Brief history of YCC

1925(Taisho 14) Toshiyasu Kato founded a company (beginning status of Yamaju Ceramics) as porcelain exporting company in Seto-city
1935(Showa 10) At Owariasahi-city, Toshiyasu Kato established new factory of porcelain which had integrated porcelain production line and expanded the business area toward southeast Asia
1938(Showa 13) Toshiyasu Kato re-organized the company (old status of Yamaju Ceramics) to be a limited partnership
1942(Showa 17) Produced Acid-resistance bottles as an appointed factory by Japanese Army government for the demand of World War 2 (Pacific Theater)
1948(Showa 23) Re-started the production of Porcelain & Pottery for consumer market as commercial trading was allowed to resume
1952(Showa 27) Getting a head start on Porcelain & Pottery market as introducing the "Heavy oil fired tunnel kiln"
1958(Showa 33) Shifting the most production into "Semi-Porcelain-Pottery" dinner set.
Main sales area changed to U.S.A. Canada, and Australia
1967(Showa 42) The founder Toshiyasu Kato passed away in hurry. Hisao Kato was inaugurated as the representative of company
1969(Showa 44) Prepared the mass productive factory of porcelain & pottery by rationalizing lines throughout
1970(Showa 45) Visited Science & Technical Research Laboratories (NHK STRL) to be advised about new possibilities for innovative business
1971(Showa 46) Decided to enter the business of oxide single crystal
1972(Showa 47) R&D activities for YAG single crystal for Laser oscillation under the guidance of Tohoku University
1973(Showa 48) Incorporated to be "Yamaju Ceramics Co., Ltd" (in the capital amount JPY 10,000,000)
Hisao Kato inaugurated as the President
1974(Showa 49) Single crystal laboratory was moved to Seto-city. Then, operation started as Crystal division Seto Factory Merger with Limited Partnership "Yamaju Shouten"
1976(Showa 51) Mass production of Lithium Niobate single crystal wafers for IF filters of TV & VTR had started
1982(Showa 57) Mass production of Lithium Tantalate single crystal wafers for IF filters of TV & VTR had started
1983(Showa 58) Made big investment into Seto Factory for capacity increase
1985(Showa 60) SBIC (Nagoya Small and Medium Business Investment & Consultation) participated capital investment to Yamaju Ceramics
1987(Showa 62) Invested to porcelain & pottery production for effective rationalization against Plaza Accord
1988(Showa 63) R&D activities for "doped single crystals*" started as new project
* Adding the other elements into Lithium Niobate for further possibilities of various applications
1991(Heisei 3) Due to serious arise of Yen currency, we were forced to retire from porcelain dinner ware export production
1998(Heisei 10) Expanded the production facilities significantly due to rapid demand of Lithium Tantalate for radio frequency filter of mobile phone
1999(Heisei 11) Michiya Kato inaugurated as the President
2000(Heisei 12) Increased floor space of Seto Factory
2003(Heisei 15) Acquired ISO9001
2006(Heisei 18) Acquired ISO14001
Commercialization of Black-Yellow-LT for SAW filters
2008(Heisei 20) Take a patent for Black-Yellow-LT
2010(Heisei 22) Developed Single Crystal (Sapphire) for LED, SOS, Base substrate for high precision hybrid wafer applications
2011(Heisei 23) Ietaka Sahashi inaugurated as the President
2012(Heisei 24) Centrair R&D Center and Factory was built in Tokoname-City
Began full-scale mass production of large diameter 6 inch LT single crystal
2015(Heisei 27) Expanded Centrair R&D Center and Factory and Seto Factory, and production facilities had installed significantly
2019(Heisei 31) The new building of Headquarters and Factory was completed