Fukuoka, Japan

Masahiro Ichihashi

This inventor holds 9 USPTO granted patents and 3 published patent applications. Top assignees: Sony Semiconductor Solutions Corporation, Sony Corporation, Sony Electronics Inc. Active years: 2007-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Ichihashi. Retrieved from https://idiyas.com/inventor/masahiro-ichihashi

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

USPTO Granted Patents = 9 

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 1

Forward Citations = 25(Granted Patents)


Location History:

  • Nagasaki, JP (2007)
  • Fukuoka, JP (2020 - 2022)
  • Kanagawa, JP (2022)

Company Filing History:


Years Active: 2007-2026

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9 patents (USPTO):Explore Patents

Title: Masahiro Ichihashi: Innovator in Electronic Devices

Introduction

Masahiro Ichihashi is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of electronics, holding a total of eight patents. His work focuses on improving the efficiency and stability of electronic devices, particularly in current source circuits and driver circuits.

Latest Patents

Ichihashi's latest patents include a current source circuit and an electronic device designed to enhance the stability of a reference current. This innovative circuit utilizes capacitors, a switching circuit, an operational amplifier, and an output transistor. The switching circuit charges one of the capacitors with a predetermined current and transfers electric charge between the capacitors. The operational amplifier amplifies the voltage difference and outputs it as a reference current through the output transistor.

Another notable patent is for a driver circuit and imaging device aimed at reducing power consumption in image processing devices. This driver circuit features a drive signal output circuit that responds to a trigger signal. During the rising edge of the drive signal, a step-up switch selects voltages in ascending order, while a step-down switch does the same in descending order during the falling edge. This innovative approach optimizes power usage in imaging technology.

Career Highlights

Ichihashi has worked with leading companies in the technology sector, including Sony Semiconductor Solutions Corporation and Sony Corporation. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in electronic devices.

Collaborations

Ichihashi has collaborated with notable colleagues such as Kazumasa Nishimura and Masayuki Katakura. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Masahiro Ichihashi is a distinguished inventor whose work in electronic devices has led to significant advancements in technology. His patents reflect a commitment to improving efficiency and stability in electronic circuits. His contributions continue to influence the industry and inspire future innovations.

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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