Inventor · disambiguated record
Toshitake Yamakawa
Also filed as: YAMAKAWA TOSHITAKE
3 granted patents·22 citations·filing 1995–2001
62Inventor score
Top patents by PatentIndex Score
3 records- 0189US5679817AAlkylenediamine-N,N'-disuccinic acid iron (III) complex salts and process for production thereofNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Oct 21, 1997·21 cites·8 claims
- 0242US6515159B2S,S-ethylenediamine-N,N′-disuccinic acid iron alkali salt and a process for production thereofMITSUBISHI RAYON CO·Filed 2001·Granted Feb 4, 2003·0 cites·6 claims
- 0335US6300510B1Iron alkali salt of S,S-ethylenediamine-N,N′-disuccinic acid and process for producing the sameMITSUBISHI RAYON CO·Filed 1997·Granted Oct 9, 2001·1 cites·27 claims
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