Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849146 | Method for producing pyrolytic boron nitride article | Hiroaki Tanji, Masaharu Suzuki, Kenji Nomura, Takashi Kawasaki | 1989-07-18 |
| 4690841 | Pyrolytic boron nitride article | Hiroaki Tanji, Masaharu Suzuki, Kenji Nomura, Takashi Kawasaki | 1987-09-01 |
| 4559242 | Method of preparing color developer sheets | Hirofumi Mitsuo, Keiso Saeki | 1985-12-17 |
| 4489337 | Heat-sensitive recording paper | Hiroharu Matsukawa | 1984-12-18 |
| 4485139 | Heat-sensitive recording paper | Tomizo Namiki, Fumiaki Shinozaki | 1984-11-27 |
| 4473831 | Heat sensitive recording paper | — | 1984-09-25 |
| 4408781 | Recording materials | — | 1983-10-11 |