Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178949 | Color-former | Masahiro Sakamoto, Tsutomu Murano | 1993-01-12 |
| 5168008 | Glazed cement product and method for manufacturing thereof | Shigeo Yoshida, Satoshi Kitagawa, Tetsuya Koide, Manaba Hasegawa | 1992-12-01 |
| 5061410 | Process for producing microcapsules | Masahiro Sakamoto | 1991-10-29 |
| 4797319 | Glazed cement product and method for manufacturing thereof | Shigeo Yoshida, Satoshi Kitagawa, Tetsuya Koide, Manabu Hasegawa | 1989-01-10 |
| 4663104 | Method for producing high-strength inorganic cement articles | Kazuo Ito, Seiji Terabe | 1987-05-05 |
| 4407769 | Method of manufacturing cement products having superior mechanical strength | Kazuo Ito, Takayuki Shirai, Tetsuya Koide | 1983-10-04 |