Efforts to improve the quality

Certification of quality ISO9001/IATF16949

SII Crystal Technology sites obtained ISO9001 certificate which is an international quality standard and IAT16949 certificate which is specific to the automotive industry. Based on the quality management system, SII Crystal Technology is pursuing a development and production of the product which secured the high quality and high reliability with which a customer can be satisfied.


ISO9001 Certification

Type of Certification ISO9001:2015, JIS Q9001:2015
Awarded to Seiko Instruments Inc.
Registered site
SII Crystal Technology Inc. TOCHIGI FACTORY
Certified by
Bureau Veritas
Certificate No.
Original Approval Date
March 19, 1996
Date of expiration
March 16, 2026
Click here for ISO9001 certificate


IATF 16949 Certification

Type of Certification IATF 16949:2016
Awarded to SII Crystal Technology Inc.
Certified by Bureau Veritas
Certificate No. 391508
Original Approval Date March 30, 2013 (ISO/TS16949:2009)
Date of expiration March 13, 2027
Certification Click here for IATF 16949 certificate

・Print copies of the certifications are allowed to produce from the PDF files listed above, if the need arises. However, no alterations are permitted in any circumstances.
・Adequate care must be taken not to cause any misunderstanding about the scope of a certification and the awardee, when handling the certification.
・Print copies produced from the above PDF files must be properly discarded when the valid term of the certification expires.

Please see here for the status of ISO14001 certification.