Kokubunji, Japan

Kazumasa Yanagisawa

This inventor holds 106 USPTO granted patents and 3 published patent applications and 1 EPO patent, primarily in Semiconductor Devices (CPC class 36523003). Top assignees: Hitachi, Ltd., Renesas Electronics Corporation, Renesas Technology Corp.. Active years: 1987-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumasa Yanagisawa. Retrieved from https://idiyas.com/inventor/kazumasa-yanagisawa

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

Calculating rank
USPTO Granted Patents = 106 

% Patents Active = 78.3

 

Average Co-Inventor Count = 3.7

ph-index = 19

Forward Citations = 1,488(Granted Patents)

Forward Citations (Not Self Cited) = 1,447(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tanashi, JP (1987)
  • Kokubungi, JP (1989)
  • Kokubunji-shi, Tokyo, JP (1991)
  • Kokobunji, JP (2008)
  • Machida, JP (2011)
  • Kanagawa, JP (2015)
  • Kokubunji, JP (1987 - 2019)
  • Tokyo, JP (2008 - 2019)
  • Kodaira, JP (2019 - 2022)

Company Filing History:


Years Active: 1987-2026

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Areas of Expertise:
Nonvolatile Memory
Semiconductor Device
Integrated Circuit
Solid-State Imaging
Memory Cell
MOSFETs
SRAM Circuit
Manufacturing Method
Data Transfer Rates
Camera System
Semiconductor SRAM
Testing Method
106 patents (USPTO):Explore Patents

Title: **Kazumasa Yanagisawa: A Pioneer in Semiconductor Innovations**

Introduction

Kazumasa Yanagisawa, a prominent inventor based in Kokubunji, Japan, has made significant contributions to the fields of solid-state imaging devices and non-volatile semiconductor memory. With an impressive portfolio of 105 patents, Yanagisawa has established himself as a leading figure in technological innovation.

Latest Patents

Among his latest inventions are a **solid-state imaging device and camera system** capable of capturing still images without the need for a recording medium. This innovative imaging device features an array of components within each pixel, including a photodiode, several transistors, and a memory element designed to enhance image capture efficiency. Furthermore, his **non-volatile semiconductor storage device** introduces a compact design whereby memory cells are arranged between programming and reading bit lines, optimizing space and improving performance over traditional designs.

Career Highlights

Kazumasa Yanagisawa has had a notable career, contributing his expertise to prominent companies such as Hitachi, Ltd. and Renesas Electronics Corporation. His work has consistently focused on advancing semiconductor technologies, which are crucial in today’s digital landscape.

Collaborations

Throughout his career, Yanagisawa has collaborated with talented professionals like Yusuke Kanno and Kazushige Ayukawa. These partnerships have fostered innovation and creativity in their projects, driving significant advancements in semiconductor technology.

Conclusion

With a total of 105 patents to his name, Kazumasa Yanagisawa continues to push the boundaries of technological innovation. His contributions, particularly in the areas of imaging and non-volatile memory, are paving the way for future advancements in the electronics industry. As he remains active in the field, Yanagisawa's work undoubtedly lays the foundation for emerging technologies and applications.

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]
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