Matsutaro Yorishima founded Yorishima & Co.,
the predecessor of Marumi Optical Co. Ltd.,
a small factory for optics in Tokyo.

Marumi Optical Co., Ltd. was established.

The first exhibition at Photokina in Köln.
Thirty-six years continuously exhibited & released new products after that until the end of Photokina in 2018.
Nagano Plant was built responding to growing market demand.
"marumi" brand was introduced.
Marumi released the world-first filters for DSLRs, the DHG series.
DHG Super Series had been followed in 2006.
Released EXUS series, brand flagship model with the most dedicated easy-maintenance coating, Anti-Static Coating.
"marumi CINE&TV" brand was launched to join into cinema & broadcasting market