Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618197 | Gypsum-based board material producing apparatus | Yuichi Hirooka, Masaru Yoshida | 2020-04-14 |
| 10589444 | Mixer and mixing method for gypsum slurry | Ushio Sudo, Wataru Nakamura, Hirokuni Tani | 2020-03-17 |
| 7691467 | Gypsum board | Tatsukazu Kimura, Norio Tsuno, Hirokuni Tani, Kenichiro Osawa | 2010-04-06 |
| 7686902 | Method of fabricating plaster board | Tatsukazu Kimura, Norio Tsuno, Hirokuni Tani, Kenichiro Osawa | 2010-03-30 |
| 6375793 | Method and tower for removing residual monomers | Seiichi Uchida, Toshinobu Kurazono, Etsuro Matsuda | 2002-04-23 |
| 5804039 | Method for removing residual monomers | Toshinobu Kurazono, Seiichi Uchida, Etsuro Matsuda | 1998-09-08 |