Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342651 | Method for manufacturing modified wood | Hiroaki Usui, Shozo Hirao, Satoru Konishi, Kenji Oonisi, Arihiro Adachi | 1994-08-30 |
| 5318802 | Modifying a wood material utilizing formaldehyde polymer and sulfur dioxide | Arihiro Adachi, Hiroaki Usui | 1994-06-07 |
| 5279640 | Method of making iron-based powder mixture | Kuniaki Ogura, Shigeaki Takajo, Akio Sonobe, Yoshiaki Maeda, Toshiyuki MINEGISHI | 1994-01-18 |