P

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 patents
USD897341SSep 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

SHIMADZU CORP

4 patents

OLYMPUS OPTICAL CO

2 patents

NAT UNIV CORP NARA INST

1 patent

SHIMIZU HIROHITO

1 patent

MORITA HIROKAZU

1 patent

KURARAY CO

1 patent

KOKAWA MANABU

1 patent

MORISHITA FISHING NET MANUFACT

1 patent

NISHIIKE MASASHI

1 patent

NIPPON ELECTRIC KAGOSHIMA LTD

1 patent

NIHON HAMMOND KK

1 patent

MEIDENSHA ELECTRIC MFG CO LTD

1 patent

KAWASAKI HEAVY IND LTD

1 patent