au (エーユー; pronounced Ē-yū) , or au/kddi (au by KDDI) , is a mobile phone brand in Japan marketed by KDDI Corporation in the main islands of Japan and Okinawa Cellular in Okinawa. Its name is based on the Japanese verbs for "meet" (会う) and "unite" (合う) (both pronounced au). KDDI Corporation (TYO: 9433) is a Japanese telecommunication operator formed in October 2000 through the merger of DDI, KDD, and IDO Corp. ... This article is about the prefecture. ...

History

The network that would eventually become au was originally set up as a Motorola-designed car phone network by Toyota Motor Corporation and Kyocera Corporation starting in 1985. Toyota was responsible for the network around Tokyo and Nagoya, while Kyocera was responsible for the network elsewhere in Japan. Kyocera established independent phone companies in each of its service areas between 1989 and 1992 and formed DDI Cellular group, while Toyota's part of the network became a separate company, Nihon Ido Tsushin (IDO), in 1987. Motorola NYSE: MOT (TYO: 6686) is a global communications company based in Schaumburg, Illinois, a Chicago suburb. ... Toyota Motor Corporation (in Japanese: トヨタ自動車株式会社; Toyota Jidōsha Kabushikigaisha; TYO: 7203. ... Kyocera Corporation (京セラ, Kyō-Sera, also known as Kyoto Ceramics) TYO: 6971, (NYSE: KYO) is a Japanese company based in Kyoto, Japan. ... This article is about the year. ... Long a symbol of Tokyo, the Nijubashi Bridge at the Kokyo Imperial Palace. ... Nagoya Castle in June of 2004. ...

au K.K. (株式会社エーユー) was established in November of 2000 by the Kyocera companies as part of the DDI Cellular network. In 2001, the company was merged into KDDI (which had been formed in 2000 by the merger of DDI, KDD, and IDO), but its brand name was retained and applied to all mobile phone service under KDDI. Data mining, also known as knowledge-discovery in databases (KDD), is the practice of automatically searching large stores of data for patterns. ...

au established a nationwide 3G network in 2003, replacing its previous cdmaOne service with CDMA 1x service. 3G (or 3-G) is short for third-generation mobile telephone technology. ... 2003 (MMIII) is a common year starting on Wednesday of the Gregorian calendar. ... Interim Standard 95 (IS-95), is the first CDMA-based digital cellular standard pioneered by Qualcomm. ...

Handsets

• Casio G'zOne Type-R
• Kyocera A101K "Kantan Keitai S"
• Sony Ericsson A1402S
• Kyocera A1403K
• Sony Ericsson A1404S
• Sanyo A5505SA
• Sanyo A5507SA
• Toshiba A5509T
• Toshiba A5511T
• Casio A5512CA
• Sanyo A5514SA
• Toshiba A5516T
• Casio W21CA
• Kyocera W21K
• Toshiba W21T
• Sanyo W22SA
• Casio W31CA
• Kyocera W31K
• Sony Ericsson W31S
• Sanyo W31SA
• Toshiba W31T
• Kyocera W32K "Kantan Keitai"
• Hitachi W32H
• Sony Ericsson W32S
• Sanyo W32SA
• Penck
• Sanyo Sweets
• Talby

See also

• KDDI

KDDI Corporation is a Japanese telecommunication operator formed in October 2000 through the merger of DDI, KDD, and IDO Corp. ...

External links

• au by KDDI