Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10926174 | Information processing system, information processing method, information processing apparatus, and non-transitory storage medium storing information processing program for controlling progression of a game with at least one virtual area | Shingo Matsushita, Yuji Ohashi, Kouhei Maeda | 2021-02-23 |
| 9199164 | Image display device, computer readable storage medium, and game control method | — | 2015-12-01 |
| 5304226 | Abrasive grain and manufacture for the same | Mitsuru Hasegawa, Tadashi Hiraiwa | 1994-04-19 |
| 5215551 | Alumina-based ceramics materials, abrasive materials and method for the manufacture of the same | Tadashi Hiraiwa, Minoru MATSUKURA, Norimichi Aoki, Shoichi Imai | 1993-06-01 |
| 5192339 | Abrasive grain and method for manufacturing the same | Mitsuru Hasegawa, Tadashi Hiraiwa | 1993-03-09 |