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YAMAKAWA CHEMICAL IND

Overview
  • Total Patents
    50
About

YAMAKAWA CHEMICAL IND has a total of 50 patent applications. Its first patent ever was published in 1979. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets organic fine chemistry, environmental technology and textiles and paper are GUANGDONG RAFFLES PHARMATECH CO LTD, SICHUAN QINGMU PHARMACEUTICAL CO LTD and NANJING HONGSHAN BIOTECHNOLOGY CO LTD.

Patent filings in countries

World map showing YAMAKAWA CHEMICAL INDs patent filings in countries

Patent filings per year

Chart showing YAMAKAWA CHEMICAL INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nohira Hiroyuki 25
#2 Sakai Kenichi 16
#3 Murakami Naomichi 11
#4 Nakamura Shinichi 8
#5 Takebayashi Akiko 8
#6 Taira Shinichi 6
#7 Yamada Yoko 5
#8 Tobiyama Tadashi 5
#9 Yuzawa Atsushi 4
#10 Hatahira Iku 4

Latest patents

Publication Filing date Title
JP2011012032A Method for producing optically active 3-aminopiperidine and production intermediate
US2006063943A1 Process for preparing optically active 3-(methylamino)-1-(2-thienyl) propan-1-ol and intermediates for preparation
JP2005104874A METHOD FOR MANUFACTURING OPTICALLY ACTIVE alpha-AMINO-epsilon-CAPROLACTAM OR ITS SALT AND MANUFACTURING INTERMEDIATE
JP2005060231A Method for producing new acidic optical resolving agent and optical resolution of amines using the same
JP2004123596A Method for producing optically active 3-(methylamino)-1-(2-thienyl)propane-1-ol and production intermediate
JP2001072644A Production of optically active 2-chloromandelic acid and production intermediate
JP2000297066A PRODUCTION OF OPTICALLY ACTIVE alpha-METHYLBENZYLAMINE
US6310242B1 Process for preparing D-alloisoleucine and intermediates for preparation
US6342636B1 Process for preparing optically active amines and optically active carboxylic acids, and intermediates for preparation
JP2000128840A Production of cis-2-aminocyclohexanecarboxylic acid and cis-2-benzamidecyclohexanecarboxylic acid
JPH11322684A Isomerization of amino acid
JPH11228512A Production of d-alloisoleucine and intermediate therefor
US5792869A Process for preparing optically active piperazine derivatives and Intermediates for preparation
JPH0948762A Production of optically active piperazine derivative and its production intermediate
JPH08183779A Production of optically active piperazine derivative and intermediate for production
JPH07101951A Optically active compound, its production and liquid crystal composition containing the same and liquid crystal element
JPH0648983A Optically active compound, its production and liquid crystal composition and liquid crystal element containing the same compound
JPH06107584A Optically active compound, its production and liquid crystal composition containing the same and liquid crystal element
JPH061757A Production of optically active alpha-methylbenzylamine
JPH05320102A Production of optically active alpha-(p-chlorophenyl) ethylamine and optically active alpha-(p-chlorophenyl) ethylamine-p-chloromandelic acid salt