SHINKOSHA

Trade name

SHINKOSHA CO., LTD.

Location

Head office

2-4-1 Kosugaya, Sakae-ku, Yokohama, Kanagawa 247-0007 Japan
Phone: +81-45-892-2171
Fax: +81-45-892-2192

Tochigi Plant

1043 Mizuki-cho, Sano, Tochigi 327-0516 Japan
Phone: +81-283-87-0234
Fax: +81-283-87-0024

Date of establishment

May 26, 1947

Management philosophy

"Belief (Shin) is the essence of everything" ? "Trust (Shin-yo), loyalty (Shin-rai), and faith (Shin-gi)"

Line of business

Manufacture and precision processing of oxide single crystals (including sapphire and rutile)
Manufacture of optical communication devices (including optical isolators and rutile prisms)

Manufacture of optical isolators for fiber lasers and optical fiber sensors

1947

Established as a synthetic jewelry manufacturing company.
Head office: Kobiki-cho, Chuo-ku, Tokyo.
Plant: Kosugaya, Totsuka-ku, Yokohama.

1960

Head office moved to Ginza, Chuo-ku, Tokyo.

1970

Started production of sapphire watch windows.

1980

Jointly established Rubyca Industry with Japan Carbide Industry.

1987

Entered the optical communication area.

1989

Started sales of single crystal substrates for superconductive thin films

1994

Head office moved to Kyobashi, Chuo-ku, Tokyo.

1995

Started sales of sapphire substrates for blue LEDs.

1997

ISO9001 certification for DNV
Won the Kanagawa Industrial and Technological Development Award for the development of oxide single crystal step substrates

2001

Head office moved to Kosugaya, Sakae-ku, Yokohama.
Sakudaira Plant operation started.

2002

Tochigi Factory operation started.
Won the Kanagawa Industrial and Technological Development Award for the development of small optical monitor modules.

2003

ISO9001 (2000 version)
Sakudaira Plant closed and merged with Head office.
Tochigi Factory renamed to Tochigi Plant.

2004

Started sales of optical fiber sensor.

2006

Selected as one of "Introducing 300 of Japan's Dynamic Monodzukuri (Manufacturing) SME's Supporting the Japan of Tomorrow" by Ministry of Economy, Trade and Industry.

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