ATTO Corporation is a scientific instrument developer and manufacturer for protein/nucleic acid research. 

Long been providing more than 55 years for

Polyacrylamide Gel Electrophoresis Devices,

PAGEL(precast gel), Western blot solutionsPerista(R)Pump,

Printgraph (High-end Gel Documentation System),

Luminograph series (Imaging System for bio/chemiluminescence detection), etc.

and the products have been used in many of laboratories in Japan and other countries.

ATTO also has released new analytical tools for gene expression study as Cellgraph,

Kronos Dio/HT, Luminescenser Octa, Cluc, etc.

these days when the protein/bio-molecule research has been making significant advances

every second.

History of ATTO Corporation

1964  Mitsumi Scientific Industry Co., Ltd. Founded: January, 1964

1978  Changed the corporate name from Mitsumi Scientific Industry to ATTO Corporation
Opened Osaka branch at Minami-morimachi 2-1, Kita-ku, Osaka city

1979  Opened Tokyo Factory at Hongo 1-25, Bunkyo-ku, Tokyo

1997  Moved the head office from Hongo 7-2-3 to Hongo 1-25-23, Bunkyo-ku, Tokyo

2001  Awarded the Minister of Education, Culture, Sports, Science and Technology Prize as a person of technology promotion achievement (Fermograph)

2008  Moved the Technology and Development Center from Hongo 1-25-23, Bunkyo-ku, Tokyo to Taito 2-21-6, Taito-ku, Tokyo
Moved the head office from Hongo 1-25-23, Bunkyo-ku, Tokyo to Yushima 1-5-32, Bunkyo-ku, Tokyo

2010  Launched ATTO Korea in South Korea
The 5th Mono-dukuri Corporation Award, a new technology development prize (Nikkan Kogyo newspaper sponsored) to Luminescenser NIR and NIR-CLA

2011  Moved the head office from Yushima 1-5-32 to Motoasakusa 3-2-2, Taito-ku, Tokyo.

2012  OPTECALI-ZEPTO LLC. is an exclusive Distributor of ATTO products sales in U.S. / North America market.

2019  Cooperated new product development with OPTECALI-ZEPTO LLC, Irvine CA 

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ZEPTO LLC. is a leading global supplier of advanced technology products and systems to customers in the scientific research, life and health sciences, industrial manufacturing and defense markets. 

ZEPTO has over 10 years of industry knowledge and expertise across a broad range of technologies allowing the company to continually deliver innovative products in the areas of  biology laboratory instrumentation, spectroscopy instrument, optical components, and subsystems that enhance the functionality.

In addition, ZEPTO has contract manufacturing capability that  built a strong history of partnering with OEM customers, delivering solutions from subassemblies to full solutions.
ZEPTO is headquartered in Irvine, California.

We have been developing and supplying photonics products for the brand ATTO Bio lab products in Japan since 1964.
Three manufacturing facilities in the U.S., also Japan, China, Taipei and South Korea and has a significant global presence.

We proudly serve our customers with direct sales offices located in the U.S., Japan and South Korea, as well as an extensive network of independent distributors and sales representatives around the world.