Tokyo, Japan

Tsutomu Katsuyama

This inventor holds 6 USPTO granted patents. Top assignee: Oki Electric Industry Co., Ltd.. Active years: 1989-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Katsuyama. Retrieved from https://idiyas.com/inventor/tsutomu-katsuyama

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 328(Granted Patents)


Company Filing History:


Years Active: 1989-2000

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6 patents (USPTO):Explore Patents

Title: The Innovations of Tsutomu Katsuyama

Introduction

Tsutomu Katsuyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of mobile communication technology, holding a total of six patents. His work focuses on enhancing the efficiency and performance of communication devices.

Latest Patents

One of his latest patents is a high-frequency receiving circuit for mobile communication apparatus. This invention involves a receiving wave that contains a desired signal, which is processed through various filters to ensure optimal performance. The design includes a phase-locked loop circuit that outputs a frequency control voltage, allowing for precise channel selection. Another notable patent is a CDMA transmitter featuring a variable gain circuit. This innovation allows for better control of RF output power, enhancing the overall functionality of the transmitter.

Career Highlights

Tsutomu Katsuyama has dedicated his career to advancing mobile communication technologies. His work at Oki Electric Industry Co., Ltd. has positioned him as a key player in the industry. His inventions have not only improved existing technologies but have also paved the way for future innovations.

Collaborations

Throughout his career, Katsuyama has collaborated with notable colleagues, including Waho O and Tomonori Nagano. These partnerships have contributed to the development of groundbreaking technologies in the field.

Conclusion

Tsutomu Katsuyama's contributions to mobile communication technology are noteworthy and impactful. His innovative patents reflect his commitment to enhancing communication systems. His work continues to influence the industry and inspire future inventors.

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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