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SAKAMOTO MASARU

Overview
  • Total Patents
    11
About

SAKAMOTO MASARU has a total of 11 patent applications. Its first patent ever was published in 1974. It filed its patents most often in United States and Japan. Its main competitors in its focus markets optics, audio-visual technology and machines are STRATOS INT INC, HARTING ELEKTROOPTISCHE BAUTEILE GMBH & CO KG and SHENZHEN FIBERCAN OPTICAL CO LTD.

Patent filings in countries

World map showing SAKAMOTO MASARUs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Japan 4

Patent filings per year

Chart showing SAKAMOTO MASARUs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Sakamoto Masaru 7
#2 Iio Hideo 4
#3 Nurishi Ryuji 1

Latest patents

Publication Filing date Title
US2012224270A1 Zoom lens and image pickup apparatus having the same
JPS58157866A Water paint for three dimensional drawing
JPS57179236A Particular raw material
JPS57164782A Special plastic material