Imamura entered NHK in 1983. He was the series editor of the slot “World Documentary” from 2009 until 2012. Since 2012 he has been working with NHK Enterprises and is in charge of co-production, pre-buy and commission of TV programs mainly documentaries. While continuing his work at NHK Enterprises, he also established Studio IMAKEN LLC in 2022 and works as an independent producer. He is one of the founders of Tokyo Docs which started in 2011.
As the producer of NHK or NHK Enterprises, he supported many Asian documentaries such as Plane of Snail (Best feature length documentary, IDFA 2011), The Chinese Mayor (Special Jury Prize, Sundance 2015), Kabul, City in the Wind, After the Rain (2021), Organic Terrorist (2023).
As the producer of NHK or NHK Enterprises, he supported many Asian documentaries such as Plane of Snail (Best feature length documentary, IDFA 2011), The Chinese Mayor (Special Jury Prize, Sundance 2015), Kabul, City in the Wind, After the Rain (2021), Organic Terrorist (2023).