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CHIYODA KOHAN CO LTD

Overview
  • Total Patents
    47
  • GoodIP Patent Rank
    194,882
  • Filing trend
    ⇩ 100.0%
About

CHIYODA KOHAN CO LTD has a total of 47 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1997. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets environmental technology, chemical engineering and medical technology are PEREZ MONSRREAL JOSE ROGELIO, ZHENGZHOU BIXING ENVIRONMENTAL PROTECTION TECH CO LTD and ACCIONA AGUA S A.

Patent filings in countries

World map showing CHIYODA KOHAN CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 42
#2 United States 2
#3 WIPO (World Intellectual Property Organization) 2
#4 Taiwan 1

Patent filings per year

Chart showing CHIYODA KOHAN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Deguchi Kenichiro 28
#2 Ishida Koji 20
#3 Yamaguchi Satoshi 14
#4 Fujii Takashi 10
#5 Uragami Itsuo 10
#6 Yoshikawa Masaki 9
#7 Shirashima Kazuyoshi 9
#8 Noguchi Takeshi 7
#9 Nakagaki Hiroshi 7
#10 Nakamura Toshio 5

Latest patents

Publication Filing date Title
WO2018003830A1 Uv irradiation apparatus
JP2018122044A Air bubble stirring type ultraviolet irradiation method and device
JP2017083241A Ultraviolet transmittance measuring method and device of liquid to be treated
JP2017083183A Performance check method of uv ray irradiation device, reference uv ray irradiation device, uv ray irradiation device system, and reference uv ray irradiation device system
US2016046507A1 Ultraviolet irradiation apparatus
JP2014057964A Ultraviolet irradiation apparatus
JP2015058379A Assembly structure of ultraviolet ray lamp and protective tube
JP2014061483A Intermediate pressure outer irradiation type ultraviolet lamp and microorganism inactivation device for ballast water
JP2013220363A External illumination type ultraviolet irradiation apparatus
JP2013158717A Ultraviolet irradiation device
JP2013103180A Ultraviolet irradiation device
JP2013091030A Ultraviolet irradiation device
JP2011050828A Ultraviolet irradiation device
JP2009238462A Low pressure mercury discharge lamp
JP2009203094A Silica glass tube having high ultraviolet transmission, manufacturing method thereof and ultraviolet lamp using the same
JP2009112930A Ultraviolet water treatment apparatus
JP2009082774A Ultraviolet water treatment system, and ultraviolet water treatment device and remote monitoring device used for this system
JP2007245154A Ultraviolet irradiation device
JP2008226719A Electromagnetic wave shielding for ih cooker
JP2007155546A Ultraviolet illuminance measuring device and ultraviolet radiation device