Kawanishi, Japan

Kohichi Hagino

This inventor holds 4 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 2005-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohichi Hagino. Retrieved from https://idiyas.com/inventor/kohichi-hagino

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


% Patents Active = 25.0

Average Co-Inventor Count = 1.1

ph-index = 3

Forward Citations = 17(Granted Patents)


Location History:

  • Hyogo-ken, JP (2005)
  • Kawanishi, JP (2007 - 2009)
  • Hyougo-ken, JP (2010)

Company Filing History:


Years Active: 2005-2010

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4 patents (USPTO):Explore Patents

Title: Kohichi Hagino: Innovator in Audio and Oscillation Technologies

Introduction

Kohichi Hagino is a prominent inventor based in Kawanishi, Japan. He has made significant contributions to the fields of audio power amplification and oscillation circuits. With a total of 4 patents to his name, his work has had a notable impact on technology.

Latest Patents

Hagino's latest patents include a system, circuit, and amplifier designed to reduce pop sounds in audio power amplifiers. This innovative audio power amplifier features a differential amplifier circuit that serves as an input circuit. The circuit includes a signal GND (SG) terminal for receiving SG voltage and an audio signal input terminal. A SG voltage generation circuit is also included, which outputs the SG voltage while suppressing pop sounds during transitions. Another significant patent is an oscillation circuit capable of stable oscillation across a wide temperature range. This circuit comprises a constant current source, a current mirror circuit, and inverters that work together to ensure reliable performance.

Career Highlights

Kohichi Hagino is currently employed at Ricoh Company, Ltd., where he continues to innovate and develop new technologies. His expertise in audio and oscillation technologies has positioned him as a valuable asset to the company.

Collaborations

Hagino collaborates with Tomonari Katoh, working together to advance their projects and share insights in their respective fields.

Conclusion

Kohichi Hagino's contributions to audio and oscillation technologies demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving user experience in audio applications and ensuring stability in electronic circuits.

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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