Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512194 | Thermoplastic resin composition for wire-coating and heat resistant wire | Kaoru Iwasa | 2022-11-29 |
| 10559407 | Process for producing electrical wire molded body | Shinichi Saito, Hideo Ohsawa | 2020-02-11 |
| 5874609 | Process for crystallizing L-.alpha.-aspartyl-L-phenylanlanine methyl ester | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1999-02-23 |
| 5859282 | Method of dissolving crystals of L-.alpha.-aspartyl-L-phenyl alanine methyl ester | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1999-01-12 |
| 5744632 | Process for crystallizing L-.alpha.-aspartyl-L-phenylalanine methyl ester | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1998-04-28 |
| 5728863 | Process for producing .alpha.-L-aspartyl-L-phenylalanine methyl ester | Takehiko Kataoka, Osahiro Sato | 1998-03-17 |
| 5623079 | Method of preparing N-formyl-L-aspartic anhydride | Takehiko Kataoka, Osahiro Sato | 1997-04-22 |
| 5621137 | Method of dissolving crystals of L-.alpha.-aspartyl-L-phenylalanine methyl ester | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1997-04-15 |
| 5543554 | Process for preparing dry crystals of the methyl ester of .alpha.-L-aspartyl-L-phenylalanine, having improved solubility | Harutoshi Ohura, Akihiko Yasaki, Masayoshi Naruse | 1996-08-06 |
| 5532015 | Process for producing .alpha.-L-aspartyl-L-phenylalanine methyl ester | Atsuhiko Hirano, Satoshi Yamahara, Takehiko Kataoka | 1996-07-02 |
| 5501712 | Method for crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl ester | Sou Abe | 1996-03-26 |
| 5473097 | Granules of .alpha.-L-aspartyl-L-phenylalanine methyl ester | Akihiko Yasaki | 1995-12-05 |
| 5425787 | Method for crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl ester | Sou Abe | 1995-06-20 |
| 5393915 | Method of preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester or its hydrochloride salt | Takehiko Kataoka, Akihiko Yasaki, Toshihisa Kato | 1995-02-28 |
| 5391810 | Method of crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester | So Abe, Toshihisa Kato, Hideo Takeda | 1995-02-21 |
| 5304671 | Method for recovery of .alpha.-L-aspartyl-L-phenylalanine methyl ester, L-phenylalanine and L-aspartic acid | Sou Abe, Tadashi Takemoto, Toshihisa Kato, Satoshi Kumon | 1994-04-19 |
| 5292923 | Method of preparing .alpha.-l-aspartyl-l-phenylalanine methyl ester hydrochloride | Toshihisa Kato, Hideo Takeda, Mikiya Kano, Tadashi Takemoto | 1994-03-08 |
| 5275702 | Distillation method of separating organic solvents | Takehiko Kataoka, Haruo Kawasaki, Harutoshi Ohura, Yoshinobu Uchida, Akihiko Yasaki | 1994-01-04 |
| 5266719 | Method of preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester | Kimiyasu Sakamoto, So Abe, Toshihisa Kato | 1993-11-30 |
| 5248806 | Method of preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester | So Abe, Toshihisa Kato | 1993-09-28 |
| 5097060 | Process for crystallizing L-alpha-aspartyl-L-phenyl-alanine methyl ester | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1992-03-17 |
| 5041607 | Process for crystallizing L-alpha-aspartyl-L-phenyl-alanine methyl | Masayoshi Naruse, Haruo Kawasaki, Harutoshi Oura, Masao Nakamura, Hideo Takeda | 1991-08-20 |
| 4994605 | Method of separating alpha-L-aspartyl-L-phenylalanine methyl ester through crystallization | Katsumi Sugiyama | 1991-02-19 |
| 4810816 | Process for the production of n-formyl-aspartyl-phenylalanine or its methyl ester | Toshiaki Tsuji | 1989-03-07 |
| 4618695 | Method of preparing methyl ester and its hydrochloride | Yoichi Ozawa, Emiko Shinohara, Tadashi Takemoto, Chikahiko Eguchi | 1986-10-21 |