Highlights included presentations of outreach programmes, and an update of the university's accreditation status as a University for International Research Excellence.
Limited amounts will be sold at Fujisaki Department Store and Tohoku University's Homecoming Day, before it goes on general sale from September 30.
This year also marks the 10th anniversary of "Midori-no-oka," a song written as a gift to the university by alumnus and renowned singer-songwriter Kazumasa Oda.
Welcome Week is a series of activities and tours that provide an introduction to student life at Tohoku University and Sendai City.
The system is not limited to COVID-19 either, with it expected to be put to use to detect other viral diseases and biomarkers related to certain conditions.
Formaldehyde's ability to generate complex organic compounds, which are essential for life, may help us uncover Mars's mysterious past.
The researchers recorded impressive practical results, bettering that of more expensive iridium-based catalysts.
The breakthrough will aid technologies like water splitting and metal-air batteries, crucial for advancing a sustainable future.