Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139620 | Calcium silicate board and method of manufacturing same | Seishiro Suzuki, Masato Sakiyama, Takuya Asami, Tomoki Iwanaga, Shigemitsu Shiromoto +2 more | 2000-10-31 |
| 5952087 | Calcium silicate board and method of manufacture therefor | Masato Sakiyama, Takuya Asami, Tomoki Iwanaga, Masaaki Oda | 1999-09-14 |
| 5851354 | Method of manufacturing calcium silicate board | Masato Sakiyama, Takuya Asami, Tomoki Iwanaga, Masaaki Oda | 1998-12-22 |