Question: Where was the Japanese multinational conglomerate with which HP Pavilion competes headquartered?

Context articles: HP Pavilion (computer)
HP Pavilion x360
Sony
HP Pavilion dv7
HP Pavilion dv4
QuickPlay
Hitachi
HP Pavilion dv5
HP Pavilion dv 1040
Toshiba

HP Pavilion is a line of personal computers produced by Hewlett-Packard and introduced in 1995.
 The name is applied to both desktops and laptops for the Home and Home Office product range.
 The Pavilion mainly competes against computers such as Acer's Aspire, Dell's Inspiron and XPS, Lenovo's IdeaPad and Toshiba's Satellite.
The Pavilion X360 is a computer tablet hybrid by Hewlett-Packard.
 First announced by HP at the Mobile World Congress.
 The HP Pavilion x360 competes with Acer Aspire R 11,
Sony Corporation (ソニー株式会社 , Sonī Kabushiki Kaisha ) (often referred to simply as Sony) is a Japanese multinational conglomerate corporation headquartered in Kōnan, Minato, Tokyo.
 Its diversified business includes consumer and professional electronics, gaming, entertainment and financial services.
 The company is one of the leading manufacturers of electronic products for the consumer and professional markets.
 Sony was ranked 113th on the 2016 list of Fortune Global 500.
The HP Pavilion dv7 was a model series of laptop/mobile Pavilion branded computers manufactured by Hewlett-Packard from 2008 that featured a 17.3" diagonal display.
 The HP Pavilion dv4 featured a 14.1" and the HP Pavilion dv5 a 15.4" display.
 The DV7 had bays for two hard drives, but was supplied with one; if a second hard drive was fitted then a hard drive hardware kit of bracket, connector cable, Mylar shield, and screws was required.
The HP Pavilion dv4 is a model series of laptop/mobile computers manufactured by Hewlett-Packard Company that features a 14.1" diagonal display.
 The HP Pavilion dv5 features a 15.4" and the HP Pavilion dv7 a 17" display.
QuickPlay is a technology pioneered by Hewlett-Packard that allows users to directly play multimedia without booting a computer to the main operating system.
 QuickPlay software, known as QuickPlay or HP QuickPlay is software custom developed for HP by CyberLink Corp.
 A media component of HP Pavilion Entertainment laptops, QuickPlay is a feature of the dv1000 series and above, including the new Pavilion HDX series of notebooks.
 QuickPlay is also a feature of many other HP Compaq notebooks.
 The technology has been emulated by other computer manufacturers such as Dell, Alienware, and Toshiba in various iterations.
Hitachi, Ltd. (株式会社日立製作所 , Kabushiki-gaisha Hitachi Seisakusho ) (] ) is a Japanese multinational conglomerate company headquartered in Chiyoda, Tokyo, Japan.
 It is the parent company of the Hitachi Group ("Hitachi Gurūpu") and forms part of the DKB Group of companies.
 Hitachi is a highly diversified company that operates eleven business segments: Information & Telecommunication Systems, Social Infrastructure, High Functional Materials & Components, Financial Services, Power Systems, Electronic Systems & Equipment, Automotive Systems, Railway & Urban Systems, Digital Media & Consumer Products, Construction Machinery and Other Components & Systems.
The HP Pavilion dv5 was a model series of laptop/mobile computers manufactured by Hewlett-Packard Company that features a 15.4" diagonal display.
 The HP Pavilion dv4 features a 14.1" and the HP Pavilion dv7 a 17" display.
 The dv5 series has been discontinued, being partially replaced by the dv6 (16") series, and released again as a 14.5" model in 2010.
The HP Pavilion DV 1040 is a laptop computer manufactured by HP in the HP Pavilion range.
Toshiba Corporation (株式会社東芝 , Kabushiki-gaisha Tōshiba ) , commonly known as Toshiba and stylized as TOSHIBA, is a Japanese multinational conglomerate headquartered in Tokyo, Japan.
 Its diversified products and services include information technology and communications equipment and systems, electronic components and materials, power systems, industrial and social infrastructure systems, consumer electronics, household appliances, medical equipment, office equipment, as well as lighting and logistics.