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YAMAMOTO TOHRU

Overview
  • Total Patents
    13
About

YAMAMOTO TOHRU has a total of 13 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets machines, medical technology and chemical engineering are HOCKER CHEMICAL CORP, ARNOLD HOFFMAN & CO INC and KANEBO LTD.

Patent filings in countries

World map showing YAMAMOTO TOHRUs patent filings in countries
# Country Total Patents
#1 United States 8
#2 EPO (European Patent Office) 4
#3 Canada 1

Patent filings per year

Chart showing YAMAMOTO TOHRUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamamoto Tohru 13

Latest patents

Publication Filing date Title
EP0487773A1 Use of a porous polymer as a deodorizing material
CA2030837A1 Deodorant porous polymer and a deodorant fibrous material using the same
US5185169A Deodorant porous polymer and a deodorant fibrous material using the same
US4889876A Composite substance and a method for the production of the same
US4880851A Aromatic composition and method for the production of the same
EP0328715A1 A catalyst for sol-gel method using metal alkoxide and sol-gel method using the same