Slip Ring | Tokyo Tuushin Kizai Co., Ltd.

1924

Long-established manufacturer of Slip rings

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TOKYO TUUSHIN KIZAI CO., LTD.

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	Our Beginning
	1924	Kumasaburo Kakiuchi established Kakiuchi Works as the first manufacturer in Japan to specialize in carbon products for communication devices in Tokyo.　This was right in the middle of the time when Tokyo was recovering from the Great Kanto Earthquake in 1923.　His works started manufacturing and selling carbon granules.

	Manufacture of Carbon Products
	1944	We established Tokyo Tuushin Kizai Works.　This would go on to form the basis of our current company name.　We started manufacturing and selling carbon products for electronics, automobile and specials in addition to carbon products for communication devices.　Furthermore, we started manufacturing and selling carbon arresters in response to further demands from our customers who had recognized our track record in supplying carbon products for communication devices.
	1953	We incorporated Tokyo Tuushin Kizai.　We then further expanded our business while accumulating technologies and expertise related to machining production of carbon products.　After this,we steadily improved our performance by riding the wave of the rapid economic growth in this period.
	1969	We built our new head office in Tokyo.　We further established and started operating Shirakawa Factory in Fukushima Prefecture.　This plant mainly manufactured electric power carbon brushes and similar products.
	1975	We started exporting of carbon products for communication devices.　Our carbon products have also been recognized by those overseas.　Moreover, we started manufacturing our carbon arrester Number 1001.　We produced 5.5 million of these arresters over more than ten years.

	Launching of Slip rings
	1980	Many of the slip rings used in industrial fields in Japan at this time were manufactured in the United States.　However, their slip rings had problems in terms of quality. This was troubling for many customers in Japan.　We have a track record in carbon brushes so we decided to take on this challenge in response to eager requests from our customers.　We successfully developed a mold slip ring.
	1983	We developed a integrated slip ring incorporated with brushes.　From this beginning, we started the full-scale development, design and sale of slip rings.　This is something we have continued doing until this day.　We have produced several thousands types of slip ring into many industrial fields.
	1986	We started manufacturing our brush Assy for VTR.　We produced 10 million of these brushes over more than six years.
	2000	We acquired ISO 9001 management system certification. We updated this in 2003.
	2009	We successfully developed slip rings for high-frequency bands. We successfully developed optical slip rings.
	2012	We developed slip rings for amusement equipment.　These slip rings were produced more than 36 thousand in three months in this year and we have received high praise. We established and started operating a factory in Thailand due to an expansion in the production of slip rings.
	2013	Our slip ring was adopted by one of the famous CCTV manufacturer in Japan. The annual production of this is as many as 20 thousands and we still receive high praise from each company as the slip ring manufacturer for high - quality CCTV.
	2015	We acquired JIS Q 9001:2008 & JIS Q 9100:2009 management system certification. We welcome our new leader and we will expand our slip ring design / development / sales operations worldwide.

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Quality & Environmental Policy

We will contribute to society by continuously improving through creation and
challenge so that our quality management system continues to remain effective
with us providing products that meet the needs of our customers ....

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Machining & Measuring

We have introduced the latest automatic manufacturing machines and inspection &
measurement devices into our Shirakawa Factory so that we can make parts with a
high level of completion.　In addition to these ....

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Standard Slip Rings

We have several thousand types of Slip Rings " TSR Series " designed by our
researching and developing for more than 35 years.　Here we present our
representative standard TSR from mold housing model with ....

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