A similar use is also made in Robert Asprin's The Cold Cash War, where megacorporations of this name, dominating the world, are not specifically Japanese.
American Civil War | Vietnam War | American Revolutionary War | Cold War | Iraq War | Johnny Cash | War of 1812 | Spanish Civil War | Korean War | Allies of World War II | English Civil War | Gulf War | Franco-Prussian War | Pacific War | war | Second Boer War | Peninsular War | United States Department of War | Second Sino-Japanese War | Crimean War | Thirty Years' War | Spanish-American War | Trojan War | Union (American Civil War) | French and Indian War | War Office | Falklands War | Seven Years' War | First Balkan War | Hundred Years' War |
Such organizations are a staple of science fiction long predating cyberpunk, appearing in the works of writers such as Philip K. Dick (Do Androids Dream of Electric Sheep?), Thea von Harbou (Metropolis), Robert A. Heinlein (Citizen of the Galaxy), Robert Asprin (The Cold Cash War) and Andre Norton (the Solar Queen novels).