| 1956-04 |
フィルタの製造販売会社として東京都大田区東蒲田に山信工業株式会社を資本金500千円で設立 |
| 1956-04 |
Yamashin Industry Inc. established with capital of 500,000 yen as filter manufacturing and sales company in Higashi-kamata, Ota-ku, Tokyo |
| 1966-09 |
東京都大田区大森南に本社工場を開設、本社を移転 |
| 1966-09 |
New head office and factory opens in Omori-minami, Ota-ku, Tokyo. |
| 1972-10 |
東京都大田区大森南に第二工場を開設 |
| 1972-10 |
Second factory opens in Omori-minami, Ota-ku, Tokyo. |
| 1975-05 |
佐賀県三養基郡上峰村（現佐賀県三養基郡上峰町）に佐賀工場を開設 |
| 1975-05 |
Saga Branch Office opens in Kamimine-mura, Miyaki-gun, Saga (now Kamimine-cho, Miyaki-gun, Saga). |
| 1977-02 |
佐賀工場にてフィルタエレメントの本格生産開始 |
| 1977-02 |
Full-scale production of filter elements begins at Saga Branch Office factory. |
| 1978-02 |
佐賀工場にてガラス繊維「ろ材」の本格生産開始 |
| 1978-02 |
Full-scale production of fiberglass filter media begins at Saga Branch Office factory. |
| 1981-08 |
ワイエスケー工業株式会社を設立 |
| 1984-10 |
東京都品川区東大井にR&Dラボラトリを開設 |
| 1984-10 |
R&D Laboratory opens in Higashi-oi, Shinagawa-ku, Tokyo. |
| 1984-11 |
精密プロセスフィルタの製造販売を開始 |
| 1984-11 |
Manufacturing and sales of precision process filters begins. |
| 1989-04 |
フィリピン セブ島に現地法人YAMASHIN CEBU FILTER MANUFACTURING CORPORATIONを設立 |
| 1989-04 |
Local subsidiary YAMASHIN CEBU FILTER MANUFACTURING CORPORATION established on Cebu Island, Philippines. |
| 1991-12 |
本社を東京都大田区大森南から神奈川県横浜市神奈川区西神奈川に移転 |
| 1991-12 |
Head office relocates from Omori-minami, Ota-ku, Tokyo to Nishi-kanagawa, Kanagawa-ku, Yokohama-shi, Kanagawa. |
| 1992-04 |
ワイエスケー工業株式会社と合併 |
| 1995-07 |
東京都大田区本社工場、第二工場を佐賀工場へ移管、旧本社工場をR＆Dラボラトリとする |
| 1995-07 |
アメリカ シカゴに現地法人YAMASHIN AMERICA INCORPORATEDを設立 |
| 1995-07 |
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. |
| 1995-07 |
Local subsidiary YAMASHIN AMERICA INCORPORATED established in Chicago, USA. |
| 1996-04 |
オランダ ロッテルダムに現地法人YAMASHIN EUROPE B.V.を設立 |
| 1996-04 |
Local subsidiary YAMASHIN EUROPE B.V. established in Rotterdam, Holland. |
| 2001-02 |
タイ アユタヤに現地法人YAMASHIN THAI LIMITEDを設立 |
| 2001-02 |
Local subsidiary YAMASHIN THAI LIMITED established in Ayutthaya, Thailand. |
| 2001-09 |
ISO9001認証取得 |
| 2001-09 |
ISO 9001 certification acquired. |
| 2002-04 |
タイ アユタヤに精密フィルタ製造工場完成。生産開始 |
| 2002-04 |
Work completed on precision filter manufacturing plant in Ayutthaya, Thailand; manufacturing begins. |
| 2003-04 |
ISO14001認証取得 |
| 2003-04 |
ISO 14001 certification acquired. |
| 2005-10 |
社名を山信工業株式会社からヤマシンフィルタ株式会社に変更 |
| 2005-10 |
Yamashin Industry Inc. renamed Yamashin Filter Corp. |
| 2007-05 |
YAMASHIN THAI LIMITEDの新工場をタイ アユタヤに開設 |
| 2007-05 |
中国 上海に現地法人YAMASHIN FILTER SHANGHAI INCORPORATEDを設立 |
| 2007-05 |
A new factory of YAMASHIN THAI LIMITED opens in Ayutthaya, Thailand. |
| 2007-05 |
Local subsidiary YAMASHIN FILTER SHANGHAI INCORPORATED established in Shanghai, China. |
| 2007-06 |
R&Dラボラトリを佐賀工場へ移管 |
| 2007-06 |
R&D Laboratory relocates within Saga Branch Office. |
| 2007-12 |
本社を神奈川県横浜市神奈川区西神奈川から神奈川県横浜市中区桜木町に移転 |
| 2007-12 |
Head office relocates from Nishi-kanagawa, Kanagawa-ku, Yokohama-shi, Kanagawa to Sakuragi-cho, Naka-ku, Yokohama-shi, Kanagawa. |
| 2010-09 |
中国 蘇州に現地法人YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATEDを設立 |
| 2010-09 |
Local subsidiary YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATED established in Suzhou, China |
| 2010-11 |
YAMASHIN THAI LIMITEDの営業事務所をタイ バンコクに開設 |
| 2010-11 |
Sales office of YAMASHIN THAI LIMITED opens in Bangkok. |
| 2010-12 |
ベルギー ブリュッセルに現地法人YAMASHIN EUROPE BRUSSELS BVBAを設立 |
| 2010-12 |
Local subsidiary YAMASHIN EUROPE BRUSSELS BVBA established in Brussels, Belgium |
| 2011-03 |
YAMASHIN EUROPE BRUSSELS BVBAがYAMASHIN EUPORE B.V.を吸収合併 |
| 2011-03 |
YAMASHIN EUROPE BRUSSELS BVBA merges with YAMASHIN EUROPE B.V. |
| 2011-10 |
横浜開発センタを神奈川県横浜市磯子区杉田に開設、佐賀工場のR&Dラボラトリを横浜開発センタへ移管 |
| 2011-10 |
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. |
| 2012-06 |
佐賀県三養基郡上峰町にYSK株式会社を設立 |
| 2012-06 |
YSK Corp established in Kamimine-cho, Miyaki-gun, Saga |
| 2012-12 |
YAMASHIN THAI LIMITEDの工場を閉鎖、販売会社へ事業転換。本社をタイ アユタヤからバンコクへ移転 |
| 2012-12 |
YAMASHIN THAI LIMITED closes its factory and becomes a sales company; its headquarters relocates from Thailand Ayutthaya to Bangkok. |
| 2013-02 |
YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATEDの社名をYAMASHIN FILTER (SIP) TECHNOLOGY INCORPORATEDに変更 |
| 2013-02 |
YAMASHIN FILTER (SIP) RESEARCH & DEVELOPMENT CENTER INCORPORATED renamed YAMASHIN FILTER (SIP) TECHNOLOGY INCORPORATED |
| 2014-10 |
東京証券取引所市場第二部へ株式を上場 |
| 2014-10 |
YAMASHIN-FILTER CORP. listed on Second Section of the Tokyo Stock Exchange |
| 2014-11 |
資本金を8億22百万円へ増資 |
| 2014-11 |
Capital increased to 822 million yen |
| 2016-03 |
東京証券取引所市場第一部銘柄に指定 |
| 2016-03 |
YAMASHIN FILTER CORP. transferred to First Section of the Tokyo Stock Exchange |
| 2017-04 |
YSK株式会社のプロセスフィルタ製造事業をヤマシンフィルタ株式会社へ事業譲渡 |
| 2017-04 |
YSK Corp's process filter manufacturing business transferred to Yamashin-Filter Corp. |
| 2017-12 |
横須賀メディアラボを神奈川県横須賀市浦郷町に開設 |
| 2017-12 |
Yokosuka Media Laboratory opens in Uragou-cho, Yokosuka-shi, Kanagawa. |
| 2018-01 |
資本金を46億86百万円へ増資 |
| 2018-01 |
Capital increased to 4,686 million yen |
| 2018-02 |
資本金を54億34百万円へ増資 |
| 2018-02 |
Capital increased to 5,434 million yen |
| 2018-12 |
YAMASHIN FILTER SHANGHAI INCORPORATEDを清算 |
| 2018-12 |
YAMASHIN FILTER SHANGHAI INCORPORATED liquidated |
| 2019-08 |
株式会社アクシーを完全子会社化 |
| 2019-08 |
AQC Corporation made wholly-owned subsidiary |
| 2020-03 |
YSK株式会社を清算 |
| 2020-03 |
YSK Corp. liquidated |
| 2020-11 |
ベトナム・ヴィンフック省に現地法人YAMASHIN VIETNAM CO., LTDを設立 |
| 2020-11 |
Local subsidiary YAMASHIN VIETNAM CO., LTD. established in Vinh Phuc Province, Vietnam. |
| 2021-10 |
佐賀県三養基郡上峰町に佐賀工場を新たに竣工 |
| 2021-10 |
Saga Branch Office newly completed and opens in Kamimine-cho, Miyaki-gun, Saga. |
| 2022-01 |
研究開発拠点集約のため、神奈川県横須賀市光の丘に横須賀イノベーションセンタを設立 |
| 2022-01 |
Yokosuka Innovation Center opens as the main R&D hub in Hikarinooka, Yokosuka-shi, Kanagawa. |
| 2022-04 |
東京証券取引所プライム市場へ移行 |
| 2022-04 |
Moved to the Tokyo Stock Exchange Prime Market. |
| 2023-01 |
現地法改正のため、YAMASHIN EUROPE BRUSSELS の法人形態を BVBA から BV へ変更 |
| 2023-01 |
Due to the revision of local laws, the corporate form of YAMASHIN EUROPE BRUSSELS is changed from BVBA to BV. |
| 2025-01 |
YAMASHIN FILTER(SIP) TECHNOLOGY INC.をYAMASHIN FILTER(SIP) INC.へ商号変更 |
