Founded in Utsunomiya City, Tochigi Prefecture

Toyo Roshi founded in Utsunomiya City, Tochigi Prefecture, as Japan's first manufacturer of filter paper and test paper.

Growing demand and more advanced products

To deal with growing demand and greater product sophistication, and achieve greater specialization, Toyo Roshi Kaisha, Ltd. split off the following departments:

■Scientific Equipment Manufacturing Department (two companies with same name)
Toyo Seisakusho Kaisha, Ltd. (Chuo City, Tokyo Prefecture)
Toyo Seisakusho Kaisha, Ltd. (Chuo Ward, Osaka City, Osaka Prefecture)

■Filter Paper Manufacturing Department
Toyo Tokushi Kogyo Kaisha, Ltd. (Utsunomiya City, Tochigi Prefecture)

■Sales Department (two companies with same name)
Toyo Kagaku Sangyo Kaisha, Ltd. (Chuo City, Tokyo Prefecture)
Toyo Kagaku Sangyo Kaisha, Ltd. (Chuo Ward, Osaka City, Osaka Prefecture)

Unification of the ADVANTEC Group

Made efforts to strengthen and develop the group by establishing “ADVANTEC” as the group’s unified brand.

Establishment of new Tokyo Product Center.

Established new Tokyo Product Center (Yashio City, Saitama Prefecture).
Absorbed Far East Division (Utsunomiya City, Tochigi Prefecture) of the US subsidiary Toyo Roshi International, Inc. as the Overseas Sales Department of ADVANTEC Toyo Kaisha, Ltd.

Establishment of new Niigata Factory

Established new Niigata Factory as the group’s largest production base, producing our mainstay products, analytical filter paper and cartridges.

ISO 9001 certification acquired by Manufacturing Department

Conversion of Manufacturing Department to a sales and trading company

Business of Manufacturing Department transferred to Toyo Seisakusho Kaisha, Ltd., which becomes a sales and trading company.

Certification under Eco Action 21
Establishment of new No. 2 Warehouse at Tokyo Product Center Received approval for Management Reform Plan

Certified under Eco Action 21
Established No. 2 Warehouse at Tokyo Product Center.
Three companies in the ADVANTEC Group received approval for Management Reform Plans.

Launch of ADVANTEC Nissei Kaisha, Ltd.

Added ADVANTEC Nissei Kaisha, Ltd. (previous name: Nissei Setsubi Kogyo Kaisha, Ltd.) as a member of the ADVANTEC Group, thereby establishing a system capable of responding to a wide range of needs, including equipment construction work.

Added Kanto Kobunshi Kaisha, Ltd. (previous name: Yugen Gaisha Kanto Kobunshi) as a member of the ADVANTEC Group, thereby establishing a system capable of molding high-performance, high-quality synthetic resin parts, and designing and fabricating dies.

Established new Nakajo Factory, and transferred production of filter pads from the Ogawa Factory.

Relocation of Headquarters

Relocated Headquarters (Toyo Roshi, ADVANTEC Toyo) from Otowa, Bunkyo City to Uchisaiwaicho, Chiyoda City.