From 2007-2009 I was on the online English team in charge of materials production, and since then I have continued producing online materials for that and my own courses. These materials are available on Hokkaido University Open Courseware (OCW). Materials currently available online are below. The date in brackets is the OCW upload date, and the videos may not be the most recent version of the video:
On Translating Ayako Kurahashi’s autobiography (HUSTEP, 2010)
Introducing England (continued, 2010)
Academic Writing (2010)
Keep Your Classmates Awake (Academic Presentations, 2010)
Characteristics of English Pronunciation (in Japanese, co-produced with Satoshi Oku, 2010)
Introducing England (2009)