Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221769 | Production of p-acetylaminophenol from p-aminophenyl acetate | Hideyuki Akieda, Naoki Sato, Mitsumasa Umemoto | 1993-06-22 |
| 5220081 | Process for preventing consolidation of p-dichlorobenzene | Nobuo Shimuta, deceased, Mamoru Ueda, Yosiro Nagatake, Toyohiro Tajiri | 1993-06-15 |
| 5208400 | Process for producing allyl bromides | Yuji Fukunaga, Hironobu Horie, Mitsumasa Umemoto, Yasuhiro Matsuki | 1993-05-04 |
| 5202329 | Pyrimidinyloxy(thio)quinoline derivative, and agri-horticultural fungicide comprising the derivative as active ingredient | Katsutoshi Ishikawa, Yukihiro Yoshikawa, Tsutomu Ishii, Hiroharu Tanikawa, Sunao Maeda +3 more | 1993-04-13 |
| 5144083 | Process for producing p-hydroxyneophyl m-phenoxybenzyl ether | Hideyuki Akieda, Naoki Sato, Koichi Morinaga, Yoshinori Ide, Mitsumasa Umemoto | 1992-09-01 |
| 5105021 | Preparation of a difluorohalomethoxybenzene | Hideyuki Akieda, Naoki Sato, Koichi Morinaga, Yoshinori Ide, Mitsumasa Umemoto | 1992-04-14 |
| 5104491 | Method for purifying pentachloronitrobenzene by solid base treatment | Mitsumasa Umemoto, Yoshitsugu Kono, Hiroshi Maeda | 1992-04-14 |
| 4962222 | Preparation process of .alpha.-l-aspartyl-l-phenylalanine methyl ester having low hygroscopicity | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1990-10-09 |
| 4918216 | Preparation process of .alpha.-l-aspartyl-l-phenyl-alanine methyl ester or hydrohalide thereof | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1990-04-17 |
| 4897506 | Isolation of alpha-l-aspartyl-l-phenylalanine methyl ester from aqueous medium | Takeshi Oura, Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi, Masanobu Ajioka | 1990-01-30 |
| 4801732 | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester | Takeshi Oura, Chojiro Higuchi, Toshio Katoh, Akihiro Yamaguchi | 1989-01-31 |
| 4780561 | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof | Takeshi Oura, Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi | 1988-10-25 |
| 4778916 | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1988-10-18 |
| 4745210 | Preparation process of N-formyl-.alpha.-aspartyl phenylalanine | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1988-05-17 |
| 4675439 | Preparation process of N-acylphenylalanines | Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi | 1987-06-23 |
| 4612388 | Process for producing N-acylphenylalanines | Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi | 1986-09-16 |
| 4605759 | Process for production of .beta.-phenylserine | Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi | 1986-08-12 |
| 4484003 | Preparation process of .beta.-chloroalanine | Masaharu Ohoka, Toshio Katoh, Nobuyuki Kawashima, Chojiro Higuchi, Nobuhiro Kawashima +3 more | 1984-11-20 |
| 4453008 | Production process of DL-cystein | Masaharu Ohoka, Chojiro Higuchi, Toshio Katoh, Nobuyuki Kawashima, Akihiro Yamaguchi +2 more | 1984-06-05 |
| 4393000 | Cyclization process for producing aziridine-2-carboxylic acid or its salts | Chojiro Higuchi, Toshio Kato, Nobuyuki Kawashima, Akihiro Yamaguchi, Shosuke Nagai +1 more | 1983-07-12 |
| 4350643 | Process for producing 2,3-dihalopropionitrile | Shosuke Nagai, Toshio Kato, Chojiro H. Iguchi, Nobuyuki Kawashima, Akihiro Yamaguchi +1 more | 1982-09-21 |
| 4342700 | Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same | Katsuya Sakai, Toshio Kato, Chojiro Higuchi, Hisamichi Murakami | 1982-08-03 |
| 4338259 | Alpha-halogeno-beta-aminopropionitriles or the mineral acid salts thereof, and processes for production thereof | Akihiro Yamaguchi, Toshio Kato, Chojiro Higuchi, Hisamichi Murakami | 1982-07-06 |
| 4304933 | Production of DL-serine | Chojiro Higuchi, Toshio Kato, Nobuyuki Kawashima, Akihiro Yamaguchi, Shosuke Nagai +1 more | 1981-12-08 |
| 4276187 | Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same | Katsuya Sakai, Toshio Kato, Chojiro Higuchi, Hisamichi Murakami | 1981-06-30 |