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For the Inventor, By the Inventor

Yokohama, Japan

Kazuhisa Tsubaki

This inventor holds 10 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Communication Industrial Co., Ltd., Ntt Mobile Communications Network, Inc.. Active years: 1994-1999.

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

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 5

Forward Citations = 104(Granted Patents)


Company Filing History:

goldMedal9 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
silverMedal1 out of 10 
 
Matsushita Communication Industrial Co., Ltd.
 patents
bronzeMedal1 out of 247 
 
Ntt Mobile Communications Network, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1994-1999

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10 patents (USPTO):Explore Patents
1. 5960336 - Data receiving apparatus (1999-09-28),
2. 5563911 - Equalizer for data receiver apparatus (1996-10-08),
3. 5524282 - Apparatus and method for detecting place of burst signals in time (1996-06-04),
4. 5444739 - Equalizer for data receiver apparatus (1995-08-22),
5. 5425037 - Data transmission apparatus (1995-06-13),
6. 5414737 - Data decoding device with error rate estimation (1995-05-09),
7. 5388123 - Data receiving system (1995-02-07),
8. 5381448 - Data receiving apparatus (1995-01-10),
9. 5333148 - Data receiver (1994-07-26),
10. 5276713 - Method of frame synchronization for digital mobile radio communication (1994-01-04),

Title: Kazuhisa Tsubaki: Innovator in Data Communication Technologies

Introduction

Kazuhisa Tsubaki is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of data communication technologies, holding a total of 10 patents. His innovative work focuses on enhancing data receiving apparatuses and equalizers, which are crucial for efficient signal processing.

Latest Patents

One of Tsubaki's latest patents is a data receiving apparatus designed to compare the received signal strength of multiple antennas. This apparatus utilizes the timing of a sync word, which is not necessary for synchronization acquisition, to select the antenna with the highest signal strength. Another notable patent is for an equalizer used in data receiver apparatuses. This equalizer incorporates several delay elements and weighting elements to estimate the impulse response of a signal transmission channel. By selectively switching the combination of these elements, Tsubaki's design reduces the number of required taps, thereby minimizing power consumption and the size of the equalizer.

Career Highlights

Throughout his career, Kazuhisa Tsubaki has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Matsushita Communication Industrial Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in data communication.

Collaborations

Tsubaki has collaborated with several talented individuals in his field, including Kouichi Honma and Mitsuru Uesugi. These collaborations have contributed to the advancement of technology in data communication.

Conclusion

Kazuhisa Tsubaki's contributions to data communication technologies through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the efficiency of data receiving and processing systems.

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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