Outline of Company

Corporate Profile

COMPANY NAME Toyonaga Denki Kenkyusyo Co., Ltd.
PRODUCTS Design and manufacturing small sized molded Commutators for motors, Slip Rings and Contact parts, Plastic molding products, Metal stamping products.
Cutting Sintered metal parts
Design and manufacturing Die Mold and Jig
Assembly of Electrical components
CAPITAL 80 million yen (as of March, 2016)
HEAD OFFICE 2-10-11 Narimasu, Itabashi-ku, Tokyo 175-0094, Japan
Phone: +81-3-3975-2114, Fax: +81-3-2975-2115
SAITAMA FACTORY 1559-6 Uetomi, Sanbocho, Iruma-gun, Saitama, 354-0045, Japan
Phone: +81-49-259-1811, Fax: +81-49-259-1810
Customers
Customers – Japanese Enterprises

AISIN SEIKI CO., LTD.
CANON INC.
C.I. TAKIRON CO., LTD.
CITIZEN CHIBA PRECISION CO.,LTD.
CITIZEN MICRO CO., LTD.
DENSO CORPORATION
FINE SINTER CO.,LTD.
JVCKENWOOD CORPORATION
KEIHIN CORPORATION
MINEBEAMITUMI CO., LTD.
MITSUBISHI ELECTRIC CORPORATION
NIDEC COPAL CORPORATION
NIDEC SEIMITSU CORPORATION
NIFCO INC.
PANASONIC CORPORATION
SHOWA RASENKAN SEISAKUSHO CO.,LTD.
SONY CORPORATION
TAMAGAWA SEIKI CO., LTD.
TAMRON CO., LTD.
TECHTUIT CO.,LTD.
TOA CORPORATION
TOKYO AIRCRAFT INSTRUMENT CO., LTD.
TOKYO MICRO CO., LTD.

Customers – Overseas Enterprises

PT. ASTRA DAIHATSU MOTOR
BUEHLER MOTOR GMBH
CEBI MICROMOTORS SWITZERLAND S.A.
CROUZET MOTOR SCA
PT.DENSO INDONESIA
DENSO (THAILAND) CO., LTD.
DR.FRITZ FAULHABER GMBH & CO.,KG
FAULHABER MINI MOTOR S.A.
PT.FINE SINTER INDONESIA
PT. HITACHI CHEMICAL INDONESIA
HITACHI CHEMICAL(THAILAND)CO.,LTD.
JANOME (THAILAND) CO., LTD.
JOHNSON ELECTRIC
MITSUBISHI ELECTRIC THAI-AUTO PARTS CO., LTD.
PT.MUSASHI AUTO PARTS INDONESIA
NIDEC COPAL (THAILAND) CO., LTD.
NIDEC COPAL (VIETNAM) CO., LTD.
NIDEC COPAL PRECISION VIETNAM CORPORATION.
PANASONIC MANUFACTURING (THAILAND) CO., LTD.
SIAM AISIN CO.,LTD.
THAI SUZUKI MOTOR CO., LTD.
THALES JAPAN K.K.

OVERSEAS BASES

TOYONAGA(THAILAND)CO.,LTD.

  • HEAD OFFICE

    Business:Accounting, Import/Export coordination and documentation, BOI submission
    Employees:11
    Address:91/962-4 Soi Ramindra 44, Ramindora Rd., Kannayao,
    Keith Kannayao, Bangkok 10230, Thailand
    Location:located about 20 kilometers North-northeast of Bangkok

  • SI-KHIU FACTORY

    Business:Molding Commutator, Assy Commutator, Metal stamping, Plastic Molding, Cutting, Assembly of Motor, Making mold and jig
    Employees:500
    Address:140/1 Mittaparb Rd., (Km.205) Tumbon Lardbuakau,
    Amper Si-Khiu Province, Nakhonratchasima 30340, Thailand
    Location:located about 200 kilometers away from Bangkok
    MAP
    SI-KHIU FACTORY

  • CHACHOENGSAO FACTORY

    Business:Cutting, Processing Mold Commutator, Making jig
    Employees:200
    Address:1/8 Moo 8 Suwintawong Rd, Tumbon Wangtakeian,
    Amper Meung Province, Chachoengsao 24000, Thailand
    Location:located about 70 kilometers away from Bangkok
    MAP
    CHACHOENGSAO FACTORY

  • PAKCHONG FACTORY

    Business:Inspection of Commutator, Secondary processing of plastic parts
    Employees:90
    Address: 473/1 Soi 1 Tedsaban 9 Rd., Tambon Pakchong,
    Amphur Pakchong, Nakhonratchasima 30130, Thailand
    Location:located about 170 kilometers away from Bangkok.

    PAKCHONG FACTORY

  • BUAYAI FACTORY

    Business:Assembly of Motor, Assy Commutator, Automobile parts, Soldering of the printed
    circuit board
    Employees:220
    Address: 2/38 Nonsamran Village, Nongkam Rd., Tombon Buayai
    Amper Buayai, Nakhonratchasima 30210, Thailand
    Location:located about 350 kilometers away from Bangkok

  • UDON THANI FACTORY

    Business:Assembly of Commutator
    Employees:100
    Address:276 Moo.1 Radchasuda Rd., Tambon Banjun,
    Amphur Muang, Udonthani 41000, Thailand
    Location:located about 550 kilometers away from Bangkok

    UDON THANI FACTORY

H&D PLUS CO.,LTD.

Business:Accounting, Import/Export coordination and documentation
Employees:6
Address:Room 1104,11/F.,Seaview Commercial Building, 21-24 Connaught Road West,Hong Kong.
MAP

PT.TOYONAGA INDONESIA

  • LIPPO CIKARANG FACTORY

    Business:Cutting, Plastic Molding, Assembly of metal parts
    Employees:30
    Address:Jl.Kayu Manis ①,Block F10-01E Kawasan Industri Delta Silicon 3,
    Lippo Cikarang, Bekasi 17550, Indonesia
    MAP
    PT.TOYONAGA INDONESIA Lippo Cikarang

ANGKOR PRECISION SYSTEM CO.,LTD.

Business:Assy Commutator
Employees:180
Address:Chhrey Village, Kandek Commune, Prasat Bakong District, Siem Reap
Province, Cambodia
MAP

TOYONAGA(MEKONG)CO.,LTD.

Business:Assembly of Motor, Assy Commutator, Slip Ring
Employees:170
Address:Lot TT, at Tan Huong IZ, Tan Huong Commune, Chau Thanh District
Tien Giang Province, Vietnam
TOYONAGA(MEKONG)CO.,LTD.

Company History

1950
Takayasu Toyonaga, the founder of the company, started manufacturing
Vacuum tube materials for broadcast receiver.
1957
Started R&D of Commutator for Micro Motor.
1959
Commutator developed and marketed.
1963
Established Toyonaga Denki Kenkyusho Inc.
1969
The company’s founder Takayasu Toyonaga passed away.
Shizu Toyonaga became President of the Company.
Established Toyonaga Denki Kenkyusyo Co., Ltd. (5 million yen in capital)
1975
Saitama Factory was established.
1978
Increased the capital up to 20 million yen.
1983
Saitama Factory was moved to 1559-6, Uetomi, Sanboucho, Iruma-gun, Saitama
Prefecture.
1985
Started manufacturing Slip Ring for Video Camera and Video editing equipment.
Production started at a subcontract factory in Taiwan.
1987
Production started at a subcontract factory in Korea.
1988
Established Toyonaga Electric Research Inc. in New York.
1989
Established Toyonaga (Hong Kong) Co., Ltd. in Hong Kong.
1990
Established Toyonaga (Thailand) Co., Ltd. in Bangkok.
Production started in Thailand.
1994
Si-Khiu Factory was established in Nakhonratchasima Province, Thailand.
Production started in Thailand.
Started manufacturing Components for Brushless Motor.
2000
Marked 50th Anniversary.
2002
Established Hoyu Electric (Tonkan) Co., Ltd. in Tonkan, China.
Production started in China.
2003
Chachoengsao Factory was established in Chachoengsao Province, Thailand.
Started manufacturing Parts for Automobile and Motorcycle in Thailand.
2005
Established PT. Toyonaga Indonesia in Indonesia.
Started marketing in Indonesia.
2006
Shizu Toyonaga became Chairman of the Company.
Seigo Toyonaga became President of the Company.
Increased the capital up to 80 million yen.
Indonesia Factory was established in Bekasi.
Started manufacturing Parts for Automobile and Motorcycle in Indonesia.
Udonthani Factory was established in Udonthani Province, Thailand.
Pakchong Factory was established in Nakhonratchasima Province, Thailand.
2008
Buayai Factory was established in Nakhonratchasima Province, Thailand.
Started Assembling Electrical Components in Thailand.
2011
Established Angkor Precision System in Siem Reap, Cambodia.
2012
Established Toyonaga (Mekong) Cco., Ltd. in Tien Giang Province, Vietnam.
Started Assembling Electrical Components in Vietnam.
Indonesia 2nd Factory was established in Lippo Cikarang.
2014
Chachoengsao 2nd Factory was established in Chachoengsao Province, Thailand.