Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9205326 | Portable video game system | Satoru Okada, Kazuo Yoneyama, Masahiko Ota, Ryuji Umezu | 2015-12-08 |
| RE43023 | Dual loading port semiconductor processing equipment | Tatsuhisa Matsunaga, Hidehiro Yanagawa | 2011-12-13 |
| 8015416 | Memory information protection system and methods | Takashi Oshikiri | 2011-09-06 |
| 7445551 | Memory for video game system and emulator using the memory | Satoru Okada, Kazuo Yoneyama, Masahiko Ota, Ryuji Umezu | 2008-11-04 |
| 7137894 | Hand-held display system and display method and storage medium therefor | Satoru Okada, Ryuji Umezu | 2006-11-21 |
| 6810463 | Gaming machine that is usable with different game cartridge types | Satoru Okada, Kazuo Yoneyama, Masahiko Ota, Ryuji Umezu | 2004-10-26 |
| 6641350 | Dual loading port semiconductor processing equipment | Tatsuhisa Matsunaga, Hidehiro Yanagawa | 2003-11-04 |
| 6322447 | Portable color display game machine and storage medium for the same | Satoru Okada, Ryuji Umezu | 2001-11-27 |
| 6315669 | Portable color display game machine and storage medium for the same | Satoru Okada, Ryuji Umezu | 2001-11-13 |