Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9347112 | Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in terephthalic acid production process | Hideaki Fujita | 2016-05-24 |
| 9266810 | Crossflow type filtering operation method using ceramic filter | — | 2016-02-23 |
| 9150487 | Crossflow type filtering operation method using ceramic filter | Nirou Hoshishima, Kazutoshi Uozumi, Hideaki Fujita | 2015-10-06 |
| 9144750 | Method of replacing dispersion medium and apparatus therefor | Masato Inari | 2015-09-29 |
| 8957247 | Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in aromatic carboxylic acid production process | Hideaki Fujita | 2015-02-17 |
| 8247604 | Method of replacing dispersion medium | Masato Inari | 2012-08-21 |
| 8247605 | Method of replacing dispersion medium | Masato Inari | 2012-08-21 |
| 8242304 | Process for production of isophthalic acid | Nobuo Namiki, Hideaki Fujita, Masato Inari | 2012-08-14 |
| 8236982 | Process for production of terephthalic acid | Masato Inari, Hideaki Fujita, Nobuo Namiki | 2012-08-07 |
| 8178716 | Method of crystallization | Nirou Hoshishima | 2012-05-15 |
| 7071362 | Process for producing alicyclic aldehydes | Tomohiro Sugawara, Atsushi Okoshi, Kinji Kato, Masato Inari | 2006-07-04 |
| 6927306 | Process for producing hydrogenated aromatic polycarboxylic acid and process for producing hydrogenated aromatic polycarboxylic anhydride | — | 2005-08-09 |
| 6541662 | Process for producing a hydrogenation product of an aromatic carboxylic acid | Hiroshi Machida, Ko Kedo | 2003-04-01 |
| 6268528 | Method of producing naphthalenedicarboxylic acid | Hiroshi Machida, Masato Inari, Hiroshi Watanabe, Emiko Yokose | 2001-07-31 |
| 6013831 | Processes for the production of high-purity dimethyl 2, 6-naphthalenedicarboxylate and naphthalenedicarboxylic acid | Hiroshi Machida, Kengi Nakaya, Kazuo Tanaka | 2000-01-11 |
| 5880313 | Process for producing aromatic carboxylic acid | Hideaki Fujita, Masami Matsumoto, Masato Inari | 1999-03-09 |
| 5712412 | Process for producing highly pure terephthalic acid | Masato Inary, Fumio Ohkoshi | 1998-01-27 |
| 5705682 | Process for producing highly pure terephthalic acid | Fumio Ohkoshi, Masato Inary | 1998-01-06 |
| 5684187 | Process for producing highly pure terephthalic acid | Fumio Ohkoshi, Masato Inary | 1997-11-04 |
| 5679847 | Process for producing terephthalic acid | Fumio Ohkoshi, Masato Inary | 1997-10-21 |
| 5310944 | Process for producing carboxylated compound | Takao Kawaki, Yuh Miyauchi, Toshio Watanabe, Katsushige Hayashi, Satoshi Ueno +1 more | 1994-05-10 |
| 5187311 | Methylthiophenol derivatives and p-methylthiophenyl chloroformates and processes for producing these derivatives | Mutsuhiko Takeda, Isao Hagiwara, Shuzabu Sakaguchi | 1993-02-16 |
| 5149857 | Process for production of sulfonium compounds | Mutsuhiko Takeda, Isao Hagiwara, Shuzabu Sakaguchi | 1992-09-22 |
| 5075476 | Process for production of sulfonium compounds and novel methylthiphenol derivatives | Mutsuhiko Takeda, Isao Hagiwara, Shuzabu Sakaguchi | 1991-12-24 |
| 5021197 | Process for production of sulfonium compounds | Mutsuhiko Takeda, Masamichi Mizukami, Yasumasa Norisue, Isao Hagiwara | 1991-06-04 |