Field note (野帳,
Yacho) is mainly used by surveying engineer, field scientist etc.
for long time. Kokuyo, a Japanese largest stationery company, sells
fieldnote in several format with sketch book (quadrille), level
book, etc. Of course, I use quadrille one. It seems the Kokuyo's
fieldnote is the only solution in Japan.
Umesao and Kitagawa, according to their books, seems to use this
kind of fieldnote since they are field scientist. I have been using
the fieldnote on my job, too. Through my experience, I found I can
use it not only for field work, but also personal idea capturing
media.
I hack the fieldnote by adding elastic band as you see in the
picture above. It enables to put a pencil between current writing
pages. I use a pencil itself as bookmark. I open current page in a
second.