Tokyo, Japan

Kazuhisa Haeiwa

This inventor holds 1 USPTO granted patent, plus 1 CIPO patent. Top assignees: Nec Corporation, Nippon Hoso' Kyokai. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhisa Haeiwa. Retrieved from https://idiyas.com/inventor/kazuhisa-haeiwa

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 7.0

ph-index = 1

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: Kazuhisa Haeiwa: Innovator in Digital Amplitude Modulation

Introduction

Kazuhisa Haeiwa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of television broadcasting technology. His innovative work has led to the development of a unique digital amplitude modulation amplifier.

Latest Patents

Haeiwa holds a patent for a digital amplitude modulation amplifier and television broadcasting system. This invention involves a complex process where the output voltage of a coupler is phase-shifted to align with input signals. The technology allows for the phase and amplitude modulation of a carrier signal, enabling the formation of a television signal without the need for a vestigial side band.

Career Highlights

Throughout his career, Kazuhisa Haeiwa has worked with prominent companies such as NEC Corporation and Nippon Hoso Kyokai. His experience in these organizations has contributed to his expertise in broadcasting technology and innovation.

Collaborations

Haeiwa has collaborated with notable individuals in his field, including Haruo Takeda and Yukio Tatsumi. These partnerships have furthered advancements in television broadcasting technology.

Conclusion

Kazuhisa Haeiwa's contributions to digital amplitude modulation and television broadcasting have made a lasting impact on the industry. His innovative spirit continues to inspire future advancements in technology.

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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