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NIHON CONTACT LENS SEIZOU KK

Overview
  • Total Patents
    16
About

NIHON CONTACT LENS SEIZOU KK has a total of 16 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Japan. Its main competitors in its focus markets optics, macromolecular chemistry and polymers and basic materials chemistry are JESSEN INC WESLEY, HOYA LENS CORP and NIKON ESSILOR CO LTD.

Patent filings in countries

World map showing NIHON CONTACT LENS SEIZOU KKs patent filings in countries
# Country Total Patents
#1 Japan 16

Patent filings per year

Chart showing NIHON CONTACT LENS SEIZOU KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mizutani Yutaka 16
#2 Kuriaki Masamitsu 7
#3 Harada Tatsuo 6
#4 Tanahashi Naokatsu 3
#5 Kondou Masamichi 2
#6 Uchida Toshio 2
#7 Morita Etsurou 2
#8 Nozaki Shinji 2
#9 Itou Takao 2
#10 Himi Tatsuo 1

Latest patents

Publication Filing date Title
JPS60232862A Lens polishing device
JPS60159721A Cleaner for contact lens
JPS60131518A Contact lens material
JPS60130714A Material for contact lens
JPS60127961A Lens polishing apparatus
JPS6032022A Contact lens material
JPS59193418A Solution for use in contact lens
JPS58216222A Manufacture of contact lens superior in transparency and hydrophilic property
JPS5858519A Contact lens
JPS5831314A Silicone composition for contact lens
JPS57203440A Treating tool
JPS57189114A Contact lens
JPS57189115A Contact lens
JPS57178217A Contact lens and its manufacture
JPS5799612A Contact lens
JPS5799611A Contact lens