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Timeline of NTT Docomo

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| 1999 || February || Service || NTT MCN introduces its 2.5G i-mode, the first such service with national coverage.<ref name="The Six Immutable"/>
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| 1999 || August 8 || Growth || i-mode grows to 1 million subscribers.<ref name="The Six Immutable"/>
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| 1999 || December || Growth || i-mode grows to 3 million subscribers.<ref name="The Six Immutable"/>
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| 2000 || April || Renaming || Around its 15th anniversary, NTT Mobile Communications Network changes official name to {{w|NTT Docomo}}.<ref name="History"/><ref name="docomo-sys.co.jp"/>
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| 2000 || August 6 || Growth || Subscriptions for i-mode in Japan reaches 10 million.<ref name="sds"/>
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| 2000 || September || Facility || The {{w|NTT Docomo Yoyogi Building}} opens. One of the tallest buildings in {{w|Tokyo}}, it houses base station equipment and switching equipment.<ref>{{cite web |title=NTT DoCoMo Yoyogi Building |url=https://www.emporis.com/buildings/104939/ntt-docomo-yoyogi-building-tokyo-japan |website=emporis.com |accessdate=18 November 2019}}</ref>
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| 2000 || November 22 || Growth || Subscriptions for i-mode in Japan reaches 10 million.<ref name="sds"/><ref name="The Six Immutable"/>
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| 2000 || Late year || Growth || There are 50 million Personal Digital Cellular (PDC) subscribers in Japan.<ref name="The Six Immutable"/>
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| 2000 || December || Growth || i-mode grows to 15 million subscribers.<ref name="The Six Immutable"/>
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| 2000 || || {{w|License}} || The {{w|Japanese government}} awards {{w|3G}} licenses to {{w|NTT Docomo}}, {{w|KDDI}} and {{w|J-Phone}} at no charge. This allows NTT Docomo to free up its cash stock for overseas investment.<ref name="i-mode Wireless"/>
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| 2001 || || Recognition || {{w|NTT Docomo}} acquires ISO14001 accreditation<ref name="docomo-sys.co.jp"/>, the international standard that specifies requirements for an effective environmental management system.<ref>{{cite web |title=WHAT IS ISO 14001:2015 – ENVIRONMENTAL MANAGEMENT SYSTEMS? |url=https://asq.org/quality-resources/iso-14001 |website=asq.org |accessdate=16 October 2019}}</ref>
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| 2001 || March 4 || Growth || Subscriptions for i-mode in Japan reaches 20 million.<ref name="sds"/>
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| 2001 || May || Growth || i-mode grows to 23 million subscribers.<ref name="The Six Immutable"/>
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| 2001 || July 1 || Growth || Subscriptions for i-mode in Japan reaches 25 million.<ref name="sds"/>
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| 2001 || || Administration || {{w|NTT Docomo}} relocates the head office to {{w|Akasaka}} from {{w|Nishigotanda}}.<ref name="docomo-sys.co.jp"/>
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| 2001 || October || Service || {{w|NTT Docomo}} becomes the first cellular operator in the world to offer commercial {{w|3G}} services (based on {{w|WCDMA}}) called {{w|Freedom of Mobile Multimedia Access}} (FOMA). The service becomes first available in the {{w|Greater Tokyo Area}}, {{w|Yokohama}} and {{w|Kawasaki}}.<ref name="History"/><ref name="i-mode Wireless"/>
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| 2001 || December 25 || Growth || Subscriptions for i-mode in Japan reaches 30 million.<ref name="sds"/>
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| 2002 || || Personnel || {{w|NTT Docomo}} reaches 700 employees.<ref name="docomo-sys.co.jp"/>
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| 2002 || June 1 || Service || {{w|NTT Docomo}} launches its i-shot service, allowing subscribers to transmit still images taken with compatible mobile phones having built-in cameras to virtually any device capable of receiving {{w|e-mail}}.<ref name="dd"/>
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| 2001 || October 14 || Growth || Subscriptions for i-mode in Japan reaches 35 million.<ref name="sds"/>
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| 2003 || January 14 || {{w|Market penetration}} || {{w|NTT Docomo}} i-shot handsets (camera phone) sales exceed 5 million.<ref name="dd">{{cite web |title=DoCoMo Camera Phone Sales Exceed 5 Million |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/000928.html |website=nttdocomo.co.jp |accessdate=12 November 2019}}</ref>
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| 2003 || June 3 || Service || {{w|NTT Docomo}} announces a payments service to enable customers using {{w|2G}} and {{w|3G}} handsets to shop online at a dedicated portal site and receive bills for purchases together with their monthly mobile phone invoices.<ref>{{cite web |title=NTT DoCoMo to Start Trial of Online Payments Service |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/000975.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || June 30 || Product || {{w|NTT Docomo}} announces launch of the F2102V mobile videophone, the first model compatible with Docomo's new FirstPass SSL client authentication service.<ref>{{cite web |title=NTT DoCoMo to Launch FOMA F2102V Videophone |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/000983.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || || Administration || {{w|NTT Docomo}} establishes ERP Division and Technical Center.<ref name="docomo-sys.co.jp"/>
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| 2003 || September || Growth || After achieving a peak of more than 62 million subscribers for PDC services in Japan, the Japanese mobile market embraces next-generation technologies based on CDMA technology.<ref name="The Six Immutable"/>
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| 2003 || October 30 || || Total subscribers to {{w|2G}} and {{w|3G}} {{w|i-mode}} mobile internet service in Japan surpass 40 million.<ref name="sds">{{cite web |title=i-mode Subscribers Surpass 40 million |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/001115.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || October 31 || || {{w|NTT Docomo}} announce development of the first {{w|FOMA}} compact flash card, P2402, which enables {{w|3G}} videophone and other wireless data communication via PCs and [[w:Personal digital assistant|PDA]]s, such as Docomo's sigmarion III.<ref>{{cite web |title=NTT DoCoMo Develops FOMA Compact Flash Card |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/001116.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || November 10 || Product || {{w|NTT Docomo}} announces the release of the mova P505iS, the world's first camera phone equipped with auto focus.<ref>{{cite web |title=NTT DoCoMo to Introduce P505iS: World's First Auto-Focus Camera Phone |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/001119.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || December 9 || Product || {{w|NTT Docomo}} announces the release of three handsets in the {{w|2G}} mova 505iS series: "the SO505iS, a mega-pixel camera phone equipped to play extended-length video files; the N505iS, the first NEC-made camera phone in the mova lineup with 1.3 mega-pixel resolution; and the SH505iS, which comes with a 2.02 mega-pixel, auto-focus camera."<ref>{{cite web |title=NTT DoCoMo to Launch Three New Models in mova 505iS Series |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/001126.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2003 || December 18 || || {{w|NTT Docomo}} announces liquidation of NTT Docomo Telecomunicações do Brasil Limitada, a wholly owned subsidiary of Docomo.<ref>{{cite web |title=NTT DoCoMo to Liquidate a Brazilian Subsidiary |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2003/001132.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2004 || January 9 || Service || {{w|NTT Docomo}} announces the launch of an i-mode Disaster Message Board service allowing i-mode subscribers in Japan to post personal messages at a special i-mode site (provided in Japanese only) in the event of major calamities such as high-magnitude {{w|earthquake}}s.<ref>{{cite web |title=NTT DoCoMo to Launch i-mode Disaster Message Board Service |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001135.html |website=nttdocomo.co.jp |accessdate=12 November 2019}}</ref>
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| 2004 || January 29 || {{w|Subsidiary}} || {{w|NTT Docomo}} announces the decision to liquidate its subsidiary, Mobimagic Co., an application service provider for medium and small-sized companies.<ref>{{cite web |title=NTT DoCoMo to Liquidate a Subsidiary |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001137.html |website=nttdocomo.co.jp |accessdate=12 November 2019}}</ref>
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| 2004 || January 29 || Growth ({{w|3G}} [[w:Freedom of Mobile Multimedia Access|FOMA]] service) || {{w|NTT Docomo}} announces that subscribers to the {{w|3G}} [[w:Freedom of Mobile Multimedia Access|FOMA]] service surpassed two million, two years and four months after the service was launched.<ref>{{cite web |title=NTT DoCoMo FOMA Subscribers Top 2 Million |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001139.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2004 || February 26 || Product || {{w|NTT Docomo}} announces release of the P900i, the third handset in the new {{w|3G}} [[w:Freedom of Mobile Multimedia Access|FOMA]] 900i series.<ref>{{cite web |title=NTT DoCoMo to Release P900i - Third Handset in FOMA 900i Series |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001146.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2004 || March 24 || {{w|Subsidiary}} || {{w|NTT Docomo}} announces the decision to liquidate DCM Capital LDN ({{w|United Kingdom}}) Limited, DCM Capital HKG (UK) Limited and DCM Capital 3G HKG (UK) Limited, each of which is a wholly owned subsidiary of DoCoMo.<ref>{{cite web |title=NTT DoCoMo to Liquidate Some of its Subsidiaries |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001157.html |website=nttdocomo.co.jp |accessdate=18 November 2019}}</ref>
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| 2004 || March 31 || Growth ({{w|3G}} [[w:Freedom of Mobile Multimedia Access|FOMA]] service) || {{w|NTT Docomo}} announces that subscribers to the {{w|3G}} [[w:Freedom of Mobile Multimedia Access|FOMA]] service surpassed the three million mark.<ref>{{cite web |title=NTT DoCoMo FOMA Subscribers Top 3 Million |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001162.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2004 || April 1 || Research || {{w|NTT Docomo}} establishes its Mobile Society Research Institute, which would study the social impact of mobile phone use.<ref>{{cite web |title=NTT DoCoMo to Establish "Mobile Society Research Institute" |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001163.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2004 || April || Product || {{w|NTT Docomo}} launches mova 506i series of three PDC (2G) i-mode mobile phones, a series of handsets featuring cameras with effective resolutions of more than one million pixels.<ref>{{cite web |title=NTT DoCoMo Unveils New mova 506i i-mode Phone Series |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001166.html |website=nttdocomo.co.jp |accessdate=12 November 2019}}</ref>
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| 2004 || April 28 || Service || {{w|NTT Docomo}} announces launch an international roaming-in service to enable mobile subscribers of Docomo's 21 international partners in 19 countries and territories to use the company's {{w|3G}} [[W:Freedom of Mobile Multimedia Access|FOMA]] network while in Japan.<ref>{{cite web |title=NTT DoCoMo to Launch 3G Roaming-In Service for Visitors to Japan |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001169.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref> |-| 2004 || || Administration || {{w|NTT Docomo}} establishes a Mobile Network Division and a Security Services Division.<ref name="docomo-sys.co.jp"/>
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| 2004 || December || Product || {{w|NTT Docomo}} launches the F901iC 3G FOMA handset, the latest model in the 901i series.<ref>{{cite web |title=NTT DoCoMo to Launch F901iC 3G FOMA Handset |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001233.html |website=nttdocomo.co.jp |accessdate=12 November 2019}}</ref>
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| 2004 || December 16 || Product || {{w|NTT Docomo}} introduces the N900iG, the first [[w:Freedom of Mobile Multimedia Access|FOMA]] {{w|3G}} handset for fully functional mobile communications in approximately 115 countries/regions.<ref>{{cite web |title=NTT DoCoMo Introduces First FOMA 3G Handset for International Roaming |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2004/001229.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref> |-| 2005 || November 24 || Product || {{w|NTT Docomo}} announces launch of the [[w:Freedom of Mobile Multimedia Access|FOMA ]] SA800i, a child-friendly 3G mobile phone.<ref>{{cite web |title=NTT DoCoMo Develops Child-Friendly Handset |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2005/000701.html |website=nttdocomo.co.jp |accessdate=18 November 2019}}</ref>
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| 2005 || December || Product || {{w|NTT Docomo}} launches iD credit brand.<ref name="History"/>
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| 2019 || September 2 || Technology || {{w|NTT Docomo}} announces having joined the 5G Alliance for Connected Industries and Automation (5G-ACIA) "with the aim of further advancing the use of 5G technology in the manufacturing sector".<ref>{{cite web |title=DOCOMO Joins 5G Alliance for Connected Industries and Automation |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2019/0902_00.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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| 2019 || September 10 || Partnership || {{w|NTT Docomo}} announces agreement with {{w|Omron}} and {{w|Nokia Networks}} to collaborate in trials of 5G mobile communication technology inside factories, "with the aim of significantly enhancing future manufacturing productivity". <ref>{{cite web |title=DOCOMO to Commence 5G Trials at Manufacturing Sites in Partnership with OMRON and Nokia |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2019/0910_00.html |website=nttdocomo.co.jp |accessdate=24 January 2020}}</ref>
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| 2019 || September 30 || Technology || {{w|NTT Docomo}} announces achievement of the world's first 28 GHz-band {{w|5G}} mobile communications between base stations and a high-speed bullet train during experimental trials to verify further enhancement of 5G in collaboration with Central [[w:Japan Railways Group|Japan Railway Company]].<ref>{{cite web |title=DOCOMO Achieves World's First 5G Communication Between High-speed Bullet Train and Experimental Base Stations |url=https://www.nttdocomo.co.jp/english/info/media_center/pr/2019/0930_00.html |website=nttdocomo.co.jp |accessdate=19 January 2020}}</ref>
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