TEW TOKYO DENPA CO., LTD. | Company Information

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TEW was founded in 1934, and started production of quartz crystal units. In 1977, TEW started production of synthetic quartz crystals by our own technology. In 1994, TEW developed a platinum autoclave and established mass production technology for dislocation-free synthetic quartz crystals. TEW, as a specialist in quartz crystals, has been providing the crystal products with superior quality and added value based on high-quality quartz crystals and unique process technology. TEW contributes to the society by developing and providing crystal products and electronics equipment and ZnO.

Company Name

Tokyo Denpa Co., Ltd. (TEW)

Commencement

1934, May (As Tokyo Denpa Laboratory)

Establishment

1949, May (As Tokyo Denpa Co.,Ltd.)

Capital

3,703,600,000 (Japanese Yen)

Stock Listing

The First Section of the Tokyo Stock Exchange

Representative

Kazunori Hashiguchi

Number of Employees

TEW 164, (TEW Group 677)

Board Member

President	Kazunori Hashiguchi
Senior Managing Director	Takao Ono
Director	Tadao Yamada
Director	Yoshitaka Takei
Director	Yasushi Saitoh
Director	Atsushi Inoue
Auditor (Regular member)	Tadao Yonemaru
Auditor (Non-regular)	Tetsuzou Yoshihama
Auditor (Non-regular)	Tousuke Morita
Corporate Officer	Masakazu Ishizuka
Corporate Officer	Kiyoaki Tanida

Accounting Auditor

Deloitte Touche Tohmatsu LLC

[ Products ]

Crystal Product

Synthetic Quartz Crystal
Crystal Blanks & Wafer
Crystal Units
Crystal Oscillators
Crystal Filters
Optical Devices

Electronic Measuring Equipment

Radio Equipment and Component
High Frequency Power Meter
Quartz Thermometer
Electronics Measuring Apparatus
Crystal Related Measuring Equipment

New Materials

ZnO (Zinc Oxide) Substrates

[ History ]

1934	Commencement of business operations. Production of quartz crystal units.
1940	Production of radio communications equipment in a designated plant of the naval technical research center.
1953	Development of crystal impedance meter for mass production of quartz crystal units.
1964	Development and mass production of quartz crystal units for color television sets in anticipation of consumer demand.
1968	Planning of production of space communication equipment.
1977	Independent production of synthetic quartz crystal in response to the growing demand for quartz crystal units for transceivers. Research on quartz crystal temperature sensor under the sponsorship of the Ministry of International Trade and Industry.
1981	Development of quartz crystal temperature and pressure sensors and production of application equipment.
1987	Mass production of temperature-controlled quartz crystal oscillators for cordless and cellular telephones, and crystal oscillators facsimile machines in response to the growing popularity of telephones and facsimile machines.
1990	Entrusted with the development of a wireless cryogenic wide-range temperature control system for research on super conductive material by New Technology Association.
1994	Expansion of the Bihoro Plant at Kitami Tokyo Denpa for production of miniature high-precision quartz crystal units in response to the rapidly growing mobile communications market.
1995	Establishment of Kuji Plant at Morioka Tokyo Denpa, and mass production of temperature-controlled quartz crystal units for PHS(Personal Handy phone System) mobile telephones.
1996	Development of Langasite, and production of Langasite filters for compact, high-frequency brand mobile communication devices.
1997	Listed on the second section of the Tokyo Stock Exchange.
2000	Certification of ISO9001
2001	Listed on the first section of the Tokyo Stock Exchange.
2002	Establishment of Ichinohe Plant at Morioka Tokyo Denpa. Establishment of TEW-America as a Sales and Technical support for North America.
2003	Start production of crystal substrate for liquid crystal projector.
2009	Bussiness & Capital partnership with Murata Manufucturing Co.,Ltd.
2010	Head Office is movieng to a new location (Omori-Nishi, Ota-ku Tokyo)

TEW TOKYO DENPA CO.,LTD.