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  2. HISTORY

HISTORY

HISTORY

MESSAGE

MESSAGE

The world we live in finds itself confronted with numerous problems, such as climate change and marine resource depletion, and diverse challenges, such as maintaining the environment and securing energy resources.

At Tsurumi-Seiki, we are looking to Earth's wide-open seas and numerous rivers and dam reservoirs for ideas for solving these problems and meeting these challenges. Since our company was founded in 1928, we have continued to work for the betterment of society, believing that it is our mission to provide high quality products and services that meet the needs of our diverse customers, in Japan and overseas.

We are greatly encouraged by the fact that our products, backed by years of technological development and experience, are meeting our customers' needs in the fields of marine observation and river and dam reservoir water quality monitoring, as well as the great trust that our customers place in us.

As we strive to provide accurate knowledge and insights for water measurement and research activities and contribute to the realization of a sustainable environment, we will continue to cultivate an international perspective, improve the expertise and skills of our employees by enhancing our personnel development activities, and listen closely to our customers as we work hand-in-hand with them. Society is changing at a dizzying pace, but we will do our utmost at Tsurumi-Seiki to rapidly respond to these changes and be of service to our customers.

PresidentMichihiko Tachikawa

history

history

1928〜1950
1928〜1950

Company History

1928September 3

Tsurumi-Seiki Kosakusho foundedFounder: Masao Iwamiya

創業者 岩宮政雄
Founder: Masao Iwamiya
1935

Designated as factory of the former Japanese navy

1945

Designated as supervisory factory of the former Japanese navy

1947October 25

Incorporated as Tsurumi-Seiki Kosakusho Co., Ltd.

Main services and products

1928

Improved and began domestic production of Sigsby motorized depth sounder (winch)

First motorized depth sounder (winch)
1930

Depth gauge No. 2 pulley - Honda tide gauge

Depth gauge No. 2 pulley
1931

Water sampler, Iwamiya bottom sampler, etc.

1949

Ship log

1951〜1974
1951〜1974

Company History

1954

Began offering oceanic water quality observation technologies

Established Iwamiya's Laboratory
1967

Masao Iwamiya conferred the Order of the Sacred Treasure, 4th Class

1969

Tsurumi-Seiki began technical partnership with Sippican and started domestic production of XBT

1971

Company name changed to Tsurumi-Seiki Co., Ltd.

Main services and products

1951

Self-recording current meter No. 2

1955

Mechanical Bathy Thermograph (MBT)
Umitaka-Maru 3000 m hydraulic winch

MBT
1962

Salinity meter E-2

1968

MTCM-3 (magnetic tape record current meter)

1969

eXpendable Bathy Thermograph (XBT) deployed water temperature meter

XBT
1964〜1998
1964〜1998

Company History

1975

Hiroshi Iwamiya appointed President and Masao Iwamiya appointed Chairman

1977

Began offering water quality observation technologies for terrestrial use, starting with the Miho Dam construction project

1978

Company celebrated 50th anniversary

1981

T.S.K America established in Seattle, participated in Shinkai 2000 project

1987

Shirakawa Plant constructed

1989

Participated in Shinkai 6500 project

Shinkai 6500(conceptual image)
1990

Presented Prime Minister's Award for Shinkai 6500

1995

T.S.K Service Center established

1996

Participated in XCTD competition with Sippican off the coast of Bermuda; Tsurumi-Seiki XCTD certified as world standard

Main services and products

1981

Microwave wave height meter

1985

Autolauncher

1997

eXpendable Conductivity, Temperature and Depth (XCTD) deployed salinity, water temperature sensor

XCTD
1999〜
1999〜

Company History

1999

ISO 9001 certification

2003

Began offering atmospheric observation technologies at Chichijima Island

2005

Service Center celebrated 10th anniversary

2006

Selected by the Ministry of Economy, Trade and Industry for the Vibrant GENKI Small and Medium Manufacturing Enterprises 300

2007

Hiroshi Iwamiya conferred the Order of the Rising Sun

Second President Hiroshi Iwamiya
2010

Michihiko Tachikawa appointed President and Hiroshi Iwamiya appointed Chairman
T.S.K Liaison Office established in India
Pressure testing facility constructed

2011

Selected as Yokohama Chizai Mirai Enterprise

2018

Company celebrated 90th anniversary

Main services and products

2002

NINJA profiling float (2,000 m)

2003

Radiosonde atmospheric observation system

2004

Direct Drive Volume Control (DDVC) winch

DDVC winch
2005

Airborne eXpendable Conductivity, Temperature and Depth (AXCTD) deployed salinity, water temperature sensor for aircraft

2012

Deep NINJA profiling float (4,000 m)

Deep NINJA
2015

Digi-auto M-6 (tabletop salinity meter)