OHKI CO., LTD. Creates food-grade filters with the betterment of the world in mind

Overview

Company Name OHKI CO., LTD.
Established October 23rd, 1980
Capital Fund 70 million Yen
Sales 11.6 Billion Yen (2025 Results)
Number of Employees 248 (As of Nov. 2025)
Company President Masahiro Nakamuro
Locations
Head Office
6-6, Minamikyuhoji-machi 3-chome, Chuo-ku, Osaka 541-0058 JAPANMAP
TEL : +81-6-6282-4704 / FAX : +81-6-6282-4708
Technological Development Center
3417, Onohara, Onoharacho, Kan-Onji, Kagawa 798-1611 JAPANMAP
        
K-1 Factory
93-21, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPANMAP
K-2 Factory
93-33, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPAN
K-3 Factory
93-33, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPAN
K-4 factory
93-5, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPAN
K-5 factory
93-5, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPAN
K-SOUKO
93-36, Tei, Kunitacho, Kan-Onji, Kagawa 768-0040 JAPAN
S-1 factory
18-3, Bannosucho, Sakaide, Kagawa 762-0064 JAPANMAP
Toyama Factory
1 Shoin, Kamiichi-machi, Nakaniikawa-gun, Toyama 930-0357 JAPAN
OHKI Shanghai
Room 301, Tongda Building, No.1, Lane 600,Tianshan Road, Shanghai 200051, CHINA
Taiwan Taoyuan Factory (UNIKI TECHNOLOGY)
No.376, Hung-Chun Road, Ping-Chen Dist,Taoyuan 32466, TAIWAN R.O.C.
Business Field Specialty paper development Production and distribution of teabag / coffee drip bag filter materials Production and development of filter machines          

Company Timeline

1980 Oct.Established the company to research and develop specialty filters for sale and distribution.
1983 Oct.Developed OKILON, our first teabag filter material.
1984 Aug.Developed a filling machine designed for the OKILON filter.
1985 Apr.Developed OKILON Antibacterial Sheet.
1987 Dec.Increased capital by 12.5 million yen.
1988 Oct.Opened the first factory in Kan-onji, Kagawa, Japan.
1989
  • Mar.Developed MELPET coffee bag filter.
  • Aug.Developed MOISTER teabag filter.
  • Sep.Developed FULLVEIL teabag filter.
1992 Feb.Opened a new factory in Ohnohara, Kagawa, Japan.
1995 Apr.Established the R&D Department.
1996 Oct.Developed SONASEA teabag filter.
1997 Dec.Developed PACHIT, a drip coffee bag.
1998 Apr.Increased capital by 25 million yen.
2001 Nov.Acquired ISO 9001 certification.
2002 Apr.Established the International Sales Department.
2003
  • Sep.Constructed a new factory in Yamada Industrial Complex.
  • Dec.Relocated head office to Bakuro-machi, Osaka, Japan.
2004
  • Sep.Increased capital by 50 million yen.
  • Dec.Acquired ISO 14001 certification.
2007
  • Mar.Formed a joint venture with UNIKI TECHNOLOGY in Taiwan, in cooperation with UNION CHEMICAL.
  • Sep.Increased capital by 65 million yen.
  • Dec.Opened the K-2 Factory in Kan-onji, Kagawa, Japan.
2008 Oct.Developed sustico, a plant-based PLA nonwoven filter.
2009
  • Apr.Developed sustico PLA woven mesh filter.
  • Jul.Established the K-1 Factory warehouse.
  • Oct.Developed PROSSIMO, a high-speed filling machine for PACHIT.
2010
  • Dec.Established K-3 Factory in Kan-onji, Kagawa, Japan.
  • Dec.Relocated head office to Minamikyuhoji-machi, Osaka, Japan.
2011 Apr.Developed Hybrid teabag filter.
2012 Oct.Developed SUMRISE, a machine for producing our signature PACHIT product.
2013
  • Sep.Increased capital by 70 million yen.
  • Oct.Planned the establishment of a branch office in Shanghai.
  • Nov.Acquired FSSC 22000 certification.
2014
  • Feb.Established the Patent & Legal Division.
  • Oct.Established K-Souko warehouse in Kan-onji, Kagawa, Japan.
2015
  • Mar.Established K-4 Factory
  • June.Celebrated the company's 35th anniversary with an employee trip to Hawaii.
2017
  • Mar.Installed an automated production line in the K-4 Factory.
  • Oct.Began a joint research collaboration with Kagawa University.
2019
  • May.Began a joint research collaboration with Shikoku Polytechnic College.
2020
  • Aug.Developed a plant-based nonwoven coffee drip bag PACHIT.
  • Nov.Opened S-1 Factory in Sakaide, Kagawa, Japan.
2021
  • Nov.Opened the Technological Development Center in Ohnohara, Kagawa, Japan.
2022
  • Mar.Established K-5 Factory.
2023
  • May Became an official partner of the J3 League soccer team Kamatamare Sanuki.
2024
  • Mar. Completed renovation of the K-1 Factory building.
2025
  • Mar. Construction completed for a new workshop in Nagise-cho, Kagawa, Japan.