Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6992196 | Method for producing refined ethylene sulfite | Toshimitsu Kato, Minoru Kotato | 2006-01-31 |
| 6025520 | Method for preparing (meth)acrylic acid ester | Yoshiro Suzuki, Masahiko Yamagishi, Chikara Sugimoto | 2000-02-15 |
| 5866713 | Method for preparing (meth)acrylic acid ester | Yoshiro Suzuki, Masahiko Yamagishi, Chikara Sugimoto | 1999-02-02 |
| 5856562 | Method for inhibiting polymerization of (meth) acrylic acid or esters thereof | Tooru Segi | 1999-01-05 |
| 5741681 | Method for producing L-aspartic acid | Naoki Kato, Yoshiaki Mori, Seishi Fujii, Naoyuki Watanabe | 1998-04-21 |
| 5449820 | Method of preparing high purity 2,6-naphthalene dicarboxylic acid | Yoshio Fukui, Tatsuto Yoshioka, Chikara Sugimoto, Manabu Okuyama, Masahiko Yamagishi | 1995-09-12 |
| 5324868 | Method for preparing 4,4'-biphenol | Masashi Inaba, Mamoru Mizutani | 1994-06-28 |
| 5097080 | Process for preparing 4,4'-dihydroxybiphenyl | Masashi Inaba, Mamoru Mizutani | 1992-03-17 |