The Tokyo International Pen Show made it's debut on September 29th and 30th (2018) at the Tokyo Municipal Industry and Trade Center. Some info and reference for next year's show:
-the official website: tokyo-international-penshow.com You need to scroll down for the English explanation. News for next year's show should be published here. They said they were planning on a show again next year, about the same time in the same venue.
-it is right next to the Sensoji temple in Asakusa which is a fun place. So if you come with someone who doesn't do fountain pens, they can keep themselves busy while you do the heavy lifting of spending your money.
-take the Ginza subway line to the last stop of Asakusa, get out exit #3 and do a u-turn. You should be facing the Sumida River with it's iconic "Asahi Flame" that looks like a giant gold tadpole... (picture #2).
-take a left and go down several blocks. When you see the eastern gate of Sensoji, look right and you should see the building with Tokyo "Skytree" tower behind it.
-other pics are: the table for Shumi no Bungu Bako magazine. I bought their special Platinum 3776 Nice edition, Water Blue. It was an ink lover's delight--Ink Stand, Kingdom note, Yang Ching, Color Bar and Bungubox all had ink that I could not resist. Also got some Graphilo paper that I had not heard of before. I think it has some sort of sizing that makes sheen show up easily.
If you ever visit Japan, I would seriously consider planning it around next year's show. And if you love ink, don't come--you won't be able to afford your ticket back home...