Inventor
KATOH TOSHIO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “KATOH TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
17 patentsUS5571889ANov 5, 1996
Polymer containing monomer units of chemically modified polyaspartic acids or their salts and process for preparing the same
MITSUI TOATSU CHEMICALS25 citations92
US5113009AMay 12, 1992
Preparation and isolation of mineral acid salt of an amino acid methyl ester
MITSUI TOATSU CHEMICALS11 citations73
US4780561AOct 25, 1988
Preparation process of α-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof
MITSUI TOATSU CHEMICALS6 citations73
US4745210AMay 17, 1988
Preparation process of N-formyl-α-aspartyl phenylalanine
MITSUI TOATSU CHEMICALS11 citations73
US4675439AJun 23, 1987
Preparation process of N-acylphenylalanines
MITSUI TOATSU CHEMICALS12 citations73
US4612388ASep 16, 1986
Process for producing N-acylphenylalanines
MITSUI TOATSU CHEMICALS12 citations73
US4962222AOct 9, 1990
Preparation process of α-l-aspartyl-l-phenylalanine methyl ester having low hygroscopicity
MITSUI TOATSU CHEMICALS2 citations62
US4801732AJan 31, 1989
Preparation process of α-L-aspartyl-L-phenylalanine methyl ester
MITSUI TOATSU CHEMICALS3 citations62
US4778916AOct 18, 1988
Preparation process of α-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof
MITSUI TOATSU CHEMICALS2 citations62
US4605759AAug 12, 1986
Process for production of β-phenylserine
MITSUI TOATSU CHEMICALS5 citations62
US5302743AApr 12, 1994
Preparation of N-protected α-L-aspartyl-L-phenylalanine methyl ester
MITSUI TOATSU CHEMICALS1 citations52
US5283357AFeb 1, 1994
Separation method of α-l-aspartyl-l-phenylalanine methyl ester
MITSUI TOATSU CHEMICALS1 citations52
US5206413AApr 27, 1993
Method for preparing α-L-aspartyl-L-phenylalanine methyl ester
MITSUI TOATSU CHEMICALS0 citations52
US4897506AJan 30, 1990
Isolation of alpha-l-aspartyl-l-phenylalanine methyl ester from aqueous medium
MITSUI TOATSU CHEMICALS1 citations52
US4918216AApr 17, 1990
Preparation process of α-l-aspartyl-l-phenyl-alanine methyl ester or hydrohalide thereof
MITSUI TOATSU CHEMICALS1 citations51
US4484003ANov 20, 1984
Preparation process of β-chloroalanine
MITSUI TOATSU CHEMICALS1 citations49
US4453008AJun 5, 1984
Production process of DL-cystein
MITSUI TOATSU CHEMICALS0 citations49
MITSUI CHEMICALS INC
4 patentsUS6346569B1Feb 12, 2002
Production process of cross-linked polysuccinimide resin
MITSUI CHEMICALS INC17 citations92
US6072024AJun 6, 2000
Production process of cross-linked polyaspartic acid resin
MITSUI CHEMICALS INC32 citations92
US5986042ANov 16, 1999
Cross-linked polymer
MITSUI CHEMICALS INC45 citations91
US6657041B1Dec 2, 2003
Production process of polysuccinimide
MITSUI CHEMICALS INC4 citations59