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KOSHIN KOGAKU KOGYO KK

Overview
  • Total Patents
    13
About

KOSHIN KOGAKU KOGYO KK has a total of 13 patent applications. Its first patent ever was published in 1999. It filed its patents most often in Japan. Its main competitors in its focus markets optics are WYTEC HOLDING B V, GALLERT FRANK and GARCIA DIAZ NICOLAS.

Patent filings in countries

World map showing KOSHIN KOGAKU KOGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 13

Patent filings per year

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

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Optical systems

Top inventors

# Name Total Patents
#1 Kobayashi Nobuyuki 2
#2 Yuzunaka Yuji 2
#3 Hiraga Koji 2
#4 Toshiyoshi Hiroshi 2
#5 Koo Hiroshi 2
#6 Kamikawa Takashi 2
#7 Yoshizawa Ryoichi 1
#8 Tamaki Kentaro 1
#9 Usui Yoshitaka 1
#10 Endo Takashi 1

Latest patents

Publication Filing date Title
JP2015011333A Ir cut filter
JP2011118251A Method for manufacturing nd filter and nd filter
JP2006023602A Optical multilayer film bandpass filter
JP2006023601A Multiplex bandpass filter
JP2005242141A Optical waveguide type wavelength filter and wavelength mutiplexer/demultiplexer
JP2005205577A Comb-teeth-shaped actuator and light control element
JP2005205578A Comb-teeth-shaped actuator
JP2004311818A Optical length variable device and laser device
JP2004309896A Collimator lens for optical fiber, and optical coupler
JP2004302243A Optical waveguide chip and optical component including the same
JP2003075629A Multicavity band pass filter and method for manufacturing the same
JP2001296481A Wavelength variable optical branching insertion device
JP2001056439A Variable wavelength notch filter device