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KATAYAMA TAKESHI

Overview
  • Total Patents
    21
About

KATAYAMA TAKESHI has a total of 21 patent applications. Its first patent ever was published in 1976. It filed its patents most often in United States and Japan. Its main competitors in its focus markets audio-visual technology, computer technology and optics are SHANGHAI QUANTUDOU CULTURE COMMUNICATION CO LTD, ITO AKIO and INSCAPE DATA INC.

Patent filings in countries

World map showing KATAYAMA TAKESHIs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Japan 10

Patent filings per year

Chart showing KATAYAMA TAKESHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Katayama Takeshi 21
#2 Teraue Eiji 4
#3 Hashimoto Masamitsu 1
#4 Iga Junko 1
#5 Kemi Hirotoshi 1
#6 Ikeda Miyuki 1
#7 Saito Hideharu 1
#8 Uchida Eiichi 1
#9 Niwano Hiroyuki 1

Latest patents

Publication Filing date Title
JP2003096761A Metal earth embedded method approaching ground water area and carbon bar earth formation embedded method
JP2001265860A Travel reservation management system
JP2001192694A Device for reducing oxidation value of frying oil
JP2000144712A Metallic-earth burying construction method reaching groundwater area and carbon-rod earth
JP2000054371A Construction of building foundation by embedding pulverized coal
JPH0961044A Anti-freezing refrigerator in ice temperature zone
JPH08285433A In-chamber five-side face cold heat accumulation type refrigerator
JPS61253090A Knife
JPS6027433A Production of clip
JPS52130186A Medical cooler