Question: Sony Xperia T, is an Android smartphone manufactured by which multinational telecommunications company founded on October 1, 2001 as a joint venture between Sony and Ericsson, headquartered in Tokyo, Japan?

Context paragraphs:
Sony Xperia Z5 Compact: The Sony Xperia Z5 Compact is an Android smartphone produced by Sony.  Part of the Sony Xperia Z series, the device, at that point known by the project code name "Suzuran", was unveiled along with the Xperia Z5 and Xperia Z5 Premium during a press conference at IFA 2015 on September 2, 2015.  The device was first launched in Taiwan on October 1, 2015 and in Japan on November 12, 2015.  It is the successor of the Sony Xperia Z3 Compact.

Sony Xperia X Performance: The Sony Xperia X Performance is an Android smartphone produced by Sony.  Part of the Sony Xperia X series, the device was unveiled along with the Sony Xperia XA and Sony Xperia X at MWC 2016 on February 22, 2016.  It is Sony's flagship smartphone for the first half of 2016.

Sony Xperia X: The Sony Xperia X is an Android smartphone produced by Sony.  Part of the Sony Xperia X series, the device was unveiled along with the Sony Xperia XA and Sony Xperia X Performance at MWC 2016 on February 22, 2016.  The Sony Xperia X series will replace the former Sony Xperia Z series, as confirmed by Sony Mobile's senior product marketing manager Jun Makino in February 2016.

Sony Xperia Z2: The Sony Xperia Z2 is an Android smartphone manufactured by Sony and released in April 2014.  Under the codename "Sirius", Xperia Z2 serves as the successor to the Sony Xperia Z1.  Like its predecessor, the Xperia Z2 is water and dust proof with an IP rating of IP55 and IP58.  The phone features a new IPS LED display, a Snapdragon 801 processor and the ability to record 4K videos.  The Xperia Z2 also allows removable microSD storage up to 128 GB.

Sony Xperia M2: The Sony Xperia M2 is a mid-range 4G LTE Android smartphone manufactured by Sony which was unveiled on 24 February 2014 at the Mobile World Congress, Barcelona, Spain.  It boasts of Sony's new Lifelog app, launched alongside the Sony Xperia Z2 and Sony Xperia Z2 Tablet.  The Xperia M2 succeeds the Sony Xperia M with a faster processor and an improved camera.

Sony Xperia T: Sony Xperia T (renamed Sony Xperia TL in the United States) is an Android smartphone manufactured by Sony Mobile.

Sony Xperia E4: Sony Xperia E4 is an Android based smartphone manufactured by Sony Mobile Communications.  It is a budget oriented mid-range device with 5" qHD IPS display, a 5 megapixel camera and a 2MP front camera with automatic scene recognition.  Like other Sony phones, the E4 has its own OmniBalance dual-layered design.  The outermost layer has its own body and the glass screen part has its own division which is enclosed by the outermost layer.  The Sony Xperia E4 is a mid range Android smartphone designed and manufactured by Sony.  It was announced in February 2015.  The Xperia E4 has a dual SIM variant named the Xperia E4 Dual and the Xperia E4 has a kind of LTE Successor which is the Sony Xperia E4g.

Sony Xperia XZ1 Compact: The Sony Xperia XZ1 Compact is a compact flagship Android smartphone manufactured and marketed by Sony.  The phone was announced to the public along with the Sony Xperia XZ1 at a press conference which was held at IFA 2017 on August 31, 2017.  It is the successor to the Sony Xperia X Compact and the first flagship-grade compact smartphone from Sony since the Sony Xperia Z5 Compact.

Sony Mobile: Sony Mobile Communications Inc. is a multinational telecommunications company founded on October 1, 2001 as a joint venture between Sony and Ericsson, headquartered in Tokyo, Japan and wholly owned by Sony.  It was originally incorporated as Sony Ericsson, until Sony acquired Ericsson's share in the venture on February 16, 2012.

Sony Xperia XZ1: The Sony Xperia XZ1 is a flagship Android smartphone manufactured and marketed by Sony.  The phone was announced to the public along with the Sony Xperia XZ1 Compact at a press conferences which was held at IFA 2017 on August 31, 2017.  It is the successor to the Sony Xperia XZs.

Supporting paragraphs: Sony Xperia T Sony Mobile
Answer: Sony Mobile Communications Inc.