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RYOKUSEISHA KK

Overview
  • Total Patents
    36
About

RYOKUSEISHA KK has a total of 36 patent applications. Its first patent ever was published in 1961. It filed its patents most often in Japan, United Kingdom and China. Its main competitors in its focus markets environmental technology, engines, pumps and turbines and measurement are JING HONGMING, 2ND ARTILLERY ENG COLLEGE PLA and GE HONGSHAN.

Patent filings in countries

World map showing RYOKUSEISHA KKs patent filings in countries
# Country Total Patents
#1 Japan 30
#2 United Kingdom 2
#3 China 1
#4 Spain 1
#5 France 1
#6 United States 1

Patent filings per year

Chart showing RYOKUSEISHA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kajiwara Katsumasa 9
#2 Okazaki Kenji 6
#3 Nomoto Yukio 4
#4 Akane Toshiro 4
#5 Nagashima Satoru 4
#6 Izumi Hideaki 3
#7 Yamazaki Tetsuo 3
#8 Ishii Takeshi 3
#9 Kondo Nobuo 2
#10 Sekida Kinji 2

Latest patents

Publication Filing date Title
JP2008228710A Call response system of radio buoy and method therefor
JP2008184050A Approach system to buoy of ship and its method
JP2005153876A Radio buoy
JP2004123076A Antenna for radio buoy
JP2004048173A Selective call buoy with theft preventing device
JP2004033122A Device for alarming escape of fish bank
JP2003252286A Light beacon storage box
JP2003252285A Floating body type light beacon
JP2003237688A Light beacon
JP2003003943A Wave activated power generator
JP2002284083A Lighted buoy
JPH1111378A Synchronous flash device for marker lamp
JPH10246171A Wave-activated generating device
JPH09305900A Device for detecting data of lighted buoy
JPH05188130A Position measurement information transmission apparatus
JPH04318489A Encoding and transmitting method for fish detection image information
JPS63280400A Display device for on-water indicator
JPS63176670A Wave power generation set and method therefor
JPS63138500A Communication system for measuring buoy
JPS63120529A Automatic switch device for radio transmitter