Inventor
AKUTSU KATSUYUKI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “AKUTSU KATSUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
19 patentsUS8023783B2Sep 20, 2011
Optical device, and virtual image display device
SONY CORP96 citations99
US7747113B2Jun 29, 2010
Optical device and virtual image display device
SONY CORP212 citations99
US7418170B2Aug 26, 2008
Optical device and virtual image display device
SONY CORP338 citations99
US9541762B2Jan 10, 2017
Optical device, and virtual image display
SONY CORP25 citations98
US7502168B2Mar 10, 2009
Optical device and image display apparatus
SONY CORP104 citations98
US8976453B2Mar 10, 2015
Light reflecting member, light beam extension device, image display device, and optical device
SONY CORP27 citations92
US9726890B2Aug 8, 2017
Light beam expanding device, image display device, and optical device
SONY CORP19 citations90
US9164221B2Oct 20, 2015
Light beam expanding device, image display device, and optical device
SONY CORP27 citations90
US9176265B2Nov 3, 2015
Optical device, and virtual image display
SONY CORP6 citations84
US9759920B2Sep 12, 2017
Light reflecting member, light beam extension device, image display device, and optical device
SONY CORP15 citations83
US9279984B2Mar 8, 2016
Image displaying apparatus and optical apparatus
SONY CORP13 citations83
US11061231B2Jul 13, 2021
Optical device and display device
SONY CORP2 citations73
US10025100B2Jul 17, 2018
Optical device and virtual image display
SONY CORP2 citations73
US9383722B2Jul 5, 2016
Optical device and virtual image display
SONY CORP3 citations73
US11073693B2Jul 27, 2021
Optical device, head mounted display, assembling method for the same, holographic diffraction grating, display device, and alignment device
SONY CORP2 citations71
US9335550B2May 10, 2016
Optical device, and virtual image display
SONY CORP1 citations63
US8810878B2Aug 19, 2014
Optical device and virtual image display
SONY CORP1 citations63
US11227519B2Jan 18, 2022
Image projection apparatus, image projection method, image display light output control method by acquiring pupil area or size
SONY CORP0 citations62
US11003212B2May 11, 2021
Image display device, display device, and adjustment method for display device
SONY CORP0 citations52