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For the Inventor, By the Inventor

Kawasaki, Japan

Koichi Hatta

This inventor holds 10 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1996-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Hatta. Retrieved from https://idiyas.com/inventor/koichi-hatta-etg12d7x

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 = 1.7

ph-index = 6

Forward Citations = 144(Granted Patents)


Location History:

  • Inagi, JP (1996)
  • Tokyo, JP (2003)
  • Kawasaki, JP (1996 - 2004)

Company Filing History:

goldMedal10 out of 39,374 
 
Fujitsu Corporation
 patents

Years Active: 1996-2004

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10 patents (USPTO):Explore Patents
1. 6798831 - Testing system (2004-09-28),
2. 6618450 - Receiving apparatus and receiving method (2003-09-09),
3. 6087869 - Digital PLL circuit (2000-07-11),
4. 5859551 - Digital PLL circuit (1999-01-12),
5. 5822557 - Pipelined data processing device having improved hardware control over (1998-10-13),
6. 5778010 - Method and device for correcting packet data error and packet receiver (1998-07-07),
7. 5742842 - Data processing apparatus for executing a vector operation under control (1998-04-21),
8. 5742839 - Coprocessor for performing an arithmetic operation by automatically (1998-04-21),
9. 5515520 - Data processing system for single-precision and double-precision data (1996-05-07),
10. 5508948 - Numeric representation converting apparatus and vector processor unit (1996-04-16),

Title: Koichi Hatta: Innovator in Digital Signal Processing

Introduction

Koichi Hatta is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of digital signal processing, holding a total of 10 patents. His work focuses on developing advanced testing systems and receiving methods that enhance the efficiency and reliability of digital communications.

Latest Patents

One of Hatta's latest patents is a testing system that incorporates a pseudo random number generating circuit. This circuit generates a pseudo random number based on a 125 MHz clock output from a 5-multiply circuit within a clock recovery circuit. The system also features an expected value generating/comparator circuit that collates a 125 Mbps recovered data output with expected value data every 5 bits, producing a 1-bit test output. The clock recovery circuit and the testing system operate on the same LSI at a high frequency of 125 MHz, while the test output is recognized as a 25 MHz low-speed data for external elements.

Another notable patent involves a receiving apparatus and method that utilizes a first-transition detecting circuit. This circuit receives a synchronism detection signal, indicating that the synchronism of a digital signal has been established, and outputs a pulse. A flip-flop receives this pulse and outputs a flag signal of "H" level. When a TMCC decoding complete signal is generated, the TMCC signal is written into a buffer anew and used for decoding a data stream. The system updates the TMCC signal in response to output from a comparing circuit that indicates inconsistencies between new and stored updating instruction information.

Career Highlights

Koichi Hatta is currently employed at Fujitsu Corporation, where he continues to innovate in the field of digital technology. His work has been instrumental in advancing the capabilities of digital signal processing systems.

Collaborations

Hatta has collaborated with notable colleagues, including Seiji Suetake and Hideyuki Iino, contributing to various projects that enhance digital communication technologies.

Conclusion

Koichi Hatta's contributions to digital signal processing through his innovative patents and collaborations have significantly impacted the field. His work continues to pave the way for advancements in digital communication 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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