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NAMIKAWA YASUYUKI

Overview
  • Total Patents
    28
About

NAMIKAWA YASUYUKI has a total of 28 patent applications. Its first patent ever was published in 1990. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are SHAANXI ZHONGSHENG CONSTRUCTION INVEST MAN CO LTD, KYOUWA DEVICE KK and GL ASTRONOM OBSERVAT.

Patent filings in countries

World map showing NAMIKAWA YASUYUKIs patent filings in countries
# Country Total Patents
#1 Japan 28

Patent filings per year

Chart showing NAMIKAWA YASUYUKIs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Namikawa Yasuyuki 28

Latest patents

Publication Filing date Title
JPH09129389A L surge countermeasure in stepwise light control using inverter lighting circuit of fluorescent lamp
JPH08190987A Example of surge absorption of l-load in pole changing time, in the case of dc lighting of fluorescent lamp, and electronic conversion of pole changing device
JPH08153593A Eluorescent lamp lighting device
JPH0888091A Flickerless lighting circuit by one fluorescent lamp employing inverter circuit
JPH07296979A Inverter circuit for fluorescent lamp
JPH07282983A Flickerless ac inverter lighting circuit for fluorescent lamp in double spot system
JPH073275A Fuel additive for internal combustion engine
JPH06140183A Light control device applying dc lighting circuit for fluorescent lamp
JPH05303997A Dc lighting of inverter type lighting circuit
JPH0676976A Dc lighting with inverter lighting circuit
JPH05326178A Dc lighting of inverter type lighting circuit
JPH05303998A Dc lighting of inverter lighting circuit
JPH07263171A Light modulating device of fluorescent lamp
JPH08171994A Construction associated with direct current lighting circuit of fluorescent lamp
JPH08162276A Polarity converting apparatus in d.c. lighting of fluorescent lamp
JPH076881A Flickerless lighting circuit by double-spot system in ac lighting for fluorescent lamp
JPH08171993A Direct current lighting of fluorescent lamp
JPH08190988A Double spot type dc lighting of inverter type lighting circuit
JPH08167482A Double-spot method by dc lighting of fluorescent lamp
JPH08195286A Double spot system in dc lighting of fluorescent lamp