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K CORP

Overview
  • Total Patents
    14
About

K CORP has a total of 14 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan. Its main competitors in its focus markets optics are JIANGSU HONSUN OPTOELECTRONIC TECH CO LTD, J R L and TAKEUCHI KOGAKU KOGYO KK.

Patent filings in countries

World map showing K CORPs patent filings in countries
# Country Total Patents
#1 Japan 14

Patent filings per year

Chart showing K CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Spectacles

Top inventors

# Name Total Patents
#1 Takeuchi Kunio 13
#2 Kuraya Seiji 1

Latest patents

Publication Filing date Title
JP2006204731A Golf club
JPH02140719A Light emitting and absorbing liquid crystal lens
JPS63135902A Polarizing plate with multicoat
JPS62209413A Glasses for computer and special sunglasses
JPS62134834A Memory device
JPS62111232A Special lens for glasses and glasses therewith
JPS63118123A Glaring-proof plate
JPS61172116A Special lens for spectacles and spectacles mounted therewith
JPS61172115A Special lens for spectacles and spectacles mounted therewith
JPS61148422A Special lens for spectacles and spectacles mounted with said lens
JPS61148421A Special lens and spectacles for computer vdt operation
JPS61105524A Special lens for glasses and glasses therewith
JPS61103121A Special contact lens using polarizer
JPS61103120A Special lens and spectacle for computer vdt operation