Ryuji Akiyama of Robert Enters Second Year as "hamon band Campaign Captain"

To coincide with the launch of the new model "hamon band V," a wearable device that visualizes heatstroke risk, Mitsufuji will further deepen understanding of "core body temperature" and "alerts" this year, in collaboration with Ryuji Akiyama of Robert, who has been working on heatstroke prevention awareness since last year. We will strengthen information dissemination to improve safety awareness in the field.

Mitsufuji Co., Ltd. (Headquarters: Seika-cho, Kyoto Prefecture, President and Representative Director: Ayumu Mitsutera, hereinafter referred to as Mitsufuji) is providing various product developments and wearable IoT solutions under its new corporate slogan "Creating Safety." As part of this initiative, for the "hamon band" series, a wearable device that visualizes heatstroke risk, we will launch a new promotion, continuing to appoint Ryuji Akiyama, a versatile comedian, actor, and creator from Robert, as the "Campaign Captain" for the second consecutive year.

In recent years, due to the effects of climate change, extreme heat has become commonplace, and heatstroke countermeasures are an urgent issue in fields such as construction and manufacturing. Mitsufuji has been promoting the social implementation of wearable devices that accurately capture the state of the human body, leveraging its strength in the "algorithm to estimate changes in core body temperature" jointly developed with the University of Occupational and Environmental Health.

[Ryuji Akiyama's Second Year as Campaign Captain]

This campaign, which started in 2025, has seen Akiyama effectively communicate the importance of heatstroke countermeasures as the "Captain Protecting the Field." In this second year, he is deepening his understanding of "core body temperature" and "alerts," key indicators of heatstroke risk, through lectures from Associate Professor Chie KuroSaka of the University of Occupational and Environmental Health, who jointly developed the "core body temperature change estimation algorithm" with Mitsufuji to visualize heatstroke risk in advance. This year, along with the new model "hamon band V," we will deliver correct understanding and safety awareness regarding extreme heat to more worksites.

・Special Video: Ryuji Akiyama x Associate Professor KuroSaka "Core Body Temperature Edition"

・Special Video: Ryuji Akiyama x Associate Professor KuroSaka "Alert Edition"

[Comment from Ryuji Akiyama]

Hello everyone. This is Ryuji Akiyama from Robert. It's been incredibly hot these past few years, hasn't it? The Earth is changing its attitude a bit. I just heard from some "people involved" with the Earth that "this year the Earth is in trouble again. It's going to get hot." My partner for times like these is this "hamon band." It alerts you to the creeping risks of extreme heat before you even notice. How can it do that? It's equipped with the world's first algorithm that estimates changes in "core body temperature" from pulse waves, which is crucial for determining the severity of heatstroke. Well, everything I learned from Professor KuroSaka at the University of Occupational and Environmental Health, who jointly developed this algorithm...