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RICOH KK

Overview
  • Total Patents
    174,829
  • GoodIP Patent Rank
    72,083
  • Filing trend
    ⇩ 66.0%
About

RICOH KK has a total of 174,829 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 1951. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets optics, audio-visual technology and textiles and paper are FERIX CORP, TAKAHASHI MASARU and ITO SAKAE.

Patent filings per year

Chart showing RICOH KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sasaki Masaomi 907
#2 Sekiya Takuro 651
#3 Tomita Masami 645
#4 Shimada Masaru 576
#5 Sato Tsutomu 576
#6 Hashimoto Mitsuru 531
#7 Koyama Hajime 525
#8 Kurotori Tsuneo 517
#9 Murakami Kakuji 515
#10 Katano Yasuo 511

Latest patents

Publication Filing date Title
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EP2259143A1 Electrophotographic photoreceptor, and image forming apparatus and process cartridge therefor using the photoreceptor
JP2010138070A Method for producing crystal of group iii nitride
US2010233602A1 Electrophotographic Photoconductor
WO2010095759A1 Camera body, imaging unit mounted/removed on/from the camera body and imaging apparatus
JP2010118075A Simd type microprocessor
JP2010113376A Toner concentration sensor and image forming apparatus including the same
JP2010114941A Imaging apparatus, program, and method for displaying angle
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JP2010100068A Inkjet recording device and image forming device
JP2010092080A Image forming apparatus