Tokyo, Japan

Botaro Hirosaki

This inventor holds 14 USPTO granted patents, primarily in Digital Communication Systems. Top assignees: Nec Corporation, Nippon Electric Co., Ltd.. Active years: 1981-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Botaro Hirosaki. Retrieved from https://idiyas.com/inventor/botaro-hirosaki

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 = 1.5

ph-index = 9

Forward Citations = 338(Granted Patents)


Company Filing History:


Years Active: 1981-1992

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Areas of Expertise:
Digital Communication
Partial Response Coding
Bipolar Coding
Phase-Locked Loop
Timing Recovery
Selective Fading Protection
Frequency Offset Correction
Orthogonal Multiplexing
Sample Timing
Signal Processing
14 patents (USPTO):Explore Patents

Title: Innovations of Botaro Hirosaki

Introduction

Botaro Hirosaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of digital communication, holding a total of 14 patents. His work has advanced the technology used in data transmission and processing.

Latest Patents

One of his latest patents is a digital communication system using partial response and bipolar coding. This system includes a transmitter with a (1,0) precoder that precodes a unipolar input digital data stream. The output signal is converted into a bipolar signal, which is then transmitted through a metallic transmission line to a receiver. The receiver features a digitizer and a line equalization filter to address losses during signal propagation. Additionally, a (1,1) converter and a clock recovery circuit are included to reconstruct the original digital data stream.

Another notable patent is the rate conversion digital filter. This finite impulse response digital filter utilizes selectors to alternately choose samples from two data streams. It incorporates subfilters that introduce different incremental delay times to the outputs, enhancing the processing of the signals.

Career Highlights

Botaro Hirosaki has worked with notable companies such as NEC Corporation and Nippon Electric Co., Ltd. His experience in these organizations has contributed to his expertise in digital communication technologies.

Collaborations

He has collaborated with esteemed colleagues, including Hidehito Aoyagi and Satoshi Hasegawa. Their joint efforts have furthered advancements in their respective fields.

Conclusion

Botaro Hirosaki's innovative work in digital communication systems has made a lasting impact on the industry. His patents reflect a deep understanding of technology and a commitment to advancing communication methods.

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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