ADVANTEST CORP

About ADVANTEST CORP

incorporated in December 1954 under the name Takeda Riken Industry Co., Ltd. as a limited liability, joint-stock company in Japan under the Commercial Code of Japan. At the time of incorporation, Takeda Riken’s primary business was the design,

Products and services

establish dealer relationships. These two milestones launched the Company’s long-term goal of becoming a global manufacturer of testing and measuring products. Takeda Riken has been listed on the Tokyo Stock Exchange since February 1983. Takeda

Business information sourced from SEC annual filing filed Jun 25, 2015. Business descriptions reflect the cited filing and may not describe subsequent changes.

Company identification is based on SEC registration information. Financial figures are sourced from SEC filings.

Company information

Registered name

ADVANTEST CORP

Ticker symbol

ATEYY

CIK

0001158838

Exchange

OTC

Industry

Semiconductors & Related Devices

SEC SIC code

3674

Fiscal year end (MMDD)

1231

Last SEC synchronization

Nov 7, 2026 18:38 UTC

Headquarters / business address

SHIN-MARUNOUCHI CENTER BUILDING
1-6-2 MARUNOUCHI,
CHIYODA-KU, TOKYO 100-0005, M0 00000

Mailing address

SHIN-MARUNOUCHI CENTER BUILDING
1-6-2 MARUNOUCHI,
CHIYODA-KU, TOKYO 100-0005, M0 00000

Business phone

81-3-3214-7500

Company contact information is drawn from SEC submissions, where reported, and may not reflect current operating locations. Last company information check: Nov 7, 2026 20:23 UTC. Official website, business descriptions and executive details require separate verification.