1940-1950
Tsumura Juntendo
herbal medicine
at that time
"Chujoto"
- 1941.8
- Established at Minami Motomachi in Kochi-City with the initial capital of 180,000 yen. Involved in the development of "KODOSHI (High Quality Paper)," a high water resistant paper manufactured by impregnating viscose into handmade paper, used for herb medicine decoction.
- 1943.4
- "KODOSHI" marketed as a separator for aluminum electrolytic capacitor.
- 1954.11
- In order to respond to the growing demand of capacitor separator, paper-making machine No.1 is introduced to start production of capacitor separator.
1960
Former Head Office
and Plant (1960s)
Left:Machine No.2
Right:Machine No.3
(1960s)
A party held in
celebrating of
starting construction
of Haruno Plant.
(1968)
- 1961.11
- Paper-making machine No.2 is introduced for the first time in Japan to produce duplex paper.
- 1963.4
- Started export of capacitor separator to China, Taiwan and Brazil, etc.
- 1966.3
- Paper-making machine No.3 started operation.
- 1968.8
- Haruno Plant （current Head Office/Head Plant） started operation in Haruno-cho, Agawa-gun（current Kochi-City）, Kochi Prefecture.
Paper-making machine No.5 started operation.
- 1969.8
- Paper-making machine No.6 started operation.
1970
Head Office/Head
Plant in Haruno
(1974)
- 1971.10
- Former head office and its plant closed and relocated to Haruno Plant（current Head Office/Head Plant）.
Highly functional separators for paperlined dry batteries developed and started sales.
- 1971.12
- Paper-making machine No.7 as the combination of machine No.2 and 3 started operation.
- 1972.8
- Collaboration venture with Oji F-Tex Co., Ltd. (formerly Honshu Paper Co., Ltd.), started on manufacturing capacitor separator.
- 1976.4
- Developed low impedance capacitor separator.
- 1977.8
- Developed separator for alkaline battery.
1980
Head Office/Head
Plant in Haruno
(1980s)
Land breaking
ceremony for
installing Machine No.8
(1984)
- 1985.3
- Paper-making machine No.8 started operation.
- 1987.5
- Nonwovens-making machine started operation.
- 1988.1
- Paper-making machine No.10 started operation.
- 1989.4
- Developed mercury-free alkaline battery separator.
- 1989.7
- Honoured by the visit of His Highness The Crown Prince Naruhito of Japan.
1990
Aki Plant completed
(1992)
- 1992.6
- Aki Plant started operation in Aki-City, Kochi Prefecture.
Paper-making machine No.11 started operation.
- 1992.12
- Developed separator for Ni-MH battery.
- 1995.4
- Introduced spunbond nonwovens-making machine in Aki Plant.
- 1995.8
- Paper-making machine No.12 started operation in Aki Plant.
- 1996.2
- Shares of NKK opened to the public by the Japan Securities Dealers Association (OTC registration)
2000
Paper-making machine
N-1 started operation
(2001)
Nankoku Plant
completed
(2004)
- 2001.8
- Paper-making machine N-1 started operation in Haruno Plant（current Head Office/Head Plant）.
- 2002.6
- NIPPON KODOSHI KOGYO (MALAYSIA) SDN BHD established.
- 2003.7
- Acquired 240ha of forest in Aki city which reserving the source of river as water resource.
- 2004.8
- Nankoku Plant started operation in Nankoku-City, Kochi Prefecture.
- 2004.12
- Listed its stock on JASDAQ Securities Exchange. Inc.
- 2009.5
- Full-scale entry into the lithium-ion battery separator market.
2010
Yonago Plant
completed
(2012)
Paper-making machine
R-1 started operation
(2012)
- 2012.10
- Yonago Plant started operation in Yonago-City, Tottori Prefecture. Paper-making machine R-1 started operation.
- 2019.2
- Recognized for the first time as one of the "Certified Health & Productivity Management Outstanding Organizations (Large Enterprise Category [White 500])" selected by Nippon Kenko Kaigi and the Ministry of Economy, Trade and Industry.
2020
- 2020.3
-
Selected for the first time as an outstanding listed enterprise under the "Health & Productivity Stock Selection" program created by the Ministry of Economy, Trade and Industry and the Tokyo Stock Exchange.
※The first company to be selected in the pulp and paper industry.
- 2020.6
- Selected as one of the enterprises in the "Global Niche Top Companies Selection 100" for 2020 by the Ministry of Economy, Trade and Industry.