Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161415 | Cold deep hole forming device | Tadashi Okumura | 2000-12-19 |
| 6055826 | Refrigerator | Toshie Hiraoka, Isao Naito, Noriyuki Suda, Hisashi Matsui, Hiroshige Konishi +1 more | 2000-05-02 |
| 6044654 | Refrigerator | Keiko Igari, Katsumasa Sakamoto, Kouichi Hashimoto, Takenori Adachi | 2000-04-04 |
| 5983654 | Freezer-equipped refrigerator | Kazu Yamamoto, Toshie Hiraoka, Katsumasa Sakamoto, Kunihiko Yagi | 1999-11-16 |