Learn more

KOONAN KK

Overview
  • Total Patents
    34
About

KOONAN KK has a total of 34 patent applications. Its first patent ever was published in 1990. It filed its patents most often in Japan. Its main competitors in its focus markets measurement and medical technology are KURT SCHWABE INST FUER MES UND, ASTHMA ALERT LTD and SOFTEX CO LTD.

Patent filings in countries

World map showing KOONAN KKs patent filings in countries
# Country Total Patents
#1 Japan 34

Patent filings per year

Chart showing KOONAN KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kasahara Tatsuya 13
#2 Abe Kuniomi 11
#3 Hamada Yoichi 10
#4 Kishi Kiyuuichi 5
#5 Ito Koichi 3
#6 Murakawa Masashi 3
#7 Konagaya Masahiko 3
#8 Takahashi Yoko 2
#9 Ikegami Hideji 2
#10 Ishibe Hiroshi 2

Latest patents

Publication Filing date Title
JP2000139843A Eye fundus photographing device
JP2000107128A Ophthalmic device, and opening/closing means for its opening
JP2000023920A Ophthalmic device
JP2000083902A Eyeball photographing device
JP2000041947A Fundsus photography instrument
JP2000041948A Fundus photography instrument
JP2000037350A Preliminary alignment structure of ophthalmometer
JP2000033096A Observation device for corner for transplantation
JP2000009699A Inspection apparatus for small diameter tube
JPH11304771A Surveying device for small-diameter tube
JPH11299738A Eyeground photographing device
JPH11243504A Video signal generator
JPH11225958A Chin rest device for ophthalmologic instrument and ophthalmogic instrument
JPH11169350A Ophthalmoscope
JPH11146864A Localization instrument for ophthalmologic instrument and localization instrument for ophthalmophotograph
JPH11123176A Eyeball photographing device
JPH06274600A Cornea endothelium form calculating method
JPH06165759A Apparatus for fixing goggle for photographing eye ball on face in apparatus for analysis of eye ball movement
JPH06160727A Eyeball microscope
JPH06142046A Endothelium camera anterioris cell imaging apparatus