Ryoka Systems Inc. Ryoka Systems Inc.
Top Outline of the Company Company Milestones

Company Name Ryoka Systems Inc.
http://www.rsi.co.jp/
Established April 1st, 1970
Capital 300 Million yen
Main Shareholders Mitsubishi Chemical Corporation, Mitsubishi Plastics, Inc., Mitsubishi Chemical Logistics Corporation, etc.
Representative Director and President Motoo Kobayashi
Fiscal Year April 1 - March 31
Turnover 2009-24.1 Billion yen
Main Customers Mitsubishi Chemical Corporation and its group companies, Sony Music Entertainment Inc., FUJITSU Ltd., IBM Japan,Ltd., etc.
Numbers of Employees 841(as of April, 2011)
Affiliated Companies Medical Systems Institute, Inc.
Alphatec Solutions Co., Ltd.
Addresses Head Office :
Tokyo Dia Bldg., 1-28-38, Shinkawa, Chuo-ku, Tokyo, 104-0033 Japan
TEL : 03-3553-6341 FAX : 03-3553-2475
(Sales & Marketing Division)
Osaka Branch Office :

Meiji Yasuda Seimei Osaka Midousuji Building, 5F.
4-1-1, Fushimi-machi, Chuo-ku, Osaka-shi, Osaka, 541-0044 Japan
TEL : 06-6204-8526 FAX : 06-6204-8528
(Production Systems Coordination Division)
・Production Systems Center,
 Mizushima Group :

Mizushima Plant, Mitsubishi Chemical Corporation
3-10, Ushiodori, Kurashiki-shi, Okayama, 712-8054 Japan
TEL : 086-457-3170 FAX : 086-457-2978
(Production Systems Coordination Division)
・Production Systems Center,
 Yokkaichi Group :

Yokkaichi Plant, Mitsubishi Chemical Corporation
1, Toho-cho, Yokkaichi-shi, Mie, 510-8530 Japan
TEL : 059-345-7309 FAX : 059-345-7498
(Production Systems Coordination Division)
Kyushu Center :

Kurosaki Plant, Mitsubishi Chemical Corporation
1-1, Shiroishi, Kurosaki, Yawata-Nishi-ku, Kita-Kyushu-shi, Fukuoka, 806-0004 Japan
TEL : 093-643-2850 FAX : 093-643-2023
(Production Systems Coordination Division)
・Setouchi Center :

Mizushima Plant, Mitsubishi Chemical Corporation
3-10, Ushiodori, Kurashiki-shi, Okayama, 712-8054 Japan
TEL : 086-457-2130 FAX : 086-457-2978
(Production Systems Coordination Division)
Setouchi Center Shikoku Office :

Sakaide Plant, Mitsubishi Chemical Corporation
1, Bannosu-cho, Sakaide-shi, Kagawa, 762-8510 Japan
TEL : 0877-46-3612 FAX : 0877-46-9011
(Production Systems Coordination Division)
・Chubu Center :

Yokkaichi Plant, Mitsubishi Chemical Corporation
1, Toho-cho, Yokkaichi-shi, Mie, 510-8530 Japan
TEL : 059-345-7009 FAX : 059-345-7498
(Production Systems Coordination Division)
Kashima Center :

Kashima Plant, Mitsubishi Chemical Corporation
17-1, Towada, Kamisu-shi, Ibaraki, 314-0102 Japan
TEL : 0299-96-1125 FAX : 0299-96-8012
(Production Systems Coordination Division)
Naoetsu Center :

Naoetsu Plant, Mitsubishi Chemical Corporation
1, Fukuda-cho, Joetsu-shi, Niigata, 942-8611 Japan
TEL : 025-545-6053 FAX : 025-545-6151
(Production Systems Coordination Division)
Shiga Center Nagahama Office :

Nagahama Plant, Mitsubishi Plastics,Inc.
5-8, Mitsuya-cho, Nagahama-shi, Shiga, 526-8860, Japan
TEL : 0749-65-5238 FAX : 0749-63-1143
(Production Systems Coordination Division)
Shiga Center Santo Office :

Santo Plant, Mitsubishi Plastics,Inc.
347, Inokuchi, Maibara-shi, Shiga, 521-0234 Japan
TEL: 0749-55-3403 FAX : 0749-55-3091
(Business Systems Division)
Onahama Center :

34 Aza Takayama, Onahama, Iwaki-shi, Fukushima, 971-8101 Japan
TEL : 0246-54-3122 FAX : 0246-53-6904
(R&D Support Division)
Yokohama Center:

Mitsubishi Chemical Group Science and Technology Research Center, Inc.
1000, Kamoshida, Aoba-ku, Yokohama-shi, Kanagawa, 227-0033 Japan
TEL : 045-963-3285 FAX : 045-963-4260
(IT Infrastructure Division
Customer Service Dept.)
Tsukuba Office :

Tsukuba Plant, Mitsubishi Chemical Corporation
1000, Higashimamiana-cho, Ushiku-shi, Ibaraki, 300-1295 Japan
TEL : 029-841-8232 FAX : 029-843-1904
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