Short answers, pulled from the story.
Masaya Nakamura founded Namco on the 1st of June 1955 in Ikegami, Tokyo, under the original name Nakamura Seisakusho. Nakamura started the business with 300,000 yen spent on two hand-cranked rocking horses installed on the roof of a Matsuya department store in Yokohama.
Atari co-founder Nolan Bushnell sold the struggling Atari Japan division to Nakamura after Sega and Taito both declined the offer. Nakamura agreed to pay 296 million yen but could not meet the deadline, so Bushnell accepted 550,000 dollars upfront and 250,000 dollars a year for three years. The acquisition was completed in 1974.
Toru Iwatani designed Pac-Man, which was originally called Puck Man. It was test-marketed in Japan on the 22nd of May 1980 and released in North America under the name Pac-Man in November 1980. Pac-Man sold over 300,000 arcade units and grossed over one billion dollars in quarters globally.
Namco became the PlayStation's first third-party developer in 1994, contributing Ridge Racer as a launch title when the console released in Japan on the 3rd of December 1994. Tekken, also from Namco, became the first PlayStation game to sell one million copies. Sony acknowledged the partnership with early promotional material carrying the tagline "PlayStation: Powered by Namco."
Namco pursued the merger with Bandai primarily because of severe financial difficulties, including a projected net loss of 6.5 billion yen for the fiscal year ending March 2001 and a near 95% drop in revenue. Bandai acquired Namco for 175.3 billion yen, finalized on the 29th of September 2005, creating Namco Bandai Holdings as the third-largest Japanese game company by combined revenue.
Wonder Eggs was an amusement park Namco opened in February 1992 in the Futakotamagawa Time Spark area of Setagaya, Tokyo. It was the first amusement park operated by a video game company and drew over one million visitors in its first year of operation. Namco closed Wonder Eggs on the 31st of December 2000, by which point it had hosted six million total visitors.