Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873071 | Graphite structures and method for production thereof | Yasuhiro Yamada, Takeshi Imamura, Hidemasa Honda, Masanori Minohata | 1989-10-10 |
| 4834910 | Coating agent for imparting electroconductivity | Tatsuo Wakayama | 1989-05-30 |
| 4833210 | Modified copolymer | Shiroh Gotoh, Sadao Kitagawa | 1989-05-23 |