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TOKYO OPTICAL

Overview
  • Total Patents
    802
  • GoodIP Patent Rank
    221,274
About

TOKYO OPTICAL has a total of 802 patent applications. Its first patent ever was published in 1961. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets measurement, medical technology and optics are LEICA INC, INDIGO DIABETES N V and GAMBS PAUL FREDERIC M.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Tamaki Hiroshi 60
#2 Nunokawa Kazuo 49
#3 Nishimura Shinichi 40
#4 Yokokura Takashi 37
#5 Takahashi Susumu 37
#6 Ishihara Taketoshi 36
#7 Wada Shinji 35
#8 Kobayashi Katsuhiko 35
#9 Ohtomo Fumio 30
#10 Kimura Kazuaki 28

Latest patents

Publication Filing date Title
JP2019181063A System for measuring and training vision function
JP2015141219A Spectacle
US4996990A Air-puff tonometer
US4818068A Slit apparatus
US5092334A Noncontact type tonometer
US4855875A Light source device for medical apparatus
US4932774A Illuminating system of ophthalmological instrument
US4872460A Noncontact type tonometer
JPS6324106A Measuring instrument for frame shape
JPS6328550A Method and device for grinding lens
JPS63318516A Light intensity uniforming device
JPS63294829A Retinal camera of laser scanning system
JPS63267331A Non-contact type tonometer
JPS63279843A Operating cutter
JPS63281012A Surveying device
JPS63279842A Operating cutter
JPS63279215A Light source device for medical equipment
JPS63279217A Light source device for medical equipment
JPS63279216A Light source device for medical equipment
JPS63279214A Light source device for medical equipment