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RIKA KOGYO KK

Overview
  • Total Patents
    142
About

RIKA KOGYO KK has a total of 142 patent applications. Its first patent ever was published in 1977. It filed its patents most often in Japan. Its main competitors in its focus markets machines, control and audio-visual technology are DORN DEMAG CORP VAN, SUMITOMO SHI DEMAG PLASTICS MA and OTTO MAENNER GMBH.

Patent filings in countries

World map showing RIKA KOGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 142

Patent filings per year

Chart showing RIKA KOGYO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koyama Noriaki 24
#2 Sugihara Yoshiro 20
#3 Sakakura Koichi 15
#4 Ito Sadao 14
#5 Morinaka Ippei 13
#6 Takahashi Kiyoshi 12
#7 Yoshimoto Chukichi 11
#8 Miyaki Toshihisa 11
#9 Shimada Masashi 11
#10 Yoshino Ko 11

Latest patents

Publication Filing date Title
JP2001129323A Bathtub water circulating filter apparatus
JP2000052396A Device and method for controlling injection molding
JP2000047703A Time proportional type control apparatus
JPH11299952A Water-running pool
JPH1157097A Water stream pool
JPH1165605A Controller
JPH1120005A Discharge amount measuring apparatus and discharge amount controller for extrusion molding machine
JPH10333702A Controller device
JPH10317210A Swimsuit for child for practicing swimming
JPH10300607A Pressure sensor
JPH10275002A Control unit
JPH10240304A Controller
JPH10189464A Cascade controller in semiconductor manufacturing apparatus
JPH10166411A Injection molding control apparatus and control method
JPH10116102A Control constant calculating method
JPH10105201A Pid controller
JPH1096660A Capacitive level-measuring apparatus
JPH1069301A Pid regulator
JPH1038627A Plug-in type meter
JPH1032390A Waterproof structure for instrument housing