Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9144750 | Method of replacing dispersion medium and apparatus therefor | Fumiya Zaima | 2015-09-29 |
| 8247604 | Method of replacing dispersion medium | Fumiya Zaima | 2012-08-21 |
| 8247605 | Method of replacing dispersion medium | Fumiya Zaima | 2012-08-21 |
| 8242304 | Process for production of isophthalic acid | Fumiya Zaima, Nobuo Namiki, Hideaki Fujita | 2012-08-14 |
| 8236982 | Process for production of terephthalic acid | Fumiya Zaima, Hideaki Fujita, Nobuo Namiki | 2012-08-07 |
| 7569707 | Production method of highly pure pyromellitic dianhydride | Hiroshi Ogawa, Atsushi Okoshi, Masashi Yabuno | 2009-08-04 |
| 7547803 | Process for producing a high purity aromatic polycarboxylic acid | Shinichi Nagao, Jitsuo Oishi, Kenji Nakaya, Hiroshi Machida | 2009-06-16 |
| 7071362 | Process for producing alicyclic aldehydes | Tomohiro Sugawara, Fumiya Zaima, Atsushi Okoshi, Kinji Kato | 2006-07-04 |
| 7005540 | Method of purifying aromatic polycarboxylic acid | Makoto Komatsu | 2006-02-28 |
| 6500347 | Process for recovering crystals from a slurry | Fumio Ohkoshi | 2002-12-31 |
| 6268528 | Method of producing naphthalenedicarboxylic acid | Hiroshi Machida, Fumiya Zaima, Hiroshi Watanabe, Emiko Yokose | 2001-07-31 |
| 6018077 | Process for producing 2,6-naphthalenedicarboxylic acid | Fumio Ohkoshi, Hiroshi Ogawa, Kazuo Tanaka, Hiroshi Machida | 2000-01-25 |
| 5880313 | Process for producing aromatic carboxylic acid | Fumiya Zaima, Hideaki Fujita, Masami Matsumoto | 1999-03-09 |
| 5110982 | Process for producing 2,6-napthalene dicarboxylic acid | Toru Tanaka | 1992-05-05 |
| 5068410 | Process for producing highly pure 2,6-naphthalene dicarboxylic acid | Toru Tanaka | 1991-11-26 |
| 4886906 | Process for producing 2,6-naphthalene dicarboxylic acid | Toru Tanaka | 1989-12-12 |