Osaka, Japan

Takeshi Nagahisa

This inventor holds 6 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Ricoh Company, Ltd.. Active years: 2012-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Nagahisa. Retrieved from https://idiyas.com/inventor/takeshi-nagahisa

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

USPTO Granted Patents = 6 

% Patents Active = 33.3

 

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 41(Granted Patents)


Location History:

  • Ikeda, JP (2012)
  • Toyonaka, JP (2015 - 2016)
  • Osaka, JP (2015 - 2018)

Company Filing History:


Years Active: 2012-2018

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6 patents (USPTO):Explore Patents

Title: The Innovations of Takeshi Nagahisa

Introduction

Takeshi Nagahisa is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of electronics, particularly in the development of advanced filter circuits and semiconductor integrated circuits. With a total of 6 patents to his name, Nagahisa continues to push the boundaries of innovation.

Latest Patents

Nagahisa's latest patents include a high-pass filter circuit and a band-pass filter circuit. These circuits are designed to enhance signal processing capabilities. The high-pass filter circuits feature a capacitor that inputs an input signal, a resistor connected to a prescribed bias voltage, and a signal output circuit that buffers and amplifies the input signal for output. One type of high-pass filter circuit utilizes a resistor formed on an SOI semiconductor substrate, incorporating two PN junction diodes connected inversely in parallel. The other type employs a resistor on the same substrate but uses two MOS transistors connected inversely in parallel. Additionally, he has developed a semiconductor integrated circuit that includes an acquisition unit for processing values from an infrared sensor and a temperature sensor. This circuit is capable of calculating the temperature of an object based on various measured temperatures.

Career Highlights

Takeshi Nagahisa is currently employed at Ricoh Company, Ltd., where he applies his expertise in electronics and innovation. His work has significantly impacted the company's technological advancements and product offerings.

Collaborations

Nagahisa collaborates with talented coworkers, including Katsuhiko Aisu and Hirofumi Watanabe. Their combined efforts contribute to the innovative projects at Ricoh Company, Ltd.

Conclusion

Takeshi Nagahisa is a remarkable inventor whose work in filter circuits and semiconductor technology showcases his dedication to innovation. His contributions continue to influence the electronics industry and inspire 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]
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