OKLEX Co. Ltd.
About Us
HOME About Us

About Us

Company Profile

Company Name OKLEX. CO.,LTD.
Representative Yasuyuki Onsho, President
Head Office, Plant 3-3-19 Minatojima, Minamimachi, Chuo-ku Kobe City, Hyogo Prefecture 650-0047, Japan
Tel. +81-78-304-1551 Fax. +81-78-304--8787
Toyonaka Plant 1-7-38 Shonai, Takaramachi, Toyonaka City,
Osaka Prefecture 561-0836, Japan
Tel. +81-6-6333-7711 Fax. +81-6-6333-7740
Tokyo Sales Office 2F A&K Bldg., 2-11-7 Iwamoto-cho Chiyoda-ku, Tokyo 101-0032, Japan
Tel. +81-3-5820-4311 Fax. +81-3-5820-4313
Year of Establishment September, 1953
Capital 20,000,000 yen
The Bank of Tokyo-Mitsubishi UFJ Ltd. Kobe Branch
Japan Finance Corporation Osaka Branch
Registered Business Activities Construction work (Interior Construction Industry)
Registration Number (Hyogo prefectural Governor) . (Han-21) Number 115543
Construction work
Registration Number (Hyogo prefectural Governor) . (Han-21) Number 115543
Certification of JIS Mark No. JQ0507002
JIS (Japanese Industrial Standards) Number and Name :
JIS H4301 (lead sheet and hard lead Sheet)
Business Associations, etc., The Osaka Chamber of Commerce and Industry
Japan Building Material Association
The Architectural Association of Japan
National Co-Operative Association of Lead Pipe & Board Manufacturer
The Japan Society of Seismic Isolation
Atomic Energy Society of Japan
Osaka Prefectural Manufacturing & Industrial Association

The History of the OKLEX

September 1953 Jiro Onsho, present chairman, established Osaka Kakoki Seisakusho, which mainly took on lead construction jobs, began doing sulfate plant constructions and acid-proofing works for chemical fiber, paper-marking manufacturing and smelters in the domestic and international market.
March 1972 Developed a noise control system.
Set up a lead rolling machine in the Suita plant and began operation.
November 1976 Incorporated the company with 10 million yen in capital and changed the name to Osaka Kako, Co., Ltd.
Began to research on a vibration control system using lead.
August 1978 Started working on the development of Radiation shielding equipment.
January 1979 Launched a sales office in Tokyo to expand sales.
August 1979 Began manufacturing and sales of "PHON SHEET", lead-lined plaster boards, for construction works authorized by the Department of Transportation, which were used in the ceiling of private residences in the surrounding area to insulate airport noise.
December 1987 Installed an extrusion press machine.
November 1999 Suita plant became a JIS (Japan Industrial Standard) certified plant. (No.599119)
December 1999 Increased the Capital to ¥20 million.
September 2007 Obtained a patent for the development of lead wool manufacturing device.
January 2008 Registered a trademark of "RAP", metal container to store radioactive materials.
April 2009 For business expansion, relocated the head offices and plant to the address below:
3-3-19 Minatojima Minamimachi chuo-ku, Kobe 650-0047, Japan.
Kobe plant becomes a JIS (Japan Industrial Standard) certified plant:
JIS (Japanese Industrial Standards) Number and Name:
JIS H 4301 (lead sheet and hard lead Sheet)
November 2012 Changed the company name to OKLEX Co., Ltd.
August 2018 Obtained KES Step 1 Certification. (Kobe plant and Toyonaka plant)
KES=Kyoto Environmental Management System Standard