Kyoto, Japan

Masahiko Sakagami

This inventor holds 14 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electronics Corporation, Panasonic Corporation. Active years: 1989-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Sakagami. Retrieved from https://idiyas.com/inventor/masahiko-sakagami

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


% Patents Active = 64.3

Average Co-Inventor Count = 2.7

ph-index = 4

Forward Citations = 59(Granted Patents)


Location History:

  • Takatsuki, JP (1989 - 1992)
  • Osaka, JP (1993)
  • Kameoka, JP (2006 - 2007)
  • Kyoto, JP (2001 - 2008)
  • Kadoma, JP (2010)

Company Filing History:


Years Active: 1989-2025

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14 patents (USPTO):Explore Patents

Title: The Innovations of Masahiko Sakagami

Introduction

Masahiko Sakagami, a prominent inventor from Kyoto, Japan, has made significant contributions to the field of semiconductor technology. With a total of 13 patents to his name, Sakagami's work focuses on enhancing memory devices and improving data transfer operations. His latest patents showcase his innovative approach to solving complex challenges in this rapidly evolving industry.

Latest Patents

Sakagami's recent inventions include a semiconductor memory device designed to be compatible with Static Random-Access Memory (SRAM). This device facilitates high-speed data transfer while ensuring data reliability. The operational process begins with an external chip enable signal (XCE) undergoing a falling transition, which triggers memory core access. At the same time, an external write enable signal (XWE) and an address signal (ADD) are processed to select the corresponding memory cell. Upon completion of data read-out or write-in, a rewrite timer is activated based on the rising transition of XCE or XWE, thereby enabling efficient data rewriting.

Furthermore, he has developed a semiconductor memory device that employs a bitline amplified to both positive and negative voltages. By eliminating the need for a reset transistor between a storage node and a cell plate line of a memory cell, this innovation fixes the cell plate line to a potential similar to ground while driving the bitline with the specified voltages.

Career Highlights

Throughout his career, Masahiko Sakagami has held positions at respected organizations in the technology sector. He has notably worked with Matsushita Electric Industrial Co., Ltd. and Matsushita Electronics Corporation, where he honed his skills and contributed to various semiconductor developments. His extensive experience in these companies has laid the foundation for his groundbreaking inventions.

Collaborations

Collaboration has been a vital aspect of Sakagami's work. He has partnered with talented individuals such as Shunichi Iwanari and Yasuo Murakuki, whose expertise complements his inventive capabilities. These collaborations have fostered an environment of innovation, allowing for the successful development of advanced semiconductor technologies.

Conclusion

Masahiko Sakagami's contributions to the field of semiconductor memory devices reflect his commitment to innovation and excellence. With a track record of 13 patents, his inventions continue to propel the industry forward. As technology advances, Sakagami's work stands as a testament to the impact inventors can have on our digital landscape.

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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