Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618978 | Method of producing choline of a high purity | Shunji Hyoda, Youichi Hasegawa | 1997-04-08 |
| 5395977 | Process for producing optical active 4-hydroxy-2-cyclopentenone | Yorihiko Inoue, Masayoshi Minai | 1995-03-07 |
| 5395985 | Compound and separating agent | — | 1995-03-07 |
| 5334776 | Compound and separating agent | — | 1994-08-02 |
| 5306844 | Tartaric acid amide derivative and method of producing the same | Koichi Tanaka | 1994-04-26 |
| 5276214 | Optically active biphenyl derivative and process for optical resolution | — | 1994-01-04 |
| 5202504 | Optically active biphenyl derivative and process for optical resolution | — | 1993-04-13 |
| 5091400 | Clathrate compound | Minoru Yagi | 1992-02-25 |
| 5043495 | Process of separation and purification of a propargyl alcohols | Koichi Tanaka, Kikuo Ataka | 1991-08-27 |
| 5041620 | Method for producing optically active 2-cyclopenten-4-one-1-ol esters, 2-cyclopenteno-4-one-1-ol ester and complexes thereof with optically active 1,6-diphenyl-2,4-hexadiyne-1,6-diol | Masayoshi Minai | 1991-08-20 |
| 4976834 | Asymmetric photochemical reaction process | — | 1990-12-11 |
| 4962274 | Process for separating alkyl-substituted naphthalene derivatives using clathrate complexes | — | 1990-10-09 |
| 4918190 | Crystalline complex compounds of propargyl alcohols and tertiary diamines, and process of separation and purification of propargyl alcohols using the same | Koichi Tanaka, Kikuo Ataka | 1990-04-17 |
| 4898654 | Method of producing optically active .beta.-lactam derivatives | Kouichi Tanaka, Masatoshi Taniguchi, Michio Sasaoka | 1990-02-06 |
| 4841081 | Method of optically resolving a racemate or a diastereomeric mixture of glycidyl compound | Koichi Tanaka, Tetsuya Nakata | 1989-06-20 |
| 4818771 | Diphenic acid bis(dicyclohexylamide) for clothrate compound, process for producing the same | Ayako Sekikawa, Hideo Sugi, Kenji Tahara | 1989-04-04 |
| 4785111 | N-cyclohexyl-polycarboxamide compound and derivatives thereof | — | 1988-11-15 |
| 4780317 | Sustained release antimicrobial agents and method of fouling control using the same | Ayako Sekikawa, Hideo Sugi, Kenji Tahara | 1988-10-25 |
| 4769502 | Alkynol type compounds and alcohol-separating process | Koichi Tanaka | 1988-09-06 |
| 4644021 | Sustained release antimicrobial agents and methods of fouling control using the same | Masaru Okamoto, Fujiaki Mochizuki | 1987-02-17 |
| 4467102 | Optically active propargyl alcohol derivative and a method for preparation of the same | Koichi Tanaka | 1984-08-21 |