Tokyo
Japan
38
2025-10-30
The entities that hold a legal rights for patent applications filed by inventor Ichikawa Keisuke:
Keisuke Ichikawa from Tokyo, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
OBJECTIVE OPTICAL SYSTEM FOR ENDOSCOPE AND ENDOSCOPE HAVING SAME
#2 | 2023-04-06INFORMATION TERMINAL, MANAGEMENT SERVER, INFORMATION PROCESSING SYSTEM, AND DOWNLOAD OPERATION METHOD
#3 | 2021-08-19Wide-angle optical system and image pickup apparatus using the same
#4 | 2021-08-19Wide-angle optical system and image pickup apparatus using the same
#5 | 2021-08-05Wide-angle optical system including three lens units of −++ refractive powers, and image pickup apparatus using the same
#6 | 2021-06-17WIDE-ANGLE OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS USING THE SAME
#7 | 2019-01-31Single-focus optical system and optical apparatus using the same
#8 | 2018-11-01Single-focus optical system and optical apparatus using the same
#9 | 2018-03-15Single-focus optical system and optical apparatus using the same
#10 | 2018-03-08Single focus optical system and optical apparatus using the same
#11 | 2018-03-08Single-focus optical system and optical apparatus using the same
#12 | 2018-02-22Single-focus optical system and optical apparatus using the same
#13 | 2018-02-22Single focus optical system and optical apparatus using the same
#14 | 2017-06-15Microscope objective
#15 | 2017-04-20Imaging optical system and optical apparatus including the same
#16 | 2017-04-20Imaging optical system and optical apparatus including the same
#17 | 2017-04-20Imaging optical system and optical apparatus including the same
#18 | 2016-10-20Image forming lens system and image pickup apparatus using the same
#19 | 2016-07-14Optical system and optical instrument, image pickup apparatus, and image pickup system using the same
#20 | 2016-05-26Zoom lens and lens barrel and image pickup apparatus using the same
#21 | 2015-12-10Optical system and optical instrument, image pickup apparatus, and image pickup system using the same
#22 | 2015-12-03Zoom lens and image pickup apparatus using the same
#23 | 2015-08-20Image forming optical system and electronic image pickup apparatus using the same
#24 | 2015-05-28Image forming lens system and image pickup apparatus using the same
#25 | 2015-04-16Optical system and optical instrument, image pickup apparatus, and image pickup system using the same
#26 | 2014-12-25Zoom lens and image pickup apparatus using the same
#27 | 2013-06-27Objective optical system and observation apparatus provided with the same
#28 | 2012-03-08Image forming optical system and electronic image pickup apparatus equipped with same
#29 | 2011-12-22Image forming optical system and electronic image pickup apparatus using the same
#30 | 2011-11-03Image forming optical system and electronic image pickup apparatus using the same
#31 | 2011-05-05Image forming optical system and electronic image pickup apparatus equipped with same
#32 | 2009-11-19Three unit zoom lens and image pickup apparatus equipped with same
#33 | 2009-11-19Zoom lens and image pickup apparatus equipped with same
#34 | 2009-11-12Image forming optical system and electronic image pickup apparatus using image forming optical system
#35 | 2009-11-12Image forming optical system and electronic image pickup apparatus using image forming optical system
#36 | 2009-11-12Image forming optical system and electronic image pickup apparatus using image forming optical system
#37 | 2009-08-06Image forming optical system and electronic image pickup apparatus using image forming optical system
#38 | 2009-04-02Compound lens and camera comprising the same
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