P

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 patents
US5571889ANov 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 patents

HITACHI LTD

1 patent