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DAIICHI SEIYAKU COMPANY LTD

Overview
  • Total Patents
    44
About

DAIICHI SEIYAKU COMPANY LTD has a total of 44 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United Kingdom, Switzerland and Austria. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and biotechnology are HUAZHONG PHARMACEUTICAL CO LTD, HEFEI JIUNUO MEDICAL TECHNOLOGY CO LTD and MANNICH CARL PROF DR.

Patent filings in countries

World map showing DAIICHI SEIYAKU COMPANY LTDs patent filings in countries

Patent filings per year

Chart showing DAIICHI SEIYAKU COMPANY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Takeo Naito 4
#2 Naito Takeo 4
#3 Inagaki Masahiro 2
#4 Moroi Reimei 2
#5 Shimizu Masao 2
#6 Atsuji Okano 2
#7 Kazuo Asano 2
#8 Fumiyoshi Ishikawa 2
#9 Katsujiro Ueno 2
#10 Masao Shimizu 2

Latest patents

Publication Filing date Title
US4221723A Method of preparing comenic acid
US3876799A Pantetheine-s-sulfonic acid derivatives for promoting the growth of bi bifidum in infants
CH513150A 5-hydroxy-2-carboxy-pyrone (comeric acid) - prepn by heating 2,5-diketo-gluconic acid
GB1202120A A method of preparing comenic acid
GB1124619A Process for optical resolution of calcium pantothenate
GB1115887A A substituted 3-pyrazoline-5-one and a 5-alkoxy derivative thereof
US3332941A 17-ether compounds of 17beta-hydroxy-5alpha-androstano[2, 3-c] furazan
GB1049964A 17-ether compounds of 17ª‰-hydroxy-5ª‡-androstano [2,3-c] furazan
GB1100295A Cosmetic preparations for hair-nourishing or hair-growing
IE28942L Trans - 4 - aminomethylcyclohexane - 1 - carboxylic acid
US3313820A 2-methyl-3-hydroxy-5-cyanopyridine-1-oxide and corresponding 1-alkoxy pryidinium alkyl sulfate salt
CA877973A Process for optical resolution of o-acetylpantolactone
CA915695A Method of preparing comenic acid and derivatives thereof
CA788998A 17-ETHER COMPOUNDS OF 17.beta.-HYDROXY-5.alpha.-ANDROSTANO (2,3-C) FURAZAN