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About Us

Company overview Yamakoh, Co., Ltd.
Representative Yoshihiro Yamazaki
Founded 1974
Stock capitol 50,000,000 Yen
Number of members 61 (including part-time workers)
Executives Yoshihiro Yamazaki, President
Yoko Yamazaki, Director
Yoshikazu Tsuji, Head Director
Operation details Corrugated plastic packaging manufacturing and sales
Cardboard packing manufacturing and sales
Polycarbonate manufacturing and sales
Teccell manufacturing and sales
Location 54-2 Ryokuenzaka, Ujitawara-cho, Tsuzuki-gun, Kyoto
Homepage http://www.yamakoh.com
TEL +81-3-6821-0244 (Only Japanese available )
FAX +81-3-3495-4113
Primary transaction institution Kyoto Bank Sumizome branch
Kyoto Chuo Shinkin Bank Ujitawara branch
Kyoto Shinkin Bank, Fushimi branch
Shiga Bank, Uji branch
Shoko Chukin Bank, Kyoto branch
Bank of Tokyo-Mitsubishi UFJ, Kyoto branch
End of fiscal period March
Primary clients
  • Beans International Corp
  • LG Electronic Japan
  • YKK Corporation
  • Epson Sales Japan Corporation
  • Olympus Corporation
  • Kaneka Foam Plastics Co., Ltd.
  • CALBEE, Inc.
  • Gunze Limited
  • Gateway Computer Co., Ltd.
  • Kokuyo Furniture Co., Ltd.
  • Sharp Corporation
  • Shachihata Inc.
  • Sony Customer Service (Japan) Inc.
  • Sony Life Insurance Co., Ltd.
  • Softbank Mobile Corporation
  • Daikin Industries, Ltd.
  • Daido Corporation
  • Terumo Corporation
  • Toyota Motor Corporation
  • Panasonic Corporation
  • Panasonic Electric Works Co., Ltd.
  • Brother Industries, Ltd.
  • Mizuno Corporation
  • Mizuho Securities Co., Ltd.
  • Asahi Kasei Medical Co., Ltd.
  • LIXIL Corporation
  • I-O Data Device Inc.
  • Ishida Co., Ltd.
  • Keyence Corporation
  • Zensho Co., Ltd.
  • Duskin Co., Ltd.
  • Tanita Corporation
  • Nitori Co., Ltd.
  • Noevir Co., Ltd.
  • Family Mart Co., Ltd.
  • Mouse Computer Co., Ltd.
  • Wakasa Seikatsu Corporation
  • Ippodo Tea Co., Ltd.
  • Maruzen Co., Ltd.
  • Senshukai Co., Ltd.
  • Shimazu Corporation
  • Hitachi Transport System, Ltd.
  • Fukujuen Co., Ltd.
  • Kansai Glico Co., Ltd.
  • Kyoto Seika University
  • Du Pont-Mitsui Polychemicals Co., Ltd.
  • Mitsui Engineering & Shipbuilding Co., Ltd.
  • Sumitomo Rubber Industries Co., Ltd.
  • Showa Women's University
  • Morinaga Milk Industry Co., Ltd.
  • Co-op Net Co., Ltd.
  • All Nippon Airways Co., Ltd.
  • Dainippon Sumitomo Pharama Co., Ltd.
  • Toei Co., Ltd.
  • Nissan Motor Co., Ltd.
  • Nisshin Food Products Co., Ltd.
  • Nippon Ericson K.K.
  • Japan Tobacco Inc.
  • Nidec CorporationNidec Corporation
  • Ajinomoto Medica Co., Ltd.
  • Meiji Co., Ltd.
  • Japan Post
  • Japan Self Defense Force

(listed in alphabetical order based on Japanese naming conventions)


1974 Founded as a private company, Yamakoh, in Fushimi-ku, Kyoto.
1976 Incorporated as Yamakoh, Co., Ltd. (5,000,000 yen stock capital)
1977 Head office set established in Shimazu-cho, Fushimi-ku, Kyoto.
1978 Cardboard packaging factory established in Makishima-cho, Uji.
1979 Factory relocated to Mukaijima, Fushimi-ku.
1980 Introduced printer slotter 2400 from Umetani Mfg. Co., Ltd.
1982 Introduced Mikawa Steel M&M 1287 Auto-press.
1988 Established Best Pack Co., Ltd. (10,000,000 yen stock capital).
1992 Stock increases to 10,000,000 yen.
1993 Introduced Umetani printer slotter (UPS MKIII 2700).
1995 Commenced production of Sumika Plastech corrugated plastic packaging.
1998 Introduced Tokyo Decks CAD/CAM system.
Launched company website.
2001 Expanded Head office/factory and relocated to Makishima-cho, Uji.
Installed Kudo semi-automatic currogated plastic die cutter.
Stock increases to 20,000,000 yen.
2002 ISO14001 Certified.
Introduced Kudo heat-based ruling machinery for corrugated plastic production.
Introduced 4-point drill press machinery.
Introduced Mitsukawa metal rivet setter for corrugated plastic products.
Introduced Nitto Seiko hollow rivet setter.
2004 Introduced large-scale ink-jet printer for cardboard.
Introduced vertical cutting slicer machine for cushioning material.
Introduced thermal bonding machine for cushioning and automatic belt cutter.
Expanded CAD/CAM system (2).
2005 Introduced fiber-optic connection and server management system.
Introduced CTI System.
Expanded CAD/CAM system (3).
Introduced Thompson Super-Press 2000.
2006 Introduced edge heating machine.
Introduced ultrasonic welding machine.
Introduced addiotional Super Presses (2).
Introduced ultrasonic corner welder.
www.pladan.com began in October.
Introduced heat-bending machines (2).
2007 Introduced more heat edge welders (2).
Established corrugated plastic packaging specialized factory (In Kumiyama-cho, Kyoto Prefecture).
Introduced heat-bending machines (3).
Introducer two additional hollow plastic rivet setters.
Stock capital increases to 40,000,000 yen (May 2007).
Ujitawara Factory established (operating from October 9).
Introduced more heat-bending machines (4 - 6).
Introduced Thompson Super-Press CM1410.
2008 www.pladan-sheet.com opened.
Stock increases to 50,000,000 yen.
Expanded CAD/CAM system (4, 5).
Merger with Best Pack Co., Ltd.
www.kayoibako.com opened
Large corrugated plastic container site aaabox.com opened
pladan-catalog opened
Introduced SFA.
2009 Updated CAM/CAD (6).
Renovated large corrugated plastic container site Orius.com
Renovated company website www.yamakoh.com
Introduced custom hole punch machine.
Established polycarbonate specialization website www.polyca.com.
2010 Renewed www.pladan-sheet.com
Renewed polycarbonate specialization website www.polyca.com.
Introduced Edge sealer machine.
Introduced large-scale ink-jet printer.
Established www.senkyo-kanban.com
Established Teccell JP

Now recruiting suppliers and business partners

Yamakoh is currently seeking international suppliers capable of providing materials, machinery, facilities, and other products and services.

Looking for a distribution material supplier or production facilities in Japan?

Yamakoh can provide support for international firms seeking to enter the Japanese market.