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NAGAYAMA MASASHI

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    220,509
About

NAGAYAMA MASASHI has a total of 11 patent applications. Its first patent ever was published in 2007. It filed its patents most often in United States. Its main competitors in its focus markets optics are ZHONGSHAN DIMAI PRINT TECH CO LTD, HIRAOKA H I KENKYUSHO KK and SUGIMOTO NAOMI.

Patent filings in countries

World map showing NAGAYAMA MASASHIs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing NAGAYAMA MASASHIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Electrography

Top inventors

# Name Total Patents
#1 Nagayama Masashi 11
#2 Yamada Saori 5
#3 Aoki Mitsuo 4
#4 Iwatsuki Hitoshi 3
#5 Kondou Tomio 3
#6 Takii Mariko 3
#7 Nakajima Hisashi 3
#8 Yagi Shinichiro 3
#9 Yaguchi Shigenori 2
#10 Santo Hideyuki 2

Latest patents

Publication Filing date Title
US2017185000A1 Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge
US2008213684A1 Carrier for electrophotographic developer, developer, image forming method, image forming apparatus, and process cartridge
US2008152393A1 Carrier for electrophotographic developer, image forming method, and process cartridge