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TOKINA OPTICAL

Overview
  • Total Patents
    49
About

TOKINA OPTICAL has a total of 49 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan and United States. Its main competitors in its focus markets optics, measurement and audio-visual technology are TAYLOR TAYLOR & HOBSON LTD, GORDON HENRY COOK and Shantou high-tech zone aoxing optical communication equipment co ltd.

Patent filings in countries

World map showing TOKINA OPTICALs patent filings in countries
# Country Total Patents
#1 Japan 46
#2 United States 3

Patent filings per year

Chart showing TOKINA OPTICALs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Tai Masakuni 10
#2 Abe Tomonori 7
#3 Kawaguchi Isao 6
#4 Katsura Shinichi 4
#5 Hasegawa Takami 3
#6 Okajima Taketoshi 3
#7 Takabayashi Kinji 3
#8 Nakada Osamu 3
#9 Ozeki Banri 3
#10 Yamashita Yoshimi 2

Latest patents

Publication Filing date Title
JPH02181716A Zoom lens for compact camera
JPH0227313A Visual field variable device using wide visual field magnifying objective lens
JPS63261966A Image pickup method
JPS62220915A Two-group zoom lens
JPS6266775A Electronic camera
JPS6266785A Image processing system
JPS6227712A Telephoto zoom lens
JPS6215516A Collimator lens
JPS629311A Compact zoom lens consisting of three lens groups
JPS61284721A Telephoto zoom lens
JPS61256207A Relative length measuring apparatus of object on monitor screen
JPS61254914A Wide-angle lens for monitor tv
JPS61215513A Telephoto lens
JPS61147240A Interchangeable lens equipped with changeover contact for plural cameras
JPS6191612A Objective for optical disk
JPS60207980A Method and device for fetching picture
JPS60175020A Compact high-power zoom lens
JPS6086415A Method for measuring fine displacement on surface of sample
JPS6082802A Method for measuring minute displacement of sample surface
JPS604934A Set position stopping device of lens system for variable power copying machine