Question: What company was Satoru Okada the general manager in Research & Engineering, of which is also one of the world's largest video game companies?
Context: Mitchell Corporation (株式会社ミッチェル) is a Japanese video game developer based in the Suginami ward of Tokyo.  Roy Ozaki serves as president, and Koichi Niida serves as vice-president.  Some employees are former Capcom and TAD Corporation employees.  The company was originally established on February 1, 1960, as an import/export business by the father of Roy Ozaki.  Ozaki and Niida took over the company and began acting as exclusive overseas agents for such video game companies as Visco, Video System, Seta, Metro, Home Data, and other small video game manufacturers in the 1980s. Gaia (株式会社ガイア , Kabushikigaisha Gaia ) was a video game developer formed by Kouji Okada (AKA 'Cozy' Okada) on October 31, 2003 after he departed from Atlus.  Okada was one of the co-creators of the "Shin Megami Tensei" role-playing game series. The Microvision is the first handheld game console that used interchangeable cartridges.  It was released by the Milton Bradley Company in November 1979 .  The Microvision was designed by Jay Smith, the engineer who would later design the Vectrex gaming console.  The Microvision's combination of portability and a cartridge-based system led to moderate success, with Smith Engineering grossing $15 million in the first year of the system's release.  However, very few cartridges, a small screen, and a lack of support from established home video game companies led to its demise in 1981 .  According to Satoru Okada, the former head of R&D1 Department stated that the Microvision gave birth to Nintendo Game & Watch after Nintendo designed around Microvision's limitations. Jim Lentz is the chief executive officer for Toyota North America; president and chief operating officer of Toyota Motor North America, Inc. (TMA); and a senior managing officer of the parent company Toyota Motor Corporation (TMC) which is located in Japan.  In that role Lentz manages all of Toyota’s North American affiliate companies which include TMA, Toyota Motor Sales, U.S.A., Inc. (TMS), and Toyota Motor Engineering & Manufacturing, North America, Inc. (TEMA), which includes responsibilities for Toyota Motor Manufacturing Canada Inc. (TMMC), and oversight for Toyota Canada, Inc. (TCI).  Lentz also serves as the chairman of the North American Executive Committee.  This is composed of the top leaders from the affiliate companies.  Most recently Lentz was the president and chief executive officer of TMS and senior vice president of TMA and served in a global advisory capacity as the managing officer for TMC.  Before that he served as president and chief operating officer and executive vice president of TMS.  Lentz previously held several executive positions including Toyota division group vice president and general manager where he oversaw all sales, logistics and marketing activities for Toyota and Scion regional sales offices and distributors.  He also served as the group vice president of marketing for the Toyota division and vice president of Scion, and was responsible for the initial launch of a new line of vehicles.  Lentz spent several years in the field as vice president and general manager of the Los Angeles region and before that general manager of the San Francisco region.  Prior to his role as general manager Lentz was vice president of marketing services for CAT in Maryland.  He has also held several other TMS positions, including field training manager, sales administration manager and truck sales team member.  Lentz joined Toyota in 1982 as the merchandising manager for its Portland, Oregon region where he later became the distribution manager and field operations manager.  He serves as chairman on the board of directors of The Global Automakers and is also a member of the executive advisory board for Daniels College of Business at the University of Denver (DU), his alma mater.  He was named “Marketer of the Year” by Advertising Age in 2006, an Automotive News “All Star” in 2007 and honored at Industry Leader of the year. Video gaming in France is one of the largest markets in Europe.  The French government give special tax breaks to video game companies.  In 2014, the French diplomatic service released a report which calculates the profit generated by the French video game industry at €2.7 billion.  It states that there are 300 video game companies in France.  It estimates the number of jobs directly related to the video game industry at 5000.  It estimates the number of indirect jobs created by the video game industry at 10,000.  The report found that in 2013, around 8 out of 10 people had played a video game in the last 12 months. Satoru Okada (岡田 智 "Okada Satoru") was the general manager of Nintendo Research & Engineering, the division designing and developing Nintendo handheld game consoles (such as the Game Boy Color, Game Boy Advance, Game Boy Advance SP, and Nintendo DS consoles).  He is best known for creating the original Game Boy.  He was also assistant producer and director of and contributor to several Nintendo games, notably "Metroid", released for the Nintendo Entertainment System in 1986. Nintendo Co., Ltd. is a Japanese multinational consumer electronics and video game company headquartered in Kyoto.  Nintendo is one of the world's largest video game companies by market capitalization, creating some of the best-known and top-selling video game franchises, such as "Mario", "The Legend of Zelda", and "Pokémon".  Founded on 23 September 1889 by Fusajiro Yamauchi, it originally produced handmade hanafuda playing cards. By 1963, the company had tried several small niche businesses, such as cab services and love hotels. Abandoning previous ventures in favor of toys in the 1960s, Nintendo then developed into a video game company in the 1970s, ultimately becoming one of the most influential in the industry and Japan's third most-valuable company with a market value of over $85 billion.  From 1992 until 2016, Nintendo was also the majority shareholder of Major League Baseball's Seattle Mariners. The Game Boy (Japanese: ゲームボーイ , Hepburn: Gēmu Bōi ) is an 8-bit handheld game console which was developed and manufactured by Nintendo and first released in Japan on  21, 1989 (1989--) , in North America on  31, 1989 (1989--) and in Europe on  28, 1990 (1990--) .  It is the first handheld console in the Game Boy line and was created and published by Satoru Okada and Nintendo Research & Development 1.  This same team, led by Gunpei Yokoi at the time, is credited with designing the Game & Watch series as well as several popular games for the Nintendo Entertainment System.  Redesigned versions were released in 1996 and 1998 in the form of Game Boy Pocket and Game Boy Light (Japan only), respectively. Brazil is the 13th largest video game market in the world as of 2017, and the largest in Latin America, with a revenue of 1,3 billion US dollars.  Video games were not permitted for import into Brazil until the 1990s, and were then heavily taxed as non-essential goods.  As a result, a black market developed around pirating games, driven by the lack of official channels for purchasing games.  Many game companies avoided expansion into the country for these reasons.  Blaming high tariffs, Nintendo officially left the market in 2015, but returned in 2017.  Sega once retained a strong foothold in the country.  In a series of videos, "Red Bull" explored the country's relation with gaming. The video game industry in the Czech Republic has produced numerous globally successful video games such as and the subsequent ArmA series, the Mafia series, Truck Simulator series, the Samorost series and others.  There were 300–400 video game developers and around 30 video game companies focusing on video game development in 2014.  In 2017 it was 1,100 developers and 47 companies.  Video games are also considered by some experts to be the country's biggest cultural export.  The video game industry did not enjoy a good reputation and was unsupported by the state until 2013, when the Ministry of Industry and Trade started to seek ways to kickstart the economy.  By 2014, programs were planned to support the video game industry.  Another problem is a lack of video game development specialization at any university.
Answer: Nintendo