Kanagawa, Japan

Mayumi Yamaguchi

This inventor holds 44 USPTO granted patents and 3 EPO patents, primarily in Microelectromechanical Systems. Top assignee: Semiconductor Energy Laboratory Co., Ltd.. Active years: 2009-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mayumi Yamaguchi. Retrieved from https://idiyas.com/inventor/mayumi-yamaguchi

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


% Patents Active = 11.4


Average Co-Inventor Count = 2.3

ph-index = 9

Forward Citations = 338(Granted Patents)


Location History:

  • Kanagwa-ken, JP (2013)
  • Kanagawa, JP (2009 - 2018)
  • Atsugi, JP (2010 - 2019)

Company Filing History:


Years Active: 2009-2019

Loading Chart...
Loading Chart...
Areas of Expertise:
Microelectromechanical Systems
Semiconductor Devices
Micromachine
Manufacturing Method
Organic Transistor
Particle Detection Sensor
Minute Structure
Integrated Circuit
Assist Device
Test Method
Microstructure
44 patents (USPTO):Explore Patents

Title: Innovations by Mayumi Yamaguchi: Pioneering Modern Writing Instruments and MEMS Technology

Introduction: Mayumi Yamaguchi, an esteemed inventor based in Kanagawa, Japan, has made significant contributions to the field of semiconductor technology and innovative writing instruments. With an impressive portfolio of 44 patents, Yamaguchi has demonstrated an exceptional ability to combine functionality with cutting-edge design.

Latest Patents: Among Yamaguchi's latest inventions are the "Electronic Pen" and "Electronic Pen System," which aim to create a compact and lightweight writing instrument capable of accurately capturing and reading written information as electronic data. This pen-shaped device features a rechargeable battery, sensors to detect nib contact and movement, a control circuit, and memory—all powered by the battery.

Additionally, Yamaguchi has patented advancements in micro electro mechanical systems (MEMS) and their manufacturing methods. His innovative approach allows for the creation of MEMS sensors without the need for etching a sacrifice layer, thereby improving yield and eliminating restrictions associated with etching time.

Career Highlights: Mayumi Yamaguchi is associated with Semiconductor Energy Laboratory Co., Ltd., a company renowned for its groundbreaking work in semiconductor technology. His dedication to innovation and technical expertise has positioned him as a key figure within the organization, contributing to numerous advancements in the field.

Collaborations: Throughout his career, Yamaguchi has collaborated with talented individuals like Konami Izumi and Fuminori Tateishi. These partnerships have enabled the sharing of ideas and technical skills that have fostered a rich environment of creativity and innovation.

Conclusion: Mayumi Yamaguchi's remarkable contributions to the field of innovation through his inventions in electronic writing instruments and MEMS technology underscore his status as a pivotal inventor in modern technology. His commitment to enhancing functionality and efficiency continues to inspire upcoming inventors and pave the way for future advancements.

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…