Inventor
HOSHI FUMIKAZU
JP22 patents
⚠️ This page may combine multiple inventors who share the name “HOSHI FUMIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH CO LTD
6 patentsUS9157853B2Oct 13, 2015
Moisture sensor, moisture detector, and image forming apparatus
RICOH CO LTD8 citations84
US9429513B2Aug 30, 2016
Sensor apparatus and image forming apparatus incorporating same
RICOH CO LTD4 citations71
US11215945B2Jan 4, 2022
Optical sensor and image forming apparatus
RICOH CO LTD0 citations62
US10606204B2Mar 31, 2020
Optical sensor and image forming apparatus
RICOH CO LTD0 citations52
US10041927B2Aug 7, 2018
Optical sensor, and devices incorporating the same
RICOH CO LTD0 citations52
US9678006B2Jun 13, 2017
Optical sensor and image forming apparatus
RICOH CO LTD0 citations52
HOSHI FUMIKAZU
4 patentsUS8942583B2Jan 27, 2015
Optical sensor and image forming apparatus
HOSHI FUMIKAZU3 citations61
US8446446B2May 21, 2013
Optical device, optical scanning apparatus and image forming apparatus
HOSHI FUMIKAZU4 citations60
US9188530B2Nov 17, 2015
Sensor and image-forming apparatus
HOSHI FUMIKAZU0 citations40
US9274479B2Mar 1, 2016
Optical sensor and image forming apparatus configured to detect light reflected from sheet
HOSHI FUMIKAZU0 citations39
OBA YOSHIHIRO
3 patentsUS9103717B2Aug 11, 2015
Optical sensor and image forming apparatus configured to detect inside diffusely-reflected light
OBA YOSHIHIRO4 citations73
US10031457B2Jul 24, 2018
Optical sensor, recording medium discrimination device, and image forming apparatus
OBA YOSHIHIRO2 citations71
US8971749B2Mar 3, 2015
Optical sensor and image forming apparatus
OBA YOSHIHIRO2 citations62