Corporate information

We will do our best to make
the products satisfactory.

Aboue us

Name of company
5-8-5, Yokoshojicho, Higashiosaka-shi, Osaka Japan
TEL:+81-72-980-7175 FAX:+81-72-980-7176
Tetsuya Mizutani
10,000,000 JPY
Group companies
Marqone Co., Ltd.
Contact information
Please inquire from the inquiry formInquiry form


Corporate office locations
5-8-5, Yokoshojicho, Higashiosaka-shi, Osaka Japan

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Aug 1995
Established Seventy Eight Co., Ltd. (as a work tool manufacturing and sales company)
Jul 1996
Specialize in the development and production of welding related tools, equipment etc.
Jul 2007
Opened a warehouse and workshop in Shimorokumanji-cho, Higashi-Osaka city.
Aug 2015
Opened Tamakushi Warehouse in Tamakushi-cho  higashi, Higashi-Osaka City to store new products, prototypes and products shipped overseas.
Dec 2015-Apr 2016
For many years, developed and prototyped a welding machine dedicated work tool, patents, designs, utility models, trademarks etc. Multiple items application, approved.
Jun 2016
Opened Shimorokumanji Office in Shimorokumanji-cho, Higashi-Osaka City to prepare for online shopping and domestic and overseas sales departments.
Jun 2017
Online sales start.(Amazon,Rakuten)
Sep 2017
We exhibited at International Welding Show in Germany.
Nov 2017
We exhibited at FEBTECH in Chicago U.S.A.
Aug 2019
Shimorokumanji Warehouse and Tamakushi Warehouse have been relocated into Yokoshoji Warehouse.(yokoshoji-cho Higashiosaka-city OSAKA)
Nov 2020
Shimorokumanji office have been relocated into Yokoshoji Warehouse.