Question: What is the birth year of this Dutch video game designer and entrepreneur, who owns The Tetris Company with Alexey Pajitnov?

Context articles: The Tetris Company
Knight Moves (video game)
Henk Rogers
Hexic
Tetris (Game Boy)
Tetris
WildSnake
Tetris Online, Inc.
Pandora's Box (1999 video game)
Tetris (Atari)

The Tetris Company, LLC (TTC) is based in Hawaii and is owned by Henk Rogers and Alexey Pajitnov.
 The company is the exclusive licensee of Tetris Holding LLC, the company that owns Tetris rights worldwide and the Tetris Company licenses the Tetris brand to third parties.
Knight Moves is a puzzle video game released for Windows in 1995.
 It is based on a similar game, "Knight Move" (note that "Move" is singular in this version) created by Alexey Pajitnov of "Tetris" fame, though he had no part in the creation of this game.
Henk Rogers (born 1953) is a Dutch video game designer and entrepreneur.
 He is known for producing Japan's first major turn-based role-playing video game "The Black Onyx", securing the rights to distribute "Tetris" on video game consoles where the game found popularity, and as the founder of The Tetris Company which licenses the "Tetris" trademark.
 Nowadays, he serves as Managing Director of The Tetris Company.
Hexic is a 2003 tile-matching puzzle video game developed by Carbonated Games for various platforms.
 In Hexic, the player tries to rotate hexagonal tiles to create certain patterns.
 The game is available on Windows, Xbox 360, Windows Phone, and the web.
 The game was designed by Alexey Pajitnov, best known as the creator of "Tetris".
 While most earlier releases of the game were developed by Carbonated Games, the most recent version released for Windows and Windows Phone is developed by Other Ocean.
 The name is a pun on the word "hectic" and "hexagons".
Tetris (テトリス , Tetorisu ) is a puzzle video game for the Game Boy released in 1989.
 It is a portable version of Alexey Pajitnov's original Tetris and it was bundled in the North American and European releases of the Game Boy itself.
 It was the first game compatible with the Game Link Cable, a pack-in accessory that allowed two Game Boys to link together for multiplayer purposes.
 A colorized remake of the game was released on the Game Boy Color entitled Tetris DX (テトリス デラックス , Tetorisu Derakkusu ) .
 A Nintendo 3DS Virtual Console version of "Tetris" was released in December 2011 and lacks the multiplayer functionality.
 It was delisted from the Nintendo eShop after December 31, 2014.
Tetris (Russian: Те́трис , pronounced ] ) is a tile-matching puzzle video game, originally designed and programmed by Russian game designer Alexey Pajitnov.
 It was released on June 6, 1984, while he was working for the Dorodnitsyn Computing Centre of the Academy of Science of the USSR in Moscow.
 He derived its name from the Greek numerical prefix "tetra-" (all of the game's pieces contain four segments) and tennis, Pajitnov's favorite sport.
WildSnake, known as Super Snakey (スーパー・スネーキー ) in Japan, is a puzzle video game inspired by Tetris.
 Snakes of varying colors and lengths fall from the top of the screen and slither to the bottom.
 The goal is to clear out the snakes by touching two of the same color.
 "WildSnake" was designed by Alexey Lysogorov and presented by Alexey Pajitnov.
Tetris Online, Inc. is a video game developer and publisher based in Honolulu, Hawaii.
 The company is the exclusive online licensee of Tetris in North America and Europe.
 Founded in January 2006 by Nintendo of America founder and former president Minoru Arakawa, video game designer and publisher Henk Rogers and Tetris creator Alexey Pajitnov, Tetris Online, Inc. is the developer of social games Tetris Battle and Tetris Friends.
 In March 2013, it was revealed in a Newspaper article that Tetris Online had laid off 40% of its staff.
Pandora's Box is a 1999 video game created by the designer of Tetris, Alexey Pajitnov, for Microsoft.
Tetris (styled TETЯIS) is a puzzle game developed by Atari Games and originally released for arcades in 1988.
 Based on Alexey Pajitnov's "Tetris", Atari's version features the same gameplay as the computer editions of the game, as players must stack differently shaped falling blocks to form and eliminate horizontal lines from the playing field.
 The game features several difficulty levels and two-player simultaneous play.