Question: Who is the founder of the company which  in a joint venture with Blackstorm Labs built the RGames HTML5 gaming platform?

Context paragraphs:
Canadian Intermountain Joint Venture: The Canadian Intermountain Joint Venture (CIJV) is a partnership of "government agencies, Aboriginal groups, nongovernmental organizations, industry, universities and landowners" for the implementation of the North American Waterfowl Management Plan in the inter-mountain areas of south and central British Columbia in Canada, and the south-western mountain region of Alberta.  Its region of operation includes "all the mountain national parks", with boundaries delineated by the border with the United States to the south, the eastern crest of the Rocky Mountains to the east, the crest of the Coast Mountains to the west, and the boreal forest to the north.  It is adjacent to the Intermountain West Joint Venture to the south, the Pacific Coast Joint Venture to the west, and the Prairie Habitat Joint Venture to the east.

Tiwest Joint Venture: The Tiwest Joint Venture was a joint venture between Tronox Western Australia Pty Ltd and subsidiaries of Exxaro Australia Sands Pty Ltd.  The Tiwest Joint Venture was a mining and processing company, established in 1988, to extract ilmenite, rutile, leucoxene and zircon from a mineral sands deposit at Cooljarloo, 14 km north of Cataby, Western Australia.  As of June 2012, the joint venture was formally dissolved, when Tronox acquired the mineral-sands-related divisions of Exxaro outright.

Miller Brewing Company: The Miller Brewing Company is an American beer brewing company headquartered in Milwaukee, Wisconsin, that was owned until October 11, 2016 by the MillerCoors division of the MillerCoors–Molson Coors joint venture.  The company has brewing facilities in Albany, Georgia; Chippewa Falls, Wisconsin; Fort Worth, Texas; Irwindale, California; Milwaukee, Wisconsin; and Trenton, Ohio.  On July 1, 2008, Miller formed MillerCoors, a joint venture with rival Molson Coors to consolidate the production and distribution of its products in the United States, with each parent company's corporate operations and international operations to remain separate and independent of the joint venture.

Rakuten: Rakuten, Inc. (楽天株式会社 , Rakuten Kabushiki-gaisha ) is a Japanese electronic commerce and Internet company based in Tokyo and founded in 1997 by Hiroshi Mikitani.  Its B2B2C e-commerce platform Rakuten Ichiba is the largest e-commerce site in Japan and among the world’s largest by sales.  The company operates Japan's biggest Internet bank and third-largest credit card company (by transaction value).  It also offers e-commerce, fintech, digital content and communications services to over 1 billion members around the world, and operates in 29 countries and regions.  It is often referred to as "the Amazon of Japan."

Azolt: Azolt is a privately held consumer electronics brand owned by Chonyi International (HK) Co., Limited and headquartered in Shenzhen, China.  It manufactures smart devices for gaming platform such as gaming keyboards, mouses and other computer peripherals.  Currently, its homepage provides an online web based gaming platform.

EverWing: EverWing is a game created by Blackstorm Labs and released on the Instant Games platform in Facebook Messenger in November 2016.

Blackstorm Labs: Blackstorm Labs is a Silicon Valley-based technology company which builds post-app store technology.  The company was founded in 2016 by Michael Carter, Ernestine Fu, Tom Fairfield, and Martin Hunt, and has since raised $33.5m in venture capital funding.  Blackstorm is a partner with Rakuten in a joint venture, Rakuten Games, which has built the RGames HTML5 gaming platform.  Blackstorm's in-house gaming studio, Blackstorm Games, is responsible for creating the game EverWing on Facebook's Instant Games platform, which was named a 2016 Facebook Game of the Year.

Gbanga: Gbanga is a mixed reality, social gaming platform for mobile phones developed by Zurich-based startup, Millform AG.  The platform runs on real-time locative media, developed in-house, which means that the gaming environment changes relative to the players real-world location.  Players can interact with each other using built-in social and chat functions, which indicate their current real-world locations as well as online and offline status.  Additional features enable social gaming in forms such as exploring, collecting and trading.

Michael Carter (entrepreneur): Michael Carter is an American technology entrepreneur best known as the co-founder of Blackstorm Labs, a company focused on building post-app store technology.  Blackstorm created the game HTML5-based game EverWing, available on Facebook's Instant Games platform.  Carter also sits on the Board of Directors of Rakuten Games, the Tokyo-based creator of the RGames platform.

Joint venture broker: Joint venture brokers are people who connect business joint venture partners together for profit making projects.  The joint venture brokers will earn a pre-negotiated percentage of the profits earned from the joint venture that they helped put together.

Supporting paragraphs: Blackstorm Labs Rakuten
Answer: Hiroshi Mikitani