Masamitsu Ito

Person

Saitama-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic pen cartridge and electronic pen
- Patent number 12,340,035
- Issue date Jun 24, 2025
- Wacom Co., Ltd.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Position detection apparatus configured to detect the positions of...
- Patent number 12,293,038
- Issue date May 6, 2025
- Wacom Co., Ltd.
- Tomo Asakura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communication system and terminal apparatus
- Patent number 12,169,602
- Issue date Dec 17, 2024
- Wacom Co., Ltd.
- Toshihiko Horie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for adjusting resonance frequency of resonance circuit inclu...
- Patent number 12,111,989
- Issue date Oct 8, 2024
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic pen cartridge and electronic pen
- Patent number 12,056,297
- Issue date Aug 6, 2024
- Wacom Co., Ltd.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Knock-type electronic pen including first and second position indic...
- Patent number 12,001,618
- Issue date Jun 4, 2024
- Wacom Co., Ltd.
- Daisuke Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Position indicator
- Patent number 11,940,301
- Issue date Mar 26, 2024
- Wacom Co., Ltd.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cartridge for an electronic pen
- Patent number D1001130
- Issue date Oct 10, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D19 - Office supplies
Information Patent Grant
Method for adjusting resonance frequency of resonance circuit inclu...
- Patent number 11,762,487
- Issue date Sep 19, 2023
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Position detection sensor and position detection device
- Patent number 11,725,963
- Issue date Aug 15, 2023
- Wacom Co., Ltd.
- Hikaru Matsuura
- G01 - MEASURING TESTING
Information Patent Grant
Electronic pen core body and electronic pen
- Patent number 11,714,498
- Issue date Aug 1, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic pen cartridge and electronic pen
- Patent number 11,687,172
- Issue date Jun 27, 2023
- Wacom Co., Ltd.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Integrated circuit and electronic pen
- Patent number 11,669,176
- Issue date Jun 6, 2023
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic erasing device and writing information processing system
- Patent number 11,662,834
- Issue date May 30, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Position detection apparatus configured to detect the positions of...
- Patent number 11,599,220
- Issue date Mar 7, 2023
- Wacom Co., Ltd.
- Tomo Asakura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cartridge for an electronic pen
- Patent number D978966
- Issue date Feb 21, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D19 - Office supplies
Information Patent Grant
Cartridge for an electronic pen
- Patent number D978243
- Issue date Feb 14, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D19 - Office supplies
Information Patent Grant
Electronic pen core body and electronic pen
- Patent number 11,573,649
- Issue date Feb 7, 2023
- Wacom Co., Ltd.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cartridge for an electronic pen
- Patent number D968408
- Issue date Nov 1, 2022
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Cartridge for an electronic pen
- Patent number D966268
- Issue date Oct 11, 2022
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Electronic erasing device and writing information processing system
- Patent number 11,385,725
- Issue date Jul 12, 2022
- Wacom Co., Ltd.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic pen
- Patent number 11,360,584
- Issue date Jun 14, 2022
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Integrated circuit and electronic pen
- Patent number 11,327,584
- Issue date May 10, 2022
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cartridge for an electronic pen
- Patent number D947192
- Issue date Mar 29, 2022
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Cartridge for an electronic pen
- Patent number D946576
- Issue date Mar 22, 2022
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Electronic pen
- Patent number 11,169,625
- Issue date Nov 9, 2021
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Integrated circuit and electronic pen
- Patent number 10,866,657
- Issue date Dec 15, 2020
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cartridge for an electronic pen
- Patent number D897341
- Issue date Sep 29, 2020
- Wacom Co., Ltd.
- Ryoji Kamiyama
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Electronic pen
- Patent number 10,768,720
- Issue date Sep 8, 2020
- Wacom Co., Ltd.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Position indicator including switch circuit that performs changeove...
- Patent number 10,452,161
- Issue date Oct 22, 2019
- Wacom Co., Ltd.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
EXAMINATION SYSTEM AND TERMINAL APPARATUS
- Publication number 20250068266
- Publication date Feb 27, 2025
- WACOM CO., LTD.
- Toshihiko HORIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...
- Publication number 20250004583
- Publication date Jan 2, 2025
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PEN INPUT DEVICE SHEET
- Publication number 20240411387
- Publication date Dec 12, 2024
- WACOM CO., LTD.
- So KATO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN
- Publication number 20240345668
- Publication date Oct 17, 2024
- WACOM CO., LTD.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION INDICATOR
- Publication number 20240200985
- Publication date Jun 20, 2024
- WACOM CO., LTD.
- Masamitsu ITO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION SYSTEM AND TERMINAL APPARATUS
- Publication number 20240019945
- Publication date Jan 18, 2024
- WACOM CO., LTD.
- Toshihiko HORIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...
- Publication number 20230376133
- Publication date Nov 23, 2023
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION DETECTION SENSOR AND POSITION DETECTION DEVICE
- Publication number 20230332930
- Publication date Oct 19, 2023
- WACOM CO., LTD.
- Hikaru MATSUURA
- G01 - MEASURING TESTING
Information Patent Application
ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN
- Publication number 20230280846
- Publication date Sep 7, 2023
- WACOM CO., LTD.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION DETECTION APPARATUS CONFIGURED TO DETECT THE POSITIONS OF...
- Publication number 20230205361
- Publication date Jun 29, 2023
- WACOM CO., LTD.
- Tomo Asakura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION INDICATOR
- Publication number 20230204391
- Publication date Jun 29, 2023
- WACOM CO., LTD.
- Masamitsu ITO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN CORE BODY AND ELECTRONIC PEN
- Publication number 20230123155
- Publication date Apr 20, 2023
- WACOM CO., LTD.
- Ryoji KAMIYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
KNOCK-TYPE ELECTRONIC PEN
- Publication number 20220413639
- Publication date Dec 29, 2022
- WACOM CO., LTD.
- Daisuke WATANABE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC ERASING DEVICE AND WRITING INFORMATION PROCESSING SYSTEM
- Publication number 20220300092
- Publication date Sep 22, 2022
- WACOM CO., LTD.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION DETECTION SENSOR AND POSITION DETECTION DEVICE
- Publication number 20220291021
- Publication date Sep 15, 2022
- WACOM CO., LTD.
- Hikaru MATSUURA
- G01 - MEASURING TESTING
Information Patent Application
METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...
- Publication number 20220283650
- Publication date Sep 8, 2022
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INTEGRATED CIRCUIT AND ELECTRONIC PEN
- Publication number 20220253152
- Publication date Aug 11, 2022
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN CORE BODY AND ELECTRONIC PEN
- Publication number 20220050536
- Publication date Feb 17, 2022
- WACOM CO., LTD.
- Ryoji KAMIYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN
- Publication number 20220019300
- Publication date Jan 20, 2022
- WACOM CO., LTD.
- Shigeru YAMASHITA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD
- Publication number 20210294493
- Publication date Sep 23, 2021
- WACOM CO., LTD.
- Tomo Asakura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC ERASING DEVICE AND WRITING INFORMATION PROCESSING SYSTEM
- Publication number 20210247851
- Publication date Aug 12, 2021
- WACOM CO., LTD.
- Ryoji Kamiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INTEGRATED CIRCUIT AND ELECTRONIC PEN
- Publication number 20210096661
- Publication date Apr 1, 2021
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN
- Publication number 20200379583
- Publication date Dec 3, 2020
- WACOM CO., LTD.
- Shigeru YAMASHITA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN
- Publication number 20200379584
- Publication date Dec 3, 2020
- WACOM CO., LTD.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INTEGRATED CIRCUIT AND ELECTRONIC PEN
- Publication number 20190384416
- Publication date Dec 19, 2019
- WACOM CO., LTD.
- Shigeru Yamashita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC PEN
- Publication number 20190369758
- Publication date Dec 5, 2019
- WACOM CO., LTD.
- Shigeru YAMASHITA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETIC CORE COIL AND ELECTRONIC PEN
- Publication number 20180081458
- Publication date Mar 22, 2018
- WACOM CO., LTD.
- Toshihiko Horie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION INDICATOR
- Publication number 20170185173
- Publication date Jun 29, 2017
- WACOM CO., LTD.
- Masamitsu Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PEN PRESSURE DETECTING MODULE AND POSITION INDICATOR
- Publication number 20150035807
- Publication date Feb 5, 2015
- WACOM CO., LTD.
- Masamitsu ITO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITION DETECTOR AND DISPLAY DEVICE HAVING THE SAME
- Publication number 20090160790
- Publication date Jun 25, 2009
- Wacom Co., Ltd.
- Masamitsu Fukushima
- G06 - COMPUTING CALCULATING COUNTING

Masamitsu Ito

Person

Patents Grantslast 30 patents

Electronic pen cartridge and electronic pen

Position detection apparatus configured to detect the positions of...

Communication system and terminal apparatus

Method for adjusting resonance frequency of resonance circuit inclu...

Electronic pen cartridge and electronic pen

Knock-type electronic pen including first and second position indic...

Position indicator

Cartridge for an electronic pen

Method for adjusting resonance frequency of resonance circuit inclu...

Position detection sensor and position detection device

Electronic pen core body and electronic pen

Electronic pen cartridge and electronic pen

Integrated circuit and electronic pen

Electronic erasing device and writing information processing system

Position detection apparatus configured to detect the positions of...

Cartridge for an electronic pen

Cartridge for an electronic pen

Electronic pen core body and electronic pen

Cartridge for an electronic pen

Cartridge for an electronic pen

Electronic erasing device and writing information processing system

Electronic pen

Integrated circuit and electronic pen

Cartridge for an electronic pen

Cartridge for an electronic pen

Electronic pen

Integrated circuit and electronic pen

Cartridge for an electronic pen

Electronic pen

Position indicator including switch circuit that performs changeove...

Patents Applicationslast 30 patents

EXAMINATION SYSTEM AND TERMINAL APPARATUS

METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...

PEN INPUT DEVICE SHEET

ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN

POSITION INDICATOR

COMMUNICATION SYSTEM AND TERMINAL APPARATUS

METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...

POSITION DETECTION SENSOR AND POSITION DETECTION DEVICE

ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN

POSITION DETECTION APPARATUS CONFIGURED TO DETECT THE POSITIONS OF...

POSITION INDICATOR

ELECTRONIC PEN CORE BODY AND ELECTRONIC PEN

KNOCK-TYPE ELECTRONIC PEN

ELECTRONIC ERASING DEVICE AND WRITING INFORMATION PROCESSING SYSTEM

POSITION DETECTION SENSOR AND POSITION DETECTION DEVICE

METHOD FOR ADJUSTING RESONANCE FREQUENCY OF RESONANCE CIRCUIT INCLU...

INTEGRATED CIRCUIT AND ELECTRONIC PEN

ELECTRONIC PEN CORE BODY AND ELECTRONIC PEN

ELECTRONIC PEN

POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD

ELECTRONIC ERASING DEVICE AND WRITING INFORMATION PROCESSING SYSTEM

INTEGRATED CIRCUIT AND ELECTRONIC PEN

ELECTRONIC PEN

ELECTRONIC PEN CARTRIDGE AND ELECTRONIC PEN

INTEGRATED CIRCUIT AND ELECTRONIC PEN

ELECTRONIC PEN

MAGNETIC CORE COIL AND ELECTRONIC PEN

POSITION INDICATOR

PEN PRESSURE DETECTING MODULE AND POSITION INDICATOR

POSITION DETECTOR AND DISPLAY DEVICE HAVING THE SAME