logo

For the Inventor, By the Inventor

Saitama, Japan

Shigeru Yamashita

This inventor holds 19 USPTO granted patents and 2 published patent applications and 7 EPO patents, primarily in Electronic Pen Technology. Top assignees: Wacom Co., Ltd., Kabushiki Kaisha Meidensha. Active years: 1993-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Yamashita. Retrieved from https://idiyas.com/inventor/shigeru-yamashita

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 19 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 38(Granted Patents)


Location History:

  • Tokyo, JP (1993)
  • Toyko, JP (2020)
  • Saitama, JP (2016 - 2023)

Company Filing History:

goldMedal18 out of 1,270 
 
Wacom Co., Ltd.
 patents
silverMedal1 out of 246 
 
Kabushiki Kaisha Meidensha
 patents

Years Active: 1993-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Electronic Pen
Resonance Circuit
Integrated Circuit
Erasing Device
Position Indicator
Cartridge
Pen Pressure Detection
Switch Circuit
Magnetic Core Coil
19 patents (USPTO):Explore Patents
1. 12498807 - Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen (2025-12-16),
2. 12277281 - Input device (2025-04-14),
3. 12111989 - Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen (2024-10-08),
4. 11762487 - Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen (2023-09-19),
5. 11669176 - Integrated circuit and electronic pen (2023-06-06),
6. 11662834 - Electronic erasing device and writing information processing system (2023-05-30),
7. 11385725 - Electronic erasing device and writing information processing system (2022-07-12),
8. 11360584 - Electronic pen (2022-06-14),
9. 11327584 - Integrated circuit and electronic pen (2022-05-10),
10. 11169625 - Electronic pen (2021-11-09),
11. 10866657 - Integrated circuit and electronic pen (2020-12-15),
12. D897341 - Cartridge for an electronic pen (2020-09-29),
13. 10768720 - Electronic pen (2020-09-08),
14. 10739872 - Electronic pen and electronic pen main body unit (2020-08-11),
15. 10452161 - Position indicator including switch circuit that performs changeover between first resonance circuit and second resonance circuit (2019-10-22),

Title: Shigeru Yamashita: Innovator in Input Device Technology

Introduction: Shigeru Yamashita, a prolific inventor based in Saitama, Japan, has made significant contributions to the field of input devices and electronic pen technology. With an impressive portfolio of 19 patents, Yamashita continues to push the boundaries of innovation at Wacom Co., Ltd., a company renowned for its cutting-edge digital input solutions.

Latest Patents: Among his latest innovations, Yamashita has developed several noteworthy patents. One key invention is an input device that incorporates a position detection sensor along with an operation part that accepts predetermined interactions. This device enables users to accurately navigate and control functions through a seamless experience on the input surface.

Additionally, he has devised methods for adjusting the resonance frequency of resonance circuits within electronic pens. This innovative method employs an internal capacitor array to measure alternating magnetic fields, allowing for precise tuning of the pen’s functionality. Such advancements enhance the performance and user experience of electronic pens in various applications.

Career Highlights: Throughout his career at Wacom Co., Ltd., Yamashita has been instrumental in the development of technologies that define modern input devices. His work has gained recognition within the industry and showcases a profound understanding of electronic systems and user interface design.

Collaborations: In his innovative journey, Yamashita has collaborated with esteemed colleagues, including Masamitsu Ito and Toshihiko Horie. Their combined expertise fosters an environment of creativity and technological advancement, propelling their shared goals of enhancing user interaction with digital technology.

Conclusion: Shigeru Yamashita exemplifies the spirit of innovation in the technology sector. His 19 patents underscore his commitment to improving input devices and electronic pen functionalities. As industries continue to evolve, the contributions of inventors like Yamashita will undoubtedly shape the future of how we interact with technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…