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COSINA CO

Overview
  • Total Patents
    158
  • GoodIP Patent Rank
    47,002
  • Filing trend
    ⇧ 66.0%
About

COSINA CO has a total of 158 patent applications. It increased the IP activity by 66.0%. Its first patent ever was published in 1976. It filed its patents most often in Japan, Germany and United States. Its main competitors in its focus markets optics and audio-visual technology are OPTIKOTECHNA SPOLECNOST S R O, MICROVIEW TECH CORP and CHUNG HYUNIN.

Patent filings in countries

World map showing COSINA COs patent filings in countries
# Country Total Patents
#1 Japan 149
#2 Germany 3
#3 United States 3
#4 China 2
#5 Hong Kong 1

Patent filings per year

Chart showing COSINA COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Audio-visual technology

Focus technologies

# Technology
#1 Optical systems
#2 Cameras
#3 Special information storage

Top inventors

# Name Total Patents
#1 Kuroiwa Yohei 15
#2 Sato Kazuhiro 14
#3 Kimura Kazuo 13
#4 Shiokawa Koji 10
#5 Yoshimura Hirobumi 9
#6 Yomogida Yoshihisa 9
#7 Kobayashi Hirobumi 9
#8 Takahashi Tetsuo 8
#9 Mitsui Kenji 8
#10 Osawa Sadamitsu 7

Latest patents

Publication Filing date Title
JP2021009268A Lens device
JP2020190612A Lens diaphragm device
JP2020181021A Click device for lens
JP2020177094A Lens diaphragm device
JP2020134737A Rear cap for mount adapter
JP2020122918A Large-aperture lens
JP2020112622A Lens device adjustment mechanism
JP2020106498A Rotary encoder
JP2020086057A Lens device
JP2020008799A Wide-angle lens device
JP2019128471A Lens device adjustment mechanism
JP2019124842A Lens movement device of projector
JP2019086536A Four-plate type prism device
JP2019056876A Lens cap device
JP2019028404A Optical instrument-purpose angle adjustment device
JP2018105896A Lens device of optical instrument
JP2018105937A Roof prism
JP2018060125A Angle adjuster for optical device
JP2017120317A interchangeable lens
JP2017037118A Lens holding device