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NAKAGAWA KAZUO

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    240,152
About

NAKAGAWA KAZUO has a total of 14 patent applications. Its first patent ever was published in 1990. It filed its patents most often in Japan and United States. Its main competitors in its focus markets optics, audio-visual technology and semiconductors are NAGASHIMA MICHIYOSHI, YUMIKI NAOTO and ERA KAZUNARI.

Patent filings in countries

World map showing NAKAGAWA KAZUOs patent filings in countries
# Country Total Patents
#1 Japan 10
#2 United States 4

Patent filings per year

Chart showing NAKAGAWA KAZUOs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Audio-visual technology
#3 Semiconductors

Top inventors

# Name Total Patents
#1 Nakagawa Kazuo 14
#2 Fukushima Yasumori 1
#3 Koyakata Mikio 1
#4 Takafuji Yutaka 1
#5 Tomiyasu Kazuhide 1
#6 Takei Michiko 1
#7 Matsumoto Shin 1
#8 Tada Kenshi 1

Latest patents

Publication Filing date Title
JP2005313581A Method for anti-adhesion/flocculation of ready-mixed concrete calcium
JP2004270670A Gravity-rotating device utilizing spherical body
JPH10110669A Gravitational rotation device adopting spherical body
JPH07197879A Gravity rotation device
JPH0735028A Gravitational rotating device
JPH06299949A Gravitational rotating device
JPH06299947A Gravitational rotating device
JPH06299948A Gravitational rotating device
JPH06272661A Gravitational rotary device
JPH0427771A Perpetual mobile