History

History of Hodogaya Chemical Group

1900s

2000s

1915
Production of caustic soda using an electrolysis method launched (first for Japan).

1926
Production of phosgene started.

1927
Dye production launched.

1950
Production of agrochemicals started.

1963
Production of urethane materials (PTG) launched.

1966
Hydrogen peroxide production started.

1967
Production of urethane waterproof materials started (first in Japan).

1978
Production of charge control agents (CCA) for toners launched.

1984
Charge transport materials (CTM) production launched.

1991
Production of urethane materials (PTG-L) launched.

2001
Production of OLED materials and hole transport materials (HTM) launched.

2004
OLED materials and electron transport materials (ETM) developed.

2010
Production of (Bio PTG) launched.

2017
Production of OXYATTACK (disinfectant agent for food products), a peracetic acid formulation, started.
Urethane waterproof material Sugomaku production launched.

2020
Mass production of PCR test material launched.

1915
Hodogaya Soda Works founded in present‑day Hodogaya Ward, Yokohama City, Kanagawa.

1916
Toyo Soda Co., Ltd. (present‑day Koriyama Plant) opened.

1939
Tsurumi Plant (current Yokohama Plant) was established.
Name changed to Hodogaya Chemical Co., Ltd.

1967
New York Office opened. (incorporated in 1986)

1971
Nanyo Plant opened.

1978
Hodogaya Vandex Construction Products Co., Ltd. established. (changed its name to Hodogaya Construction Products Co., Ltd. in 2017).

1991
Tsukuba Research Laboratory was established.

1993
Hodogaya Contract Laboratory Co., Ltd. founded.

1994
HODOGAYA AGROTECH Co., Ltd. founded. (Changed its trade name in 2011)

1997
Hodogaya Logistics Co., Ltd. founded. Shanghai Office opened. (incorporated in 2014)

2006
Some of the shares of Nippon Polyurethane Industry Co., Ltd. sold. (all shares sold off in 2012.)

2008
Office in Korea opened (incorporated in 2011).
HODOGAYA UPL Co., Ltd. established.

2010
Düsseldorf Office opened. (incorporated in 2018)
Taipei Office opened.
Shares of SFC Co. Ltd. (Korea) acquired.

2015
Company transitioned to one with Audit & Supervisory Committee.

2016
Celebrated its 100th anniversary

Broke free of chemical industry’s reliance on imports

Founder Otosuke Isomura

Became an integrated chemicals manufacturer as society industrialized and modernized

Developed various products that supported post‑war recovery

Expanded business fields to electronic materials with an eye toward the advent of an electronics era

Created an environmentally conscious society through new materials and products with a light environmental burden