Inventor
MATSUBARA MASAKI
JP35 patents
⚠️ This page may combine multiple inventors who share the name “MATSUBARA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OLYMPUS OPTICAL CO
11 patentsUS4643541AFeb 17, 1987
Optical system for variable inclination angle microscope tubes
OLYMPUS OPTICAL CO17 citations74
US4057328ANov 8, 1977
Enlarging lens system
OLYMPUS OPTICAL CO17 citations74
US4037934AJul 26, 1977
Microscope objective
OLYMPUS OPTICAL CO14 citations74
US3958866AMay 25, 1976
Copying objective lens system
OLYMPUS OPTICAL CO8 citations74
US4439023AMar 27, 1984
Optical system for ophthalmological instruments
OLYMPUS OPTICAL CO12 citations71
US4491394AJan 1, 1985
Image-forming lens system
OLYMPUS OPTICAL CO5 citations63
US4113356ASep 12, 1978
Zoom lens system with high zooming ratio
OLYMPUS OPTICAL CO4 citations63
US4045127AAug 30, 1977
Enlarging lens system
OLYMPUS OPTICAL CO3 citations63
US4013346AMar 22, 1977
Enlarging lens system
OLYMPUS OPTICAL CO6 citations63
US4268128AMay 19, 1981
Ocular of large visual field
OLYMPUS OPTICAL CO6 citations61
US4509838AApr 9, 1985
Optical system for retinal cameras
OLYMPUS OPTICAL CO1 citations49
WACOM CO LTD
7 patentsUS8373683B2Feb 12, 2013
Position input device and computer system
WACOM CO LTD21 citations92
US7005843B2Feb 28, 2006
Position indicator and position detector
WACOM CO LTD17 citations84
US9916029B2Mar 13, 2018
Sensor controller, sensor device including sensor controller, electronic apparatus equipped with sensor device, and application software recovery method
WACOM CO LTD1 citations52
US8963872B2Feb 24, 2015
Position detector, position detecting circuit, and position detecting method
WACOM CO LTD1 citations52
US7528743B2May 5, 2009
Information transmitting device
WACOM CO LTD0 citations52
US7339497B2Mar 4, 2008
Information transmitting device
WACOM CO LTD0 citations52
US7176814B2Feb 13, 2007
Information transmitting device
WACOM CO LTD0 citations52
MATSUBARA MASAKI
5 patentsUS8228312B2Jul 24, 2012
Position detecting device
MATSUBARA MASAKI36 citations92
US8581857B2Nov 12, 2013
Position detecting device and position detecting method
MATSUBARA MASAKI17 citations83
US8587537B2Nov 19, 2013
Position detector, position detecting circuit and position detecting method
MATSUBARA MASAKI4 citations62
US8334852B2Dec 18, 2012
Position detecting device
MATSUBARA MASAKI2 citations62
US8148652B2Apr 3, 2012
Position detecting device and position detecting method
MATSUBARA MASAKI3 citations62
LENOVO SINGAPORE PTE LTD
3 patentsUS9405328B2Aug 2, 2016
Touch pad function modification
LENOVO SINGAPORE PTE LTD2 citations63
US11216093B2Jan 4, 2022
Systems, apparatus, and methods for detecting computing device inputs by a pointing body
LENOVO SINGAPORE PTE LTD2 citations62
US12554291B2Feb 17, 2026
Information processing apparatus and control method
LENOVO SINGAPORE PTE LTD0 citations55