Schroders' Andrew Rose, manager of the £2.3bn Schroder Tokyo fund and £250m Schroder Japan Growth investment trust has announced plans to retire from the industry in June.
Andrew Rose joined Schroders in 1981 and has held a number of roles within the Japan division including senior investment officer for Japan and most recently, head of Japanese equities.
Taketsume has worked at Schroders since 2007 as a member of its Japanese equity team, initially as a technology analyst and then a fund manager.
He began his career in investment as Nikko Asset Management in 1994 before working as a fund manager at Deutsche Trust Bank in 1998.
Taketsume and Rose have collaborated on portfolio management since 2014, before Taketsume relocated to London in 2017 as a step in the "formal transition process".
Nicky Richards, global head of equities, said: "Andrew is one of the most respected and long-standing Japanese equity fund managers in the industry, we would like to thank him for his commitment to Schroders and our clients during his successful 38-year career.
"Masaki is ideally placed to take on Andrew's fund management responsibilities. We are confident that Masaki's fund management expertise, supported by Nathan Gibbs and the wider Japanese equities team, will ensure investment continuity for our clients."
Taketsume added: "Having worked closely with Andrew for the past five years I am excited about the prospect of continuing the investment approach, process and style which has served our clients well over the long-term."
Over five years to 6 February, Schroder Tokyo is up 72%, ahead of its IA Japan sector average return of 68%, according to FE.
During the same period, the trust is up 76%, in line with the TOPIX but behind its AIC Japan sector average return of 85%. It currently trades on a 10.4% discount.