1956

April

Yamashin Industry Inc. established with capital of 500,000 yen as filter manufacturing and sales company in Higashi-kamata, Ota-ku, Tokyo

1966

September

New head office and factory opens in Omori-minami, Ota-ku, Tokyo.

1972

October

Second factory opens in Omori-minami, Ota-ku, Tokyo.

1975

May

Saga Branch Office opens in Kamimine-mura, Miyaki-gun, Saga (now Kamimine-cho, Miyaki-gun, Saga).

1977

February

Full-scale production of filter elements begins at Saga Branch Office factory.

1978

February

Full-scale production of fiberglass filter media begins at Saga Branch Office factory.

1984

October

R&D Laboratory opens in Higashi-oi, Shinagawa-ku, Tokyo.

November

Manufacturing and sales of precision process filters begins.

1989

April

Local subsidiary YAMASHIN CEBU FILTER MANUFACTURING CORPORATION established on Cebu Island, Philippines

1991

December

Head office relocates from Omori-minami, Ota-ku, Tokyo to Nishi-kanagawa, Kanagawa-ku, Yokohama-shi, Kanagawa.

1995

July

Factory and secondary factory in the former head office site in Ota-ku, Tokyo relocates within Saga Branch Office; former head office factory becomes R&D Laboratory.

July

Local subsidiary YAMASHIN AMERICA INCORPORATED established in Chicago, USA

1996

April

Local subsidiary YAMASHIN EUROPE B.V. established in Rotterdam, Holland

2001

February

Local subsidiary YAMASHIN THAI LIMITED established in Ayutthaya, Thailand

September

ISO 9001 certification acquired

2002

April

Work completed on precision filter manufacturing plant in Ayutthaya, Thailand; manufacturing begins.

2003

April

ISO 14001 certification acquired

2005

October

Yamashin Industry Inc. renamed Yamashin Filter Corp.

2007

May

A new factory of YAMASHIN THAI LIMITED opens in Ayutthaya, Thailand.

May

Local subsidiary YAMASHIN FILTER SHANGHAI INCORPORATED established in Shanghai, China

June

R&D Laboratory relocates within Saga Branch Office.

December

Head office relocates from Nishi-kanagawa, Kanagawa-ku, Yokohama-shi, Kanagawa to Sakuragi-cho, Naka-ku, Yokohama-shi, Kanagawa.

2010

September

Local subsidiary YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATED established in Suzhou, China

November

Sales office of YAMASHIN THAI LIMITED opens in Bangkok.

December

Local subsidiary YAMASHIN EUROPE BRUSSELS BVBA established in Brussels, Belgium

2011

March

YAMASHIN EUROPE BRUSSELS BVBA merges with YAMASHIN EUROPE B.V.

October

Yokohama R&D Center opens in Sugita, Isogo-ku, Yokohama-shi, Kanagawa; R&D Laboratory of Saga Branch Office relocates within Yokohama R&D Center.

2012

June

YSK Corp established in Kamimine-cho, Miyaki-gun, Saga

December

YAMASHIN THAI LIMITED closes its factory and becomes a sales company; its headquarters relocates from Thailand Ayutthaya to Bangkok.

2013

February

YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATED renamed YAMASHIN FILTER (SIP) TECHNOLOGY INCORPORATED

2014

October

YAMASHIN-FILTER CORP. listed on Second Section of the Tokyo Stock Exchange

November

Capital increased to 822 million yen

2016

March

YAMASHIN FILTER CORP. transferred to First Section of the Tokyo Stock Exchange

2017

April

YSK Corp's process filter manufacturing business transferred to Yamashin-Filter Corp.

December

Yokosuka Media Laboratory opens in Uragou-cho, Yokosuka-shi, Kanagawa.

2018

January

Capital increased to 4,686 million yen

February

Capital increased to 5,434 million yen

December

YAMASHIN FILTER SHANGHAI INCORPORATED liquidated

2019

August

AQC Corporation made wholly-owned subsidiary