Inventor
FUJIYOSHI TATSUMI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “FUJIYOSHI TATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALPS ALPINE CO LTD
14 patentsUS10817114B2Oct 27, 2020
Capacitance detection device for detecting capacitance between object proximate to detection electrode and the detection electrode and input device used for inputting information according to proximity of object
ALPS ALPINE CO LTD14 citations84
US12019109B2Jun 25, 2024
Capacitance detection device and capacitance detection method
ALPS ALPINE CO LTD4 citations75
US11599222B2Mar 7, 2023
Detection device
ALPS ALPINE CO LTD2 citations73
US10942613B2Mar 9, 2021
Input device and method of controlling the same
ALPS ALPINE CO LTD2 citations73
US11327100B2May 10, 2022
Electrostatic sensor and door handle
ALPS ALPINE CO LTD2 citations72
US12174047B2Dec 24, 2024
Capacitance detection device and capacitance detection method
ALPS ALPINE CO LTD0 citations62
US11511605B2Nov 29, 2022
Operation input device and door handle
ALPS ALPINE CO LTD1 citations62
US11112920B2Sep 7, 2021
Input device and image data calculation method
ALPS ALPINE CO LTD1 citations62
US12386464B2Aug 12, 2025
Proximity detection device
ALPS ALPINE CO LTD0 citations52
US11379086B2Jul 5, 2022
Proximity detecting device having obliquely crossing detection electrode group
ALPS ALPINE CO LTD0 citations52
US11188166B2Nov 30, 2021
Input device
ALPS ALPINE CO LTD0 citations52
US11131566B2Sep 28, 2021
Electrostatic sensor
ALPS ALPINE CO LTD0 citations52
US10331409B2Jun 25, 2019
Sine wave multiplication device and input device having the same
ALPS ALPINE CO LTD0 citations40
US10511290B2Dec 17, 2019
Sine-wave multiplier and input device including the same
ALPS ALPINE CO LTD0 citations39
ALPS ELECTRIC CO LTD
11 patentsUS6552707B1Apr 22, 2003
Drive method for liquid crystal display device and drive circuit
ALPS ELECTRIC CO LTD89 citations98
US7336254B2Feb 26, 2008
Shift register that suppresses operation failure due to transistor threshold variations, and liquid crystal driving circuit including the shift register
ALPS ELECTRIC CO LTD21 citations92
US7102364B2Sep 5, 2006
Capacitance detecting circuit and detecting method, and fingerprint sensor employing the same
ALPS ELECTRIC CO LTD31 citations92
US6922189B2Jul 26, 2005
Image-signal driving circuit eliminating the need to change order of inputting image data to source driver
ALPS ELECTRIC CO LTD53 citations92
US5251051AOct 5, 1993
Circuit for driving liquid crystal panel
ALPS ELECTRIC CO LTD22 citations92
US6624825B1Sep 23, 2003
Pixel resolution converting circuit and image display device using the same
ALPS ELECTRIC CO LTD13 citations84
US6593939B2Jul 15, 2003
Image display device and driver circuit therefor
ALPS ELECTRIC CO LTD9 citations74
US7570789B2Aug 4, 2009
Charge detecting circuit and fingerprint sensor using the same
ALPS ELECTRIC CO LTD6 citations63
US6744216B2Jun 1, 2004
Display device requiring no scramble circuit
ALPS ELECTRIC CO LTD2 citations63
US9678191B2Jun 13, 2017
Electrostatic capacitance detection circuit and input device
ALPS ELECTRIC CO LTD0 citations42
US10152186B2Dec 11, 2018
Input device for detecting an electrostatic capacitance of an object
ALPS ELECTRIC CO LTD0 citations33
LG PHILIPS LCD CO LTD
3 patentsFRONTEC INC
3 patentsUS6211854B1Apr 3, 2001
Display apparatus and driving method therefor
FRONTEC INC47 citations92
US6011530AJan 4, 2000
Liquid crystal display
FRONTEC INC50 citations92
US5875015AFeb 23, 1999
Color liquid crystal display wherein intervals between adjacent lines passing adjacent pixels of same color are 260 μm or below
FRONTEC INC3 citations63