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RICOH SYSTEMS INC

Overview
  • Total Patents
    14
About

RICOH SYSTEMS INC has a total of 14 patent applications. Its first patent ever was published in 1982. It filed its patents most often in United States, Canada and Japan. Its main competitors in its focus markets optics, packaging and shipping and basic materials chemistry are DOBBERTIN MICHAEL THOMAS, ISHIDA KEI and KINOSHITA KENKYUSHO KK.

Patent filings in countries

World map showing RICOH SYSTEMS INCs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 3
#3 Japan 2

Patent filings per year

Chart showing RICOH SYSTEMS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wurster Herbert K 5
#2 Mayer Edward F 4
#3 Anderson Carl P 3
#4 Kubota Tomio 2
#5 Koelling Alan L 2
#6 Murphy William J 1
#7 Haabaato Kurausu Waasutaa 1
#8 Pfeuffer Donald F 1
#9 Edowaado Efu Meiyaa 1
#10 Van Blerk Victor B 1

Latest patents

Publication Filing date Title
JPS62187352A Electrophotographic photosensitive body
US4710442A Gradient layer panchromatic photoreceptor
US4627702A Wide belt tracking method and apparatus
US4619450A Copying apparatus with automatic bottom feeder
US4595933A Ink liquid supply apparatus
US4580143A Viscosity control of ink-jet inks
CA1252667A Infrared sensitive photoconductor composition
US4572655A Electrophotographic copying apparatus and method of use including electrostatic toner recycling procedure
US4481270A Photoreceptor containing squaric acid methine dyes
US4500621A Sensitive electrophotographic plates containing squaric acid methine dyes suspended in a binder
US4451138A Electrophotographic copying apparatus having an automatic feed arrangement and an end-of-feed sensing assembly