Inventor
YAMASHITA SHIGERU
35 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WACOM CO LTD
18 patentsUSD897341SSep 29, 2020
Cartridge for an electronic pen
WACOM CO LTD22 citations94
US9513719B2Dec 6, 2016
Pen pressure detecting module and position indicator
WACOM CO LTD11 citations84
US10866657B2Dec 15, 2020
Integrated circuit and electronic pen
WACOM CO LTD2 citations73
US10768720B2Sep 8, 2020
Electronic pen
WACOM CO LTD2 citations73
US10739872B2Aug 11, 2020
Electronic pen and electronic pen main body unit
WACOM CO LTD3 citations73
US10345930B2Jul 9, 2019
Magnetic core coil and electronic pen
WACOM CO LTD2 citations73
US10152144B2Dec 11, 2018
Position pointer and position indicator cartridge
WACOM CO LTD2 citations73
US11385725B2Jul 12, 2022
Electronic erasing device and writing information processing system
WACOM CO LTD5 citations71
US12498807B2Dec 16, 2025
Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen
WACOM CO LTD0 citations62
US12111989B2Oct 8, 2024
Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen
WACOM CO LTD0 citations62
US11762487B2Sep 19, 2023
Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen
WACOM CO LTD0 citations62
US11669176B2Jun 6, 2023
Integrated circuit and electronic pen
WACOM CO LTD0 citations62
US11360584B2Jun 14, 2022
Electronic pen
WACOM CO LTD0 citations62
US11327584B2May 10, 2022
Integrated circuit and electronic pen
WACOM CO LTD0 citations62
US11169625B2Nov 9, 2021
Electronic pen
WACOM CO LTD0 citations62
US12277281B2Apr 15, 2025
Input device
WACOM CO LTD1 citations60
US11662834B2May 30, 2023
Electronic erasing device and writing information processing system
WACOM CO LTD0 citations60
US10452161B2Oct 22, 2019
Position indicator including switch circuit that performs changeover between first resonance circuit and second resonance circuit
WACOM CO LTD0 citations41