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SEIKO KOKI KK

Overview
  • Total Patents
    820
About

SEIKO KOKI KK has a total of 820 patent applications. Its first patent ever was published in 1972. It filed its patents most often in Germany, United Kingdom and Japan. Its main competitors in its focus markets optics, measurement and electrical machinery and energy are HATTORI TOKEITEN KK, ALOS A G and ESSOLDOMATIC LTD.

Patent filings in countries

World map showing SEIKO KOKI KKs patent filings in countries
# Country Total Patents
#1 Germany 182
#2 United Kingdom 182
#3 Japan 182
#4 United States 169
#5 France 92
#6 Switzerland 11
#7 Hong Kong 2

Patent filings per year

Chart showing SEIKO KOKI KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kitai Kiyoshi 175
#2 Nagaoka Shinji 120
#3 Nakagawa Tadashi 107
#4 Ogihara Masuo 84
#5 Onda Eiichi 81
#6 Shinozaki Nobuo 66
#7 Koyama Mitsuo 60
#8 Watanabe Masanori 60
#9 Ishida Hiroaki 59
#10 Ogiwara Masuo 58

Latest patents

Publication Filing date Title
JPS6368827A Blade supporting device for divided blade shutter
JPS6321629A Analog to digital conversion circuit for camera
JPS62237434A Exposing device for automatic focusing camera
JPS62200338A Auto-focusing device for camera
JPS62200337A Electromagnetically driven shutter in camera
JPS62200339A Step motor driven shutter in camera
JPS62194239A Shutter controller for camera
JPS62163026A Exposure control device for stroboscopic photographing
JPS62163027A Speed control device for camera shutter driving motor
JPS62163029A Stroboscopic photographing alarming device
JPS62163556A Step motor
JPS62160430A Multiprogrammed shutter
JPS62160429A Multiprogrammed shutter
JPS62135817A Rewinding mechanism of camera incorporating motor drive
JPS62116926A Automatic focus adjusting device for camera
JPS6273243A Automatic focus adjusting device for camera
JPS6270995A Time recorder
JPS6270076A Printer
JPS6270996A Time recorder
JPS6269189A Timepiece