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SEIKO OPTICAL PRODUCTS CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    224,772
About

SEIKO OPTICAL PRODUCTS CO LTD has a total of 12 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, Germany and United States. Its main competitors in its focus markets optics and machine tools are LUNETIERS COTTET POICHET TAGNO, RAPHAELS LTD and WERNICKE & CO KG.

Patent filings in countries

World map showing SEIKO OPTICAL PRODUCTS CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 10
#2 Germany 1
#3 United States 1

Patent filings per year

Chart showing SEIKO OPTICAL PRODUCTS CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machine tools

Focus technologies

# Technology
#1 Spectacles
#2 Grinding or polishing devices

Top inventors

# Name Total Patents
#1 Tsujimoto Tsutomu 5
#2 Shirayanagi Moriyasu 3
#3 Hoshino Tadashi 1
#4 Numao Takashi 1
#5 Fujii Hiroaki 1
#6 Tomita Hitoshi 1
#7 Tohara Takashi 1
#8 Takahashi Hisashi 1
#9 Iesato Kenji 1
#10 Kurahashi Hajime 1

Latest patents

Publication Filing date Title
JP2020187285A Binocular magnifier and designing method thereof
JP2017191134A Spectacles frame
JP2010224080A Measuring instrument for forward tilting angle of eye glasses and measuring method for forward tilting angle of eye glasses
JP2008241849A Rim of eyeglasses frame
JP2007105089A Method for displaying clear vision region of spectacle lens, device for displaying clear vision region of spectacle lens, and recording medium having clear vision region display program for spectacle lens stored therein
JP2005107396A Spectacle frame for reverse-surface reflection prevention
JP2004029541A Device for comparing optical distortion of spectacle lens
JP2003295130A Method of assembling and adjusting spectacle frame and lens
JP2002139706A Spectacle frame
JP2002116417A Method for adjusting rim curve of spectacle frame