Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679767 | Purification process of aliphatic polyester | Hiroshi Suizu, Masatoshi Takagi, Akihiro Yamaguchi | 1997-10-21 |
| 5637631 | Preparation process of degradable polymer | Ikumi Kitada, Chojiro Higuchi, Akihiro Yamaguchi | 1997-06-10 |
| 5630849 | Dyeing method | Taiji Kameoka, Isamu Kawamura, Isamu Ghoda, Keisuke Takuma, Akihiro Yamaguchi +1 more | 1997-05-20 |
| 5571889 | Polymer containing monomer units of chemically modified polyaspartic acids or their salts and process for preparing the same | Toshio Katoh, Akinori Nagatomo, Hiroaki Tamatani, Akihiro Yamaguchi | 1996-11-05 |
| 5556711 | Decomposable composite material | Katashi Enomoto, Akihiro Yamaguchi, Kazuhiko Suzuki | 1996-09-17 |
| 5525682 | Superabsorbent polymer and process for producing same | Akinori Nagatomo, Hiroaki Tamatani, Akihiro Yamaguchi | 1996-06-11 |
| 5496923 | Purification process of aliphatic polyester | Hiroshi Suizu, Masatoshi Takagi, Akihiro Yamaguchi | 1996-03-05 |
| 5484945 | Preparation process of polysuccinimide | Akinori Nagatomo, Hiroaki Tamatani, Akihiro Yamaguchi | 1996-01-16 |
| 5461085 | Superabsorbent polymer and process for producing same | Akinori Nagatomo, Hiroaki Tamatani, Akihiro Yamaguchi | 1995-10-24 |
| 5447962 | Degradable foam and use of same | Katashi Enomoto, Akihiro Yamaguchi, Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara | 1995-09-05 |
| 5444107 | Degradable polymer composition | Katashi Enomoto, Akihiro Yamaguchi, Hosei Shinoda | 1995-08-22 |
| 5434004 | Degradable laminate composition | Katashi Enomoto, Akihiro Yamaguchi, Hosei Shinoda | 1995-07-18 |
| 5428126 | Aliphatic polyester and preparation process thereof | Takeshi Kashima, Taiji Kameoka, Chojiro Higuchi, Akihiro Yamaguchi | 1995-06-27 |
| 5424477 | Preparation process of .alpha.-aspartyl-L-phenylalanine methyl ester | Chojiro Higuchi, Ikumi Kitada, Akinori Nagatomo, Katashi Enomoto, Akihiro Yamaguchi | 1995-06-13 |
| 5409751 | Degradable container | Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara | 1995-04-25 |
| 5401796 | Aliphatic polyester and preparation process thereof | Takeshi Kashima, Taiji Kameoka, Chojiro Higuchi, Akihiro Yamaguchi | 1995-03-28 |
| 5387665 | Resins for electrohotographic toners | Akira Misawa | 1995-02-07 |
| 5374765 | Method for extracting an amino acid ester from a hydrous solution of a mineral acid salt thereof | Tomoko Kamashita, Hiroyuki Yamashita, Teruyuki Nagata | 1994-12-20 |
| 5310865 | Polyhydroxycarboxylic acid and preparation process thereof | Katashi Enomoto, Akihiro Yamaguchi | 1994-05-10 |
| 5302743 | Preparation of N-protected .alpha.-L-aspartyl-L-phenylalanine methyl ester | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1994-04-12 |
| 5294469 | Industrial woven fabric and composite sheet comprising same | Kazuhika Suzuki, Takayuki Watanabe, Yasuhiro Kitahara | 1994-03-15 |
| 5283357 | Separation method of .alpha.-l-aspartyl-l-phenylalanine methyl ester | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Akihiro Yamaguchi | 1994-02-01 |
| 5254323 | Industrial process for the separation and recovery of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Isao Kikuchi, Shinji Takenaka, Mitsuo Kudoh | 1993-10-19 |
| 5206413 | Method for preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester | Takeshi Oura, Chojiro Higuchi, Toshio Katoh, Akihiro Yamaguchi | 1993-04-27 |
| 5147624 | Production process of chlorine | Tadamitsu Kiyoura, Naoshi Fujimoto, Toshihide Suzuki, Yasuo Kogure, Tokio Nagayama +1 more | 1992-09-15 |