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NAITSU KK

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    226,377
About

NAITSU KK has a total of 18 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan and United States. Its main competitors in its focus markets medical technology are CAMBRIDGE ENDOSCOPIC DEVICES, KLEPACH NIKOLAJ STEPANOVICH and PRECISE LIGHT SURGICAL INC.

Patent filings in countries

World map showing NAITSU KKs patent filings in countries
# Country Total Patents
#1 Japan 17
#2 United States 1

Patent filings per year

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

Focus industries

# Industry
#1 Medical technology

Focus technologies

# Technology
#1 Diagnosis and surgery

Top inventors

# Name Total Patents
#1 Nagayama Mitsuhiro 10
#2 Suzuki Minoru 4
#3 Munakata Natsuki 4
#4 Hayakawa Tetsuo 3
#5 Taguchi Toshiyuki 3
#6 Ohashi Seiichi 3
#7 Kaneda Hiroshi 2
#8 Iwagami Kazuhiro 2
#9 Ito Michiyo 2
#10 Honma Iwao 2

Latest patents

Publication Filing date Title
JP2019184805A Binocular loupe and binocular loupe device
JP2006025087A Magnification reading instrument
JP2004336229A Magnification reading device
JP2004236727A Observation device for meibomian glands
JP2002204783A Visual acuity examining system for near vision
JP2000287925A Eidoptometric apparatus
JP2000040151A Magnification display device
JPH10311953A Enlarging display device
JPH10274591A Transparent object magnifying observation device
JPH08299276A Diaphanoscopic image observation apparatus
JPH06114005A Color vision inspector
JPH05300522A Magnifying display device
JPH05107108A Measuring method of refracting power of contact lens
JPH0431733A Method and apparatus for simultaneously measuring base curve and center thickness of contact lens
US4810083A Binocular indirect ophthalmoscope
JPS6365841A Pattern display method and apparatus in sight examination of infant
JPS55122527A Device for inspecting dyschromatopsia
JPS5241539A Illuminator for use in a slit microscope