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KOSHIN KOGAKU KK

Overview
  • Total Patents
    15
About

KOSHIN KOGAKU KK has a total of 15 patent applications. Its first patent ever was published in 1985. It filed its patents most often in Japan. Its main competitors in its focus markets optics are OPT KIKAKU KAIHATSU KK, VTRON TECHNOLOGIES CO LTD and QIMEI ELECTRONICS CO LTD.

Patent filings in countries

World map showing KOSHIN KOGAKU KKs patent filings in countries
# Country Total Patents
#1 Japan 15

Patent filings per year

Chart showing KOSHIN KOGAKU KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Nonlinear optics

Top inventors

# Name Total Patents
#1 Takahashi Haruo 12
#2 Morimura Hiroyuki 6
#3 Suganuma Kokichi 3
#4 Yanagisawa Shoji 2
#5 Endo Takashi 2
#6 Yamaguchi Akira 2
#7 Matsumoto Yuzo 2
#8 Yagishita Akihisa 2

Latest patents

Publication Filing date Title
JPH10197840A Method for controlling polarization and device therefor
JPH1030171A Electron beam vacuum depositing device
JPH0933719A Method and device for producing multilayered dielectric film filter
JPH08321663A Operating method of external resonance wavelength variable semiconductor laser
JPH08288931A Optical tunable filter
JPH08288932A Peak transmitted wavelength retrieval device for optical tunable filter
JPH08114756A Variable wavelength notch filter device
JPH08110487A Variable wavelength filter device
JPH06237050A Variable wavelength semiconductor laser
JPH07198935A Selecting method of temperature coefficient for wavelength shift of multilayer film filter and multilayer film filter having almost zero temperature coefficient of wavelength shift
JPH06326382A External resonance semiconductor laser
JPH06208022A Solid etalon
JPH0621549A Semiconductor laser capable of changing wavelength and external resonance unit
JPH05127018A Strain removing method for substrate subjected to vapor deposition and filter
JPS6222034A Interference filter spectral device