Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155209 | Dispersant | Shigeki Yokoyama, Tadafumi Hashimoto, Takahito Yamaguchi, Hideo Hosaka, Takeshi Iimori | 2018-12-18 |
| 6596788 | Biodegradable composition and method of producing the same | Eiji Nishijima, Masahiko Tabata, Makoto Arai | 2003-07-22 |
| 6074782 | Lead storage battery containing a negative electrode active substance including a negative electrode additive | Muneharu Mizutani, Katsumi Yamada, Takaki Kamio | 2000-06-13 |
| 5811527 | Lignin composition, method of producing the same and dispersing agent for cement used the same | Hideaki Ishitoku, Toshihiro Sugiwaki, Tomoyuki Nakamoto | 1998-09-22 |
| 5233012 | Production of novel condensates comprising bisphenols and aromatic aminosulfonic acids, condensates and dispersant, additive and water-reducing agent based thereon | Shinji Hamada, Takashi Date, Toshihiro Sugiwaki, Nobuhiro Hanada | 1993-08-03 |
| 5153299 | Production of novel condensates comprising bisphenols and aromatic aminosulfonic acids, condensates and dispersant, additive and water-reducing agent based thereon | Shinji Hamada, Takashi Date, Toshihiro Sugiwaki, Nobuhiro Hanada | 1992-10-06 |