Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364958 | Process for the production of methylene-crosslinked polyphenylene polyisocyanate | Noritoshi Ishida, Zunzi Tashima, Naoki Sato, Michiya Takasaki, Masaaki Iijima +1 more | 1994-11-15 |
| 5179227 | Fractionation process of reaction mixture containing methylene bridged polyphenylene polyisocyanate | Noritoshi Ishida, Zunzi Tashima, Mitsunori Shimamatsu, Takashi Nagou | 1993-01-12 |
| 4879411 | Method for racemization of optically active serine | Ken-ichi Ishiwata, Takeshi Nakamura, Nobuyoshi Makiguchi, Shoichiro Miyahara, Toshio Matsumoto | 1989-11-07 |
| 4769474 | Process for purifying tryptophane | Shoichiro Miyahara, Toshio Matsumoto, Tooru Miyahara | 1988-09-06 |
| 4733009 | Method for separating glycine and L-serine from a solution containing same | Shoichiro Miyahara, Toshio Matsumoto, Tooru Miyahara, Akio Sakaguchi | 1988-03-22 |
| 4733010 | Method of separating monohydrate of L-cysteine hydrochloride | Shyoichiro Miyahara, Toshiaki Kamiguchi, Tadashi Hashimukai | 1988-03-22 |
| 4418018 | Process for the production of 2,3-dichloropropionitrile | Kazuyuki Kuroda, Riyoiti Ikematsu | 1983-11-29 |