
Company name
DAIYA SEIKI Co., Ltd.
Head office location
1-4-20 Osachi-Katamacho, Okaya City, Nagano Prefecture, 394-0084, Japan
Tel: +81(0) 266-27-7733 (Representative); Fax: +81(0) 266-26-1188Establishment
May 1, 1951
Capital stock
40 million yen
Board members
President and Representative Director: Yuji Oguchi
And 4 othersNumber of employees
160 (131 male, 29 female)
Average age: 44 years oldISO
ISO 9001 certification (November, 2000) Certificate No.: JQA-QMA15805
ISO 14001 CERTIFICATION (DECEMBER 2002) CERTIFICATE NUMBER: JQA-EM7428
ISO 13485 certification (March, 2019) Certificate No.: JQA-MD0128
Manufacture of parts for medical electron microscopes


Scope of application: headquarters plant, Co. Daiyac

Scope of application: headquarters plant.
Other certifications, etc.
Medical device manufacturing registration (July 5, 2019) Registration number: 20BZ200123
Class 3 Medical Device Manufacture and Sale License obtained (March 28, 2024)
License number: 20B3X10019Ongoing record of no occupational accidents (since May 1972)
Declaration of Support for Raising Children (Nagano Prefecture) registration (registered in December 2013)
Workplace Iki-Iki Advanced Company (Nagano Prefecture) certification (October 2017-)
Obtained certification as an excellent health management corporation (sponsored by the Ministry of Economy, Trade and Industry) (February 20, 2018-)
Excellent declaration corporation (since 1975)
Tokyo Branch
〒167-0041
10-2, Zempukuji 3-chome, Suginami-ku, Tokyo
China Plant
DAIYA Precision Machinery (Changshu) Co.
215500
No. 69, Fuchun River East Road, Changshu Southeast Economic Development Zone, Jiangsu Province
Changshu Jiaoyuan Place Industrial Parktel: 0512-5235-8781 fax: 0512-5235-8785
Attn: KUBOTA, General Manager / TAKIZAWA, Technical Manager
Korea Office
HANIL officetel #1423, Jaseong-ro 152 (Munhyeon-dong 815), Nam-gu, Busan, Korea
Tel: +82-10-6449-1186 Fax: +82-51-797-8622
Contact Person: Huang (Japanese is acceptable)
Affiliated company
DAIYAC Corporation
1-4-20 Osachi-Katamacho, Okaya City, Nagano Prefecture, 394-0084, Japan
TEL: +81(0) 266-28-8868 FAX: +81(0) 266-26-1186