Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4733619 | Powder feeder | Sadahiko Maeda, Yasumasa Idei, Toshihiro Inatani, Mitsuo Sumito, Takao Hamada | 1988-03-29 |
| 4613113 | Apparatus for blowing powdery refining agent into refining vessel | Sadayuki Saito, Tadaaki Iwamura, Ryoji Takabe | 1986-09-23 |