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HAMAO UMEZAWA

Overview
  • Total Patents
    14
About

HAMAO UMEZAWA has a total of 14 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets machines, biotechnology and organic fine chemistry are KATSUNUMA NOBUHIKO, KYOWA HAKKO KOGYO COMPANY LTD and MURAO SAWAO.

Patent filings in countries

World map showing HAMAO UMEZAWAs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Germany 2
#3 United Kingdom 2

Patent filings per year

Chart showing HAMAO UMEZAWAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Umezawa Hamao 8
#2 Maeda Kenji 5
#3 Takeuchi Tomio 4
#4 Hamao Umezawa 3
#5 Okami Yoshiro 3
#6 Hamada Masa 2
#7 Ueda Masahiro 2
#8 Ishizuka Masaaki 1
#9 Masa Hamada 1
#10 Nagatsu Toshiharu 1

Latest patents

Publication Filing date Title
US3663700A Therapeutic hypotensive compositions comprising calcium salts of 5-alkylpicolinic acids
US3565988A Antibiotic
US3595954A Antibiotic macromomycin and process for making same
US3428730A Antibacterial mixture of o-carbamyl-d-serine and d-4-amino-3-isoxazolidone
US3655877A Plurallin and production thereof
US3316148A Enomycin and process for preparation
GB891534A Kanamycin b and its isolation from a fermentation broth
US2931798A Kanamycin and processes for the preparation thereof
GB817385A Process for the production of an antibiotic designated kanamycin