Our Timeline
＝Founding Period＝
| Company Evolution | Year | Production Innovation | |
| Kotone Seisakusho established | 1916 | Manufacturer of chemical machinery and liquid chemical storage and transport tanks | |
| Nippon Pneumatic Kogyosho (NPK) established | 1923 | Manufacturer of air tools | |
| NPK reorganized as a joint stock corporation | 1938 | ||
|
NPK amalgamated with Kotone Seisakusho Initial production of chemical processing equipment |
1945 | ||
| Labor Union established | 1949 | ||
| 1956 | Pneumatic | Initial production of High-speed Grinders | |
＝Challenge Period＝
| Company Evolution | Year | Production Innovation | |
| Construction Equipment Division established | 1957 | Construction | Development and release of the world's first large pneumatic hammer, the IPH |
| 1958 | Pneumatic | Initial production of angle grinders | |
| Head office building constructed | 1963 | ||
|
Higashi-Osaka Plant constructed and Chemical Engineering Division moved to the new plant |
1965 | ||
| 1968 | Chemical | Development and release of ultrasonic jet mill | |
| Fukuoka Sales Office Opened | 1969 | ||
| Higashi-Osaka Plant renovated and Construction Equipment Division moved to the plant | 1970 | ||
| 1972 | Construction | Development and release of HPH-series large Hydraulic Hammer | |
| Hiroshima Sales Office opened | 1975 |
Construction |
Development and release of Hydraulic pile driver/extractor |
|
Chemical |
First toner production plant completed | ||
＝Growth Period＝
| Company Evolution | Year | Production Innovation | |
| 1976 | Construction | Development and release of H-series large Hydraulic Hammer | |
| Nippon Pneumatic Kenki Co., Ltd. established | 1977 | Construction | NPK large hammer awarded the Special Invention Prize of the Japan Institute of Invention and Innovation |
| Chemical | Release of high-precision powder dispersion separator | ||
| NPK Europa B.V. established in Rotterdam, Netherlands, to expand sales channels in the European region | 1978 | ||
| 1979 | Chemical | High-precision powder dispersion separator recognized with Outstanding Product Awards from the Society of Chemical Engineers, Japan and the Japan Management Association | |
| 1980 | Pneumatic | Release of Oil Pulse wrench | |
| 1981 | Chemical | Completion of first toner plant outside Japan | |
| 1984 | Construction | Development and release of crusher equipped with hydraulic booster | |
| Nabari Plant constructed in Nabari, Mie Prefecture, and Chemical Engineering Division moved to the plant | 1985 | Chemical | Dispersion Separator was awarded the Special Invention Prize of the Japan Institute of Invention and Innovation |
| NPK Construction Equipment, Inc. established in Cleveland, Ohio, U.S.A. to expand sales channels in North and South America | |||
| 1986 | Construction | Development and release of shear with attached booster mechanism | |
| 1987 | Pneumatic | Impact Wrench (with improved striker design) awarded the Prize of the Director by the Director General of the Science and Technology Agency | |
| Chemical | Release of surface-fusing system | ||
| 50th Anniversary of NPK | 1988 |
Construction |
Development and release of secondary crusher with attached booster mechanism |
| 1990 |
Construction |
Release of E-series large Hydraulic Hammer with new type of mechanism | |
|
Chemical |
Development of new toner production process | ||
＝Expansion Period＝
| Company Evolution | Year | Production Innovation | |
| First renovation of Nabari Plant | 1992 | ||
| Shanghai Pneumatic Machinery., Ltd. established in Shanghai, China | 1995 | ||
| NPK Website launched | 1996 | Chemical | Release of Excel high-efficiency plastic filter |
| 1997 | Chemical | Release of Microspin submicron classifier | |
|
Passing of Founder and Chairman Eimatsu Kotone |
2001 | ||
| NPK Europe Manufacturing s.r.o. established in the Czech Republic as a production base for NPK Europe | |||
| 2002 | Chemical | Microspin Jet Mill awarded the Technology Prize by the Japan Society of Mechanical Engineers, Tokai Branch | |
| Kanto Sales Office opened | 2003 | Chemical | Release of surface fusing system, "MeteoRainbow" |
| Hiroshima sales office consolidated into Fukuoka Sales office | |||
| 2004 | Construction | Release of GH-series hydraulic hammers | |
| Construction | Release of K-23J steel shear | ||
| NPK Middle East FZCO established in the United Arab Emirates to expand sales channel in the region | 2005 | Pneumatic | Release of angle grinder with one-touch control, a first for the industry |
| Construction | Release of environment-friendly, low-noise hammer | ||
| Construction | Release of electromagnet-equipped secondary crusher | ||
| Construction | Release of clam-shaped shear | ||
| Chemical | Release of helium-recycling jet mill | ||
| Chemical | Release of UFS/UFC-type airflow separator for toner | ||
| 2006 | Construction | Release of XC-series beak-edged hydraulic crushers | |
| Second renovation of Nabari Plant | 2007 | ||
| 2008 | Pneumatic | Launch of High-spec, heavy-duty angle grinder | |
| Construction | Release of SV-series crusher with double cylinder | ||
| 2010 | Construction | Release of X-series, small single-cylinder crusher | |
| Chemical | Release of MJM Jet Mill for pharmaceutical and food processing | ||
| 2011 | Chemical | Release of I-Jet Jet Mill used in mechanical rotor air separator, MEMSA Spray Jet Mill, and Vortex Air Jet Mixer Swirler | |
| Relocation of Kanto Sales office | 2012 | Construction | Release of PH-series, small unibody hydraulic hammer |
| Construction | Development and introduction of SRC25, NPK's first 2-in-1 crusher, suitable for crushing and cutting Steel-Reinforced Concrete | ||
| Chemical | Release of NBL-Labo Spray Dryer and MGK Air Hammer | ||
| 2013 | Construction | Relaunch of new and improved G-series, secondary crusher (pulverizer) | |
| 2014 | Pneumatic | Introduction and release of the industry's smallest and lightest needle scaler | |
| Construction | Expansion of SRC-series crusher line-up with SRC38, and SRC48 | ||
| Chemical | Release of CNI-1 Nano Range Separator and JKE-30A Jet Mill specialized in handling small amount of raw materials | ||
| Expansion of Nabari Plant | 2015 | Chemical | Release of SPK-2 Impact Jet Mill |
| Relocation of Kanto Sales office | 2016 | Construction | Launch of PD-series: PD450(R) and PD500(R), crusher specialized in demolishing plants and factories |
| Chemical | Release of SPK-12 Jet Mill and SPKC-5 Jet Mill specialized in handling low melting point materials | ||
| Customer Service & Support Center (CSSC) established in Higashi-Osaka City, Osaka | 2017 | Construction | Expansion of the SV model line-up with SV250(R), SV400(R), and SV500(R) |
| Nippon Pneumatic Kenki Co., Ltd. was merged and acquired by Nippon Pneumatic Kogyo (NPK) | Construction | Second expansion of the SRC series crusher with SRC15(R) | |
| Construction | Expansion of G-series with the G250EH pulverizer, featuring 220V electromagnet | ||
| Construction | Release of low-noise models of PH-06~4, featuring enclosed brackets | ||
| Chemical | Launch of powder surface modifying system, using atmospheric pressure plasma | ||
| Chemical | Release of CNI-M4 Nano Range Separator | ||