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NIPPON SEIMITSU KEISOKU KK

Overview
  • Total Patents
    33
About

NIPPON SEIMITSU KEISOKU KK has a total of 33 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets measurement and environmental technology are UNIV KAO YUAN, STASZIC KOPALNIA WEGLA KAMIENN and SHINEI DENSHI KEISOKKI KK.

Patent filings in countries

World map showing NIPPON SEIMITSU KEISOKU KKs patent filings in countries
# Country Total Patents
#1 Japan 33

Patent filings per year

Chart showing NIPPON SEIMITSU KEISOKU KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Fukao Isao 24
#2 Hayashi Isamu 16
#3 Asai Hirobumi 5
#4 Kamiya Kenshiyou 2
#5 Yamashita Kazuhisa 2
#6 Kadoma Kimio 2
#7 Kodera Kiyoshi 1
#8 Rokuroda Takeshi 1
#9 Maekawa Mitsuaki 1

Latest patents

Publication Filing date Title
JPH04337930A Signal injecting method for power line carrier
JPH02273100A Rotary cvcf power source
JPH01278241A Power source system switching system
JPH01238432A Preventive motion method of reverse current and reverse voltage of ac generator and generating system
JPH01157229A Service power controlling system
JPH01157228A Power-saving and regulated voltage feed system
JPH01144323A Voltage drop device
JPH01103162A Waveform controller
JPH01102907A Waveform control apparatus
JPH0196912A Unsaturated transformer
JPH0199436A Step-down device
JPH01157230A Parallel operation of ac generator
JPS6477428A Power generation equipment
JPS6469231A Midnight power storage type power-supply system
JPS62293995A Induction generating apparatus
JPS62281724A Apparatus for safe operation of induction generator
JPS62268340A Induction-synchronous motor
JPS62262641A Winding-type brushless induction-synchronous generator
JPS62247743A Wound-rotor induction-synchronous
JPS62244219A Safe driving of induction generator