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ITOH OPTICAL IND

Overview
  • Total Patents
    36
  • GoodIP Patent Rank
    136,809
  • Filing trend
    ⇩ 75.0%
About

ITOH OPTICAL IND has a total of 36 patent applications. It decreased the IP activity by 75.0%. Its first patent ever was published in 1991. It filed its patents most often in WIPO (World Intellectual Property Organization), EPO (European Patent Office) and United States. Its main competitors in its focus markets optics, machines and macromolecular chemistry and polymers are OTANI NOBORU, SHENZHEN GUANGKE HOLOGRAPHIC TECH CO LTD and NIKON-ESSILOR CO LTD.

Patent filings per year

Chart showing ITOH OPTICAL INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shimizu Takehiro 12
#2 Torii Tadashi 11
#3 Kato Hirohisa 11
#4 Uchida Naoki 10
#5 Murai Sachio 9
#6 Oda Hirofumi 6
#7 Kubo Tomonori 6
#8 Ogino Keisuke 5
#9 Makino Kazuo 5
#10 Yamada Satoshi 5

Latest patents

Publication Filing date Title
US2020165486A1 Hard coating composition
WO2018124063A1 Optical element and production method therefor
WO2018037621A1 Light-modulating optical element
WO2018008179A1 Eyeglass material
WO2018123077A1 Optical element
CN109196407A The design method and vision correction eyeglass of vision correction eyeglass
WO2018078770A1 Photochromic member and method of manufacture therefor
WO2017125999A1 Optical component
EP2829583A1 Hard coating composition
US2015024212A1 Hard coating composition
WO2012157073A1 Surface-treated mold and mold surface treatment method
EP2711741A1 Optical element and manufacturing method thereof
EP1273639A1 Optical element
AU653825B2 Coating composition for optical plastic moldings
WO9207888A1 Organic glass for optical part