Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764642 | Shredder dust feeding device, reverberatory furnace provided with this feeding device, and furnace for burning shredder dust | Michio Nishiwaki, Kiyomi Tobe, Takayuki Sato, Kaoru Suzuki | 2004-07-20 |
| 6710974 | Tape cassette of high transparency material | Hiroyuki Umeda, Hisashige Fujiwara, Yasufumi Hashimoto | 2004-03-23 |
| 6680819 | Tape cassette of high transparency material | Hiroyuki Umeda, Hisashige Fujiwara, Yasufumi Hashimoto | 2004-01-20 |