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ASAHI SEIMITSU KK

Overview
  • Total Patents
    282
About

ASAHI SEIMITSU KK has a total of 282 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets optics, audio-visual technology and consumer goods are IMAMURA NORIHIRO, BEIJING ANTVR TECH CO LTD and ADVANCED PERIPHERALS TECHNOLOG.

Patent filings in countries

World map showing ASAHI SEIMITSU KKs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Arai Masayuki 40
#2 Ogasawara Terumi 30
#3 Toga Noriyuki 26
#4 Gibe Yoshitaka 18
#5 Hinuma Masao 17
#6 Kojima Yoichi 15
#7 Shishido Takayasu 15
#8 Udagawa Giichi 12
#9 Kotani Sadahiko 12
#10 Kaneko Kenji 12

Latest patents

Publication Filing date Title
JP2011012540A Passage direction regulating device
JP2011012482A Passage direction regulating device
JP2000091998A Transmission reception integrated optical communication device
JP2000087616A Guard switch
JP2000052264A Wrench
JP2000056225A Optical axis correcting optical system
JP2000036793A Transmission/reception integrated type optical communication equipment
JP2000009981A Lens-barrel caulking device
US6078442A ND filter
JPH11304467A Reference gauge for measuring instrument height of surveying instrument and instrument height measuring method
JPH11304466A Instrument height measuring method for surveying instrument
JPH11248994A End point limit circuit for direct-current motor for lens
JPH11147394A Drawing instrument
JPH11139088A Housing table for scale for drafting machine
JPH11139087A Housing container for longitudinal rail of drawing instrument
JPH11109110A Nd filter
JPH1194552A Right angle collimation level and adapter therefor
JPH10115778A Super-wide angle lens system using aspherical lens
JPH1144803A Zonal nd filter
JPH1144802A Nd filter