Inventor
HIRAMATSU TAKUMA
JP17 patents
⚠️ This page may combine multiple inventors who share the name “HIRAMATSU TAKUMA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
16 patentsUS5880028AMar 9, 1999
Ridge waveguide type distributed feedback semiconductor laser device and method for manufacturing the same
SHARP KK23 citations92
US7099589B1Aug 29, 2006
Space-division multiplex full-duplex local area network
SHARP KK24 citations91
US7295592B2Nov 13, 2007
Light source device and optical communication module employing the device
SHARP KK10 citations82
US11525913B2Dec 13, 2022
Light detection device and electronic apparatus comprising plural SPAD arrays with a photon detection rate controller
SHARP KK2 citations72
US11366205B2Jun 21, 2022
Optical sensor, distance measurement device, and electronic apparatus
SHARP KK4 citations72
US11307293B2Apr 19, 2022
Ranging sensor
SHARP KK3 citations72
US11221410B2Jan 11, 2022
Light sensor, electronic device, computation apparatus, and method for measuring distance between light sensor and sensing object
SHARP KK4 citations72
US10705212B2Jul 7, 2020
Optical sensor and electronic device
SHARP KK2 citations72
US10677648B2Jun 9, 2020
Optical sensor and electronic device
SHARP KK2 citations72
US11112494B2Sep 7, 2021
Photodetector and portable electronic equipment
SHARP KK1 citations62
US11061139B2Jul 13, 2021
Ranging sensor
SHARP KK1 citations62
US10555387B2Feb 4, 2020
Light-emitting element drive circuit and portable electronic instrument
SHARP KK1 citations62
US11415696B2Aug 16, 2022
Optical sensor and electronic device
SHARP KK0 citations51
US11287518B2Mar 29, 2022
Optical sensor and electronic device
SHARP KK0 citations51
US11175387B2Nov 16, 2021
Optical sensor and electronic device
SHARP KK0 citations51
US10509114B2Dec 17, 2019
Photodetection device with synchronous and non-synchronous light detection for reducing noise and electronic apparatus
SHARP KK0 citations39