About Us

Top Message

We are facing unprecedented and rapid changes in world situations, including delays in supply chains in diverse industries and the impact on economic activity of stagnant shipping due to the global COVID-19 pandemic.

In order to respond to the trend of the times, we are required to judge and act more quickly.

Diamic's basic stance is to put the customer first.
We also aim to achieve the happiness of our employees, to reform ourselves without fear of change, and to quickly deliver products that meet the needs of the times.

Furthermore, we will contribute to environmental conservation and the achievement of the SDGs, and we will also ensure thorough compliance and strive to reform our work styles.

We look forward to your continued support and patronage.

DIAMIC Co., Ltd.,
President and CEO Yuji Takagami

Company ProfilePDF [for printing]

Name DIAMIC Co., Ltd.
President Yuji Takagami
Head Office 2-10-14, Ryogoku, Sumida-ku, Tokyo 130-0026, Japan
Established in April 1, 1992
Capital 100 million yen
Settlement period From April 1 to March 31 of the following year
Employees 121(as of April, 1, 2022)
Business description Sales of printing plate making and information materials and related equipment.
Main banks MUFG Bank, Ltd., Mitsubishi UGJ Trust and Banking Corporation

NetworkPDF [for printing]

Head Office

Address Ryogoku City Core 13F, 2-10-14 Ryogoku, Sumida-ku, Tokyo 130-0026, Japan
Tel +81-3-5600-1540
Fax +81-3-5600-1599

Order center

Address 1-6-6 Kaiden, Nagaokakyo-shi, Kyoto 617-8666, Japan Mitsubishi Paper Mills Limited Kyoto Mill

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Technical Service Center

Address 15 Kotarihashimoto, Nagaokakyo-shi, Kyoto 617-0833, Japan

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PICTORICO Shop & Gallery

Address RyogokukokugikanmaeTousei Building 5F,1-2-16, Yokoami, Sumida-ku, Tokyo 130-0015 Japan

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Osaka Branch Office

Address 4-3-45 Oohiraki, Fukusima-ku, Osaka-shi, Osaka 553-0007, Japan NAMITSU Co., Ltd.

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Kyoto Sales Office

Address 15 Kotarihashimoto, Nagaokakyo-shi, Kyoto 617-0833, Japan

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Takamatsu Sales Office

Address Tahi Center Building I, 1507-14 Tahishimomachi, Takamaatsu-shi, Kagawa 761-8075, Japan

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Sendai Branch

Address 1-11-1 Miyagino, Miyagino-ku, Sendai-shi, Miyagi 983-0045, Japan

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Nagoya Branch

Address 2-42-32 Shinsakae, Naka-ku, Nagoya-shi, Aichi 460-0007, Japan

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Kanazawa Sales Office

Address Parkside Nagadohe 1F, 1-2-28 Nagadohe, Kanazawa-shi, Ishikawa 920-0867, Japan

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Fukuoka Branch

Address 4-14 Nakagofukumachi, Hakata-ku, Fukuoka-shi, Fukuoka 812-0035, Japan

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Hiroshima Sales Office

Address Med Hakushima 1F, 13-13 Hakushimanakamachi, Naka-ku, Hiroshima-shi, Hiroshima 730-0002, Japan

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Hokkaido Sales Group

Address Fukuyama Minami Sanjo Building, 1001-5, Nishi 10-chome, Minami 3-jo, Chuo-ku, Sapporo-shi, Hokkaido 060-0063, Japan

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The Representative Office of DIAMIC Co., Ltd. in Ho Chi Minh City

Address Suite A5, Vietcombank Tower Level 21, No.5, Me Linh Square, Ben Nghe Ward, District 1,Ho Chi Minh City, Vietnam
Tel +84-28-3827-1901

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Company HistoryPDF [for printing]

1926 Established Yamamoto Shoten.
1928 Began production and sales photosensitive paper.
1947 Become an agent of Mitsubishi Photographic Paper.
1948 Incorporated and changed name to Yamamoto Shokai Co., Ltd.
1950 Released "Gekko" a monochrome photographic paper.
1959 Established Gekko Shokai Co., Ltd.
1965 Released Mitsubishi Color Photographic Paper.
1971 Released Mitsubishi Printing Plate Material.
1974 Released "Mitsubishi Silver Master" direct platemaking system.
1978 Released the first domestic mini lab equipment.
1988 Released communication paper.
1990 Released Mitsubishi Color Film.
1992 Merged Yamamoto Shokai Co., Ltd. and Gekko Shokai Co., Ltd.
Established DIAMIC Co., Ltd.
1994 Released "Mitsubishi Silver Digiplate" an economical CTP system.
1996 Released inkjet paper.
Released digital photo system.
1997 Released large format full color input/output system.
1998 Released "SDP-α2400" a A2 size aluminum plate setter.
Released "SDP-Eco1630" a A3 size CTP setter.
2000 Released "COMTOP" a A2 size SDP plate setter.
2002 Released "VIPLAS" an aluminum CTP setter using violet laser.
2004 Released "FREDIA" a new CTP setter for polyester plate.
2005 Move head office to Marunouchi, Chiyoda-ku, Tokyo.
Released "PD-News" a CTP plate for newspaper.
2006 Acquired ISO 14001 and FSC® certification.(FSC® C007495)
Released "DIA IJ" an inkjet media.
Released "Mitsubishi Silver Plating System".
Released "SDP-Eco1630IIIR/mono" a high-speed quarter-kiku size CTP setter with environment friendly processer.
2008 Released "FREDIA Eco" a A2 wide size CTP setter with environment friendly processer for polyester plate.
2009 Released "TDP-459" a perfect processed-less CTP system.
2010 Released "FREDIA Eco W" a B2 size CTP setter with environment friendly processer for polyester plate.
2011 Released "TDP-324" a perfect processed-less CTP system.
Released "DIALIBRE Portal" a calibration cloud service and ordering system.
Released "UV-Latex" a series of DIA IJ.
Released "Mitsubishi DP series" a media for digital press.
2012 Move head office to Ryogoku, Sumida-ku, Tokyo.
Released "SaiVis" a film for projector by Mitsubishi.
2013 Released "mydome" a non-woven head cover for sound sleep, warmness and moisture.
2015 Released "TGP-ε" a process-less thermal CTP aluminum plate by Mitsubishi Paper Mills Limited.
2016 Released "MADIATH" a thermal laser CTP system by Mitsubishi Paper Mills Limited.
Released "Ice-Stick" a rehabilitation tool for dysphagia.
2017 Released "PUR-430" a PUR, perfect bookbinding machine.
2018 Established the Representative Office of DIAMIC Co., Ltd. in Ho Chi Minh City.
2019 Voluntary return of ISO 14001
2020 Merged with PICTORICO Co., Ltd.
Released "pure Leaf series" a Japan-made alcohol sanitizer.
2021 Released Japan-made, three-layers, non-woven mask.

We believe that it is necessary not only to get profit, but also to fulfill our responsibilities CSR(Corporate Social Responsibility), safety and quality, environment and social contribution for keeping being a member of society. As a member of the Mitsubishi Paper Mills Group, we will practice "environmental management" toward "sustainable development of society." Our mission is for each employee to contribute to the sustainable development of society with providing environmentally friendly products and services.

Thermal Digiplater

Thermal Digiplater is a heat-sensitive CTP system with advanced environmental performance for the small lot printing market. Sharp images can be output to the printing plate by drawing directly with the thermal method. No ink ribbon nor toner is required, so you can save a waste.

Major affiliated companies

Pulp and paper manufacturer

Mitsubishi Paper Mills Limited


Mitsubishi Oji Paper Sales Co., Ltd.