|Birth:||25 December 1909|
Tsukuba, Ibaraki, Japan
|Death:||17 January 2020|
Shimotsuma, Ibaraki, Japan
|Age:||110 years, 23 days|
Iida was born in Yatabe (present-day Tsukuba), Ibaraki Prefecture, Japan, on 25 December 1909. He had two older brothers. After he graduated from an elementary school in 1926, his parents suggested that "the Western era is coming soon" and he began working as a tailor at a relative's shop in Asakusa, Tokyo, where he worked for next 5 years. At the age of 24, he opened a clothing store where he worked until the age of 90. At the age of 29, he went to the Second Sino-Japanese War. He was on the battlefield for 3 years. At that time, his wife worked in their clothing store alone. His wife, Haru, died in 1995.
His only daughter, Yukiko, was alive in 2018, aged 85. In September 2019, he was confirmed as the oldest living man in Ibaraki Prefecture. He celebrated his 110th birthday in December 2019.
Iida died in Shimotsuma, Ibaraki, Japan, on 17 January 2020 at the age of 110 years, 23 days.