Established as a brush manufacture
Incorporated as an industrial brush manufacturer under the company name Kowa Brush Ltd.
Company name changed to Kowa Brush Co., Ltd.
Started production of brushes for knitters and various electric vacuum cleaners
Started mass production of knitting machine brushes
Supplied knitting machine manufacturers such as Brother Industries, Ltd.
Applied for patent on circular brush
Increased pace of vacuum cleaner popularization
Enabled bulk orders, which were not popular at the time.（mold→molding→filling→assembly）
Started production of general suction port assemblies
Brushes for electric razors Note: Increased production for Matsushita Electric Industrial Co., Ltd.
Company renamed KOWA Inc.
Paper pack filters
Note: Use of paper packs intended to reduce trash disposal burdens
Licensed for overall vacuum cleaner assembly; began production of vacuum cleaners
Established the Cosmetics Division
pplied for patent on aluminum rotor（patent registered in 2000）
Established Yangzhou Kowa Brush Co., Ltd. in Jiangsu Province, China
Brush Division 1 (now Clean Life Consumer Electronics Division)
acquired ISO 9002 quality assurance standards
Scope of registration: Assembly, semi-assembled parts, and suction port components for vacuum cleaners
Acquired ISO 14001 environment management system certification
Established Suzhou Kowa Electric Appliance Co., Ltd. in Jiangsu Province, China
Started manufacture of air conditioner cleaning brushes
(February) Certified as an "Aichi Brand Company"
(October) Renamed divisions
Brush Division 1 became the Clean Life Consumer Electronics Division
Brush Division 2 became the Clean Industrial Equipment Division
Applied for patent on triple-spiral brush （patent registered in 2013）
Established Kowa Electric Appliance (Shenzhen) Co., Ltd. in Guangdong Province, China
Established Kowa Trading (Hong Kong) Co., Ltd.
Clean Industrial Equipment Division acquired ISO 9001 quality assurance certification
Scope of certification: Design, development, and manufacture of brushes for industrial use
(April) Launched sales of Hinata futon vacuum cleaner
Applied for patent on washer/dryer filter cleaning system
Integrated ISO 9001 and ISO 14001
quality and environmental management systems
Completed construction of the Head Office and Logistics Center
Launched sales of the "tanQest α-1" commercial vacuum cleaner