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TSUJI KOICHI

Overview
  • Total Patents
    16
About

TSUJI KOICHI has a total of 16 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are MOGILEVSKIJ GENNADIJ V, GALPERIN TEODOR B and SUZHOU ZEYOU TECHNOLOGY CO LTD.

Patent filings in countries

World map showing TSUJI KOICHIs patent filings in countries
# Country Total Patents
#1 Japan 16

Patent filings per year

Chart showing TSUJI KOICHIs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Smart grids

Top inventors

# Name Total Patents
#1 Tsuji Koichi 16
#2 Onishi Hiroshi 2
#3 Kuribayashi Hideyuki 1
#4 Tomimizu Takeshi 1
#5 Yamamoto Tomoko 1
#6 Hosokawa Yoshinori 1

Latest patents

Publication Filing date Title
JP2007097265A Accident localizer for distribution system
JP2006115555A Ground directional relay
JP2006054965A Accident determining device for transmission system
JP2006003109A Fluorescent x-ray analyzer
JP2005124297A Protective device for power grid, and protection relay arrangement using the same
JP2004219275A Accident point spotting method, accident point spotting device using the same, and ground fault protective relay device
JP2002064926A Protective relay for electrical system
JP2001218360A One-line ground protection system for non-grounded system transmission/distribution line
JP2001069154A System contraction for communication line plan
JP2001069043A Communication installation planning method applying lp method
JP2000324694A Method for deciding system operation procedures in power system
JP2000148725A Method for reducing rounding error
JPH11234902A Method for determining constitution of power system radial pattern
JPH10215520A Fault recovery system applied with linear programming
JPH08265957A Matrix operation type system protector
JPH0779524A System protective unit employing matrix operation