the final quilt was tied together.
Crib quilts are, of course, just as popular with Japanese mothers as everywhere else in the world.
Terao Yoko shows 4 of her crib quilts on her web page . She shows some of her smaller projects here. Quilt shops in Japan are putting quilts on their web pages. Small quilted bags and projects are very popular in Japan - here are some examples. Clothing and accessories are popular items to make with patchwork themes.