Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077971 | Method for purifying homocystine | Jun Takehara, Shuji Ichikawa, Hirotaka Ryutou, Kenichi Sugimoto, Toshihiko Yahata | 2000-06-20 |
| 5847205 | Method for producing homocystine | Jun Takehara, Shuji Ichikawa | 1998-12-08 |
| 5609790 | Liquid crystal compositions | Takashi Tanaka, Yuzuru Sato, Shiro Inui | 1997-03-11 |
| 5543547 | Method of producing aromatic carbonate | Hidekazu Miyagi, Satoshi Imada, Shoichi Seo, Takahiro Yoneyama | 1996-08-06 |
| 5498789 | Method of producing aromatic carbonate | Masatoshi Takagi, Hidekazu Miyagi, Yuji Ohgomori | 1996-03-12 |
| 5442103 | Process for producing 2,6-naphthalenedicarboxylic acid | Takahiro Sugawara, Katsufumi Kujira, Naoki Suzuki, Tomoya Sakata | 1995-08-15 |
| 5344969 | Process for purification of naphthalenedicarboxylic acid | Takahiro Sugawara, Miwa Shirasaki | 1994-09-06 |
| 5225593 | Process for preparing pyruvate | Makoto Imanari, Katufumi Kujira | 1993-07-06 |
| 5220079 | Process for para-methylolating phenol compounds | Takahiro Sugawara, Naoki Suzuki, Kimiko Kaneko | 1993-06-15 |
| 5196598 | Process for producing polyhydroperoxy aromatic compound | Takahiro Sugawara, Naoki Suzuki, Kimiko Kaneko | 1993-03-23 |
| 5175352 | Process for preparing 2,6-naphthalenedicarboxylic acid | Takahiro Sugawara | 1992-12-29 |
| 5155263 | Process for preparing .alpha.-ketobutyric acid | Makoto Imanari, Masashi Suzuki, Naoki Suzuki | 1992-10-13 |
| 5118442 | Optically active compound | Masaki Saito, Makoto Takeda, Noriko Wada, Shiroh Inui, Hiroshi Taniguchi +4 more | 1992-06-02 |
| 5091592 | Process for preparing 4,4'-dihydroxybiphenyl | Takahiro Sugawara, Kimiko Kaneko | 1992-02-25 |
| 5019656 | Process for preparing p-hydroxybenzyl alcohol | Takahiro Sugawara, Naoki Suzuki | 1991-05-28 |
| 4937392 | Process for preparing 4,4'-dihydroxydiphenylmethane | Makoto Imanari, Takahiro Sugawara, Satoshi Ohtaka, Naoki Suzuki | 1990-06-26 |
| 4937382 | Process for preparing 2-(o-aminophenyl)ethanol | Katufumi Kujira, Makoto Imanari | 1990-06-26 |
| 4906791 | Process for preparing p-cumylphenol | Makoto Imanari, Takahiro Sugawara, Satoshi Ohtaka, Masashi Inaba, Mitsugi Kataoka | 1990-03-06 |
| 4757152 | Process for producing indoles | Makoto Imanari, Katsuhumi Kuzira, Takatoshi Seto | 1988-07-12 |
| 4700008 | 4,8-dimethylbicyclo(3.3.1)nonane derivatives | Makoto Takeda, Akira Yoshida, Teruo Mori | 1987-10-13 |
| 4659841 | Process for the preparation of indoles | Makoto Imanari, Katsufumi Kuzira, Takatoshi Seto | 1987-04-21 |
| 4568778 | Process for producing tert-amylphenols | Makoto Imanari, Takahiro Sugawara, Tadashi Ayusawa, Tadamichi Aoki | 1986-02-04 |
| 4564713 | Process for producing 4,4'-dihydroxydiphenyls | Makoto Imanari, Takahiro Sugawara | 1986-01-14 |
| 4329507 | Substituted aryl ethylenes | Makoto Takeda, Masayuki Uchide | 1982-05-11 |
| 4263457 | Process for producing biphenyl derivatives | Makoto Takeda, Eiji Taniyama, Yuji Ozawa, Makoto Imanari, Kunimasa Takahashi | 1981-04-21 |