Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388050 | Method for treating thermoplastic resin composition containing flame retardant | Keizo Nakajima, Tetsuji Kawakami, Hiroshi Onishi | 2002-05-14 |
| 6336601 | Method for separating metallic material from waste printed circuit boards, and dry distillation apparatus used for waste treatment | Keizo Nakajima, Masaaki Suzuki, Hiroshi Onishi, Takahiko Terada | 2002-01-08 |