1940

1949
Haruyoshi Shimizu founded Shimizu Densetsu Kogyosho.

July 1950, a commemorative photo of shipping the first drying machine(obtained a utility model patent)

1950

1958
Shimizu Densetsu Kogyo Co., Ltd. founded.

1960

1960
Light alloy heat treatment process passed Japan Defense Agency standards, a mesh belt-type continuous heat treatment device developed independently.

1970

1974
Masayoshi Shimizu assumed office the role of CEO.

1975
Installed the first vacuum furnace.

1976
The first vacuum heat treatment furnace developed in-house.

Masayoshi Shimizu (1993)

1975
Installed the first vacuum furnace.

Vacuum heat treatment furnace SVF100

1976
The first vacuum heat treatment furnace developed in-house.

Vacuum heat treatment furnace SVF200G2

1980

1980
Increased capitalization to 30 million JPY.

1981
Technical collaboration took place with Scientific Coating Inc. (USA) for the development of a CVD surface hardening processing device.

With SCI Inc. CEO and Masayoshi Shimizu

1982
CVD surface hardening processing device installed, Coating processing Division was established.

1983
Starts contract-based coating processing at Kyoto plant.

1984
Low-temperature CVD device co-developed with Kobe Steel Ltd.

1985
Plasma-arc ion method PVD coating device adopted.

1986
Cooperative business agreement signed with Asai Sangyo Co., Ltd. over contract-based CVD and PVD processing.

1987
Sales agent contract was established with VFS Co., Ltd. (USA) for vacuum furnace sales.

1988
Our vacuum heat treatment furnace received “Hatsumei Shorei-Sho” (Invention encouragement prize) from the Japan Institute of Invention and Innovation.

1990

1993
Local corporation JSK Hi-Tech Inc. established in Dallas, TX USA.

1995
New plant at Komaki established.

1999
Received recognition as a "Hanshin monozukuri (Innovation) leading company".

2000

2000
Jiro Nagaya assumed office the role of CEO. ISO9001: Obtained 1994 certification(excluding SEAVAC (USA),L.L.C.).

2002
New plant at Sendai established.

2004
SEAVAC(USA), L.L.C. established in Fort Wayne, Indiana, USA

2005
Masayoshi Shimizu assumes the role of CEO.New building in Kyoto acquired.

Sendai plant was moved（2006）

2007
Increased capitalization to 63 million yen.

2008
December: Heat treatment equipment division sold to Ipsen Co., Ltd.

2009
ISO9001: obtained certification in 2008.(excluding SEAVAC (USA) L.L.C.).

2010
April: Hiroyuki Shimizu assumed office the role of President & CEO.

2013
November: Kyushu sales office established.

2015
April: Closed Kyushu sales office and established Kyushu plant.

2015
September: Obtained ECO action 21

2017
September: Obtained ISO 9001:2015(except SEAVAC (USA) L.L.C.)

2018
Closed CVD surface treatment.

2019
April: Shimizu Densetu changed name to SEAVAC, Inc.

Masayoshi Shimizu (2007)