Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8383833 | Method for producing optically active amino acid derivative | Shohei Yamamoto, Masaru Mitsuda | 2013-02-26 |
| 8252919 | 2′-hydroxy-protected ribonucleoside derivative and production method thereof | Hirofumi Maeda, Masaru Mitsuda | 2012-08-28 |
| 8058471 | Method for producing optically active hydroxycarboxylic acid derivatives or salts thereof | Susumu Amano, Shohei Yamamoto, Masaru Mitsuda | 2011-11-15 |
| 7947722 | Imidazolidinone derivative, method of producing the same and method of producing optically active amino acid | Yasuhiro Saka, Kazumi Okuro, Masaru Mitsuda | 2011-05-24 |
| 7109352 | Process for producing optically active amino acid derivatives | Masanobu Sugawara, Kazumi Okuro, Yasuhiro Saka, Nobuo Nagashima, Kenji Inoue +5 more | 2006-09-19 |
| 6887820 | Method for producing optically active compounds | Takao Ikariya, Shohei Hashiguchi, Jun Takehara, Nobuyuki Uematsu, Kazuhiko Matsumura +1 more | 2005-05-03 |
| 6720449 | Process for preparing optically active amino acid derivatives | Masanobu Sugawara, Kazumi Okuro, Yasuhiro Saka, Nobuo Nagashima, Kenji Inoue +5 more | 2004-04-13 |
| 6281379 | Process for producing norstatin derivatives | Masanobu Sugawara, Kenji Inoue | 2001-08-28 |
| 6184381 | Process for preparing optically active compounds | Takao Ikariya, Shohei Hashiguchi, Jun Takehara, Nobuyuki Uematsu, Kazuhiko Matsumura +1 more | 2001-02-06 |
| 5214048 | Oxetanocins | Nobuyoshi Shimada, Shigeru Hasegawa, Takayuki Tomizawa, Seiichi Saito, Kyoichi Shibuya +5 more | 1993-05-25 |
| 4983328 | N-(4-(3-aminopropyl)aminobutyl)-2-(.omega.-gua nidino-fatty-acid-amido(-2-substituted-ethanamide, salt thereof, and process for preparation thereof | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Hironobu Iinuma, Daishiro Ikeda +1 more | 1991-01-08 |
| 4904585 | Novel antibiotic NK84-0218 and process for the production of the same | Nobuyoshi Shimada, Shigeru Hasegawa, Takashi Harada, Takayuki Tomizawa | 1990-02-27 |
| 4851446 | Immunosuppressing method | Hamao Umezawa, Tomio Takeuchi, Masaaki Ishizuka, Fuminori Abe, Teruya Nakamura | 1989-07-25 |
| 4845215 | Purine derivative | Nobuyoshi Shimada, Takayuki Tomizawa, Shigeru Hasegawa, Kaoru Matsuo, Hiroo Hoshino | 1989-07-04 |
| 4824955 | Selenium oxy chloride-pyridine or bipyridine complexes | Hisao Ekimoto, Masanobu Suzuki, Takao Izawa, Katsutoshi Takahashi, Tokuji Nakatani | 1989-04-25 |
| 4808703 | Novel 3-(4'-aminobutylamino) propylaminobleomycin derivatives | Hamao Umezawa, Yasuhiko Muraoka, Tokuji Nakatani, Takeyo Fukuoka, Katsutoshi Takahashi | 1989-02-28 |
| 4778824 | Method for suppressing a transplantation immunity and treating an allergic disease and an autoimmune disease | Hamao Umezawa, Tomio Takeuchi, Masaaki Ishizuka, Fuminori Abe, Teruya Nakamura | 1988-10-18 |
| 4743689 | Antibiotic derivative of adenine | Nobuyoshi Shimada, Shigeru Hasegawa, Takashi Harada, Takayuki Tomizawa | 1988-05-10 |
| 4658058 | 11-O-methylspergualin | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Hironobu Iinuma, Daishiro Ikeda +1 more | 1987-04-14 |
| 4603015 | Method for producing glyoxylylspermidine and the use thereof for the production of 15-deoxy spergualin-related compounds | Yoshihisa Umeda, Makoto Moriguchi, Teruya Nakamura, Tomio Takeuchi, Hamao Umezawa | 1986-07-29 |
| 4568490 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Yasuhiko Muraoka, Tokuji Nakatani, Takeyo Fukuoka, Katsutoshi Takahashi | 1986-02-04 |
| 4537880 | Aminopropylaminobleomycin derivatives and process for preparation thereof | Hamao Umezawa, Yasuhiko Muraoka, Tokuji Nakatani, Takeyo Fukuoka, Katsutoshi Takahashi | 1985-08-27 |
| 4518532 | N-[4-(3-aminopropyl)-aminobutyl]-2-(.omega.-gua nidino-fatty-acid-amido)-2-substituted-ethanamide and salt thereof | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Hironobu Iinuma, Daishiro Ikeda +1 more | 1985-05-21 |
| 4518802 | N-[4-[(3-aminopropyl)amino]butyl]-2,2-dihydroxyethanamide | Hamao Umezawa, Tomio Takeuchi, Shinichi Kondo, Hironobu Iinuma, Daishiro Ikeda +1 more | 1985-05-21 |
| 4500452 | (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof | Hamao Umezawa, Yasuhiko Muraoka, Tokuji Nakatani, Takeyo Fukuoka, Katsutoshi Takahashi | 1985-02-19 |