Toshitake Yamakawa

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Patents Grantslast 30 patents

Information Patent Grant
S,S-ethylenediamine-N,N′-disuccinic acid iron alkali salt a...
- Patent number 6,515,159
- Issue date Feb 4, 2003
- Mitsubishi Rayon Co., Ltd.
- Toshitake Yamakawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Iron alkali salt of S,S-ethylenediamine-N,N′-disuccinic aci...
- Patent number 6,300,510
- Issue date Oct 9, 2001
- Mitsubishi Rayon Co., Ltd.
- Toshitake Yamakawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alkylenediamine-N,N'-disuccinic acid iron (III) complex salts and p...
- Patent number 5,679,817
- Issue date Oct 21, 1997
- Nitto Chemical Industry Co., Ltd.
- Haruo Sakai
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
S, S-ethylenediamine-N, N'-disuccinic acid iron alkali salt and a p...
- Publication number 20020040156
- Publication date Apr 4, 2002
- Mitsubishi Rayon Co., Ltd.
- Toshitake Yamakawa
- C07 - ORGANIC CHEMISTRY