Inventor
KAWASUMI TAKEHITO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KAWASUMI TAKEHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
17 patentsUS10564528B2Feb 18, 2020
Image projection apparatus including light modulation elements
CANON KK3 citations73
US10133169B2Nov 20, 2018
Light source optical system and projection display apparatus employing the same
CANON KK4 citations72
US10082731B2Sep 25, 2018
Illumination apparatus and projection display apparatus using the same
CANON KK5 citations72
US11656541B2May 23, 2023
Light source apparatus and image projection apparatus having the same
CANON KK0 citations62
US11754914B2Sep 12, 2023
Light source apparatus and image projection apparatus
CANON KK0 citations61
US10712647B2Jul 14, 2020
Illumination apparatus and image projection apparatus
CANON KK1 citations61
US11006084B2May 11, 2021
Color separation and combination optical system and image projection apparatus having the same
CANON KK0 citations51
US10768518B2Sep 8, 2020
Light source apparatus and image projection apparatus having the same
CANON KK0 citations51
US10073330B2Sep 11, 2018
Illumination apparatus and projection type display apparatus
CANON KK1 citations51
US9921462B2Mar 20, 2018
Light source optical system and projection display apparatus employing the same
CANON KK1 citations51
US9851631B2Dec 26, 2017
Light source optical system and projection display apparatus employing the same
CANON KK1 citations51
US11561461B2Jan 24, 2023
Light source apparatus and image projection apparatus
CANON KK0 citations41
US9389427B2Jul 12, 2016
Optical system and projection display apparatus using the same
CANON KK0 citations41
US10670947B2Jun 2, 2020
Image projection apparatus that projects superimposed images
CANON KK0 citations40
US10015455B2Jul 3, 2018
Optical apparatus and image projection apparatus having multiple reflective light modulators and multiple dichroic surface that separate light into multiple color lights and combines them
CANON KK0 citations40
US9638992B2May 2, 2017
Illumination optical system and image projection apparatus
CANON KK0 citations40
US9436073B2Sep 6, 2016
Illumination optical system and image projection apparatus
CANON KK0 citations40