Takao Sugawara

This inventor holds 24 USPTO granted patents, primarily in Information Storage Technology. Top assignees: Fujitsu Corporation, Marvell Asia Pte., Ltd.. Active years: 1994-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Sugawara. Retrieved from https://idiyas.com/inventor/takao-sugawara

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

USPTO Granted Patents = 24

% Patents Active = 50.0

Average Co-Inventor Count = 3.1

ph-index = 12

Forward Citations = 419(Granted Patents)

Location History:

Kawasaki, JP (1994 - 2009)
Isehara, JP (2006 - 2021)

Company Filing History:

Marvell Asia Pte., Ltd.

patents

Years Active: 1994-2021

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Areas of Expertise:

Fly-Height Control

Error Correcting Code

Signal Decoding Circuit

Magnetic Head Testing

Data Storage

Timing Recovery

Reproduction Apparatus

Viterbi Decoding

Disk Drive

Maximum-Likelihood Decoding

Recording Medium

Phase Acquisition

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10943615 - Differential interface transmission of fly-height control data (2021-03-09),

2. 7590929 - Record reproduction method, apparatus, and circuit for using error correcting code (2009-09-15),

3. 7515369 - Information recording and reproducing apparatus and method, and signal decoding circuit for performing timing recovery (2009-04-07),

4. 7434136 - Method of and apparatus for reading recording medium, harddisk controller (2008-10-07),

5. 7355938 - Timing recovery method and storage apparatus for suppressing control of sampling positions (2008-04-08),

6. 7286596 - Training method for recording medium reproduction equalizer and recording medium reproduction apparatus (2007-10-23),

7. 7237173 - Recording and reproducing apparatus, signal decoding circuit, error correction method and iterative decoder (2007-06-26),

8. 7138931 - Recording and reproducing apparatus (2006-11-21),

9. 7110199 - Information recording and reproducing apparatus, signal decoding circuit, and information recording medium and method (2006-09-19),

10. 7085666 - Magnetic head testing apparatus (2006-08-01),

11. 7054088 - Information recording and reproducing apparatus and method, and signal decoding circuit for performing timing recovery (2006-05-30),

12. 7035029 - Method of and apparatus for recording/reading information, circuit for recording/reading signal (2006-04-25),

13. 7031090 - Information recording and reproducing apparatus and method and signal decoding circuit having improved noise processing characteristics (2006-04-18),

14. 6532122 - Data storage apparatus and magnetic recording method (2003-03-11),

15. 6501610 - Detecting circuit for read signal from magnetic recording system using partial response (2002-12-31),

Title: Innovations and Contributions of Takao Sugawara

Introduction

Takao Sugawara, a notable inventor located in Kawasaki, Japan, holds an impressive portfolio of 24 patents. His innovative contributions primarily focus on advancements in data transmission and error correction in recording mediums. His work reflects a dedication to enhancing technology in the digital realm.

Latest Patents

Among his latest inventions, Sugawara has developed methods and systems for controlling the fly-height of a read/write head. The patent titled “Differential interface transmission of fly-height control data” outlines an embodiment where a read/write channel detects a servo gate signal and alters a mode signal within a preamplifier. This innovation enables the RW channel to transmit fly-height control data over a differential interface effectively.

Another remarkable invention from Sugawara is a patent that addresses a “Record reproduction method, apparatus, and circuit for using error correcting code.” This apparatus includes an encoding unit that processes sector data by dividing it into blocks for improved writing onto a recording medium and features an iterative decoding unit for effective data retrieval.

Career Highlights

Throughout his illustrious career, Takao Sugawara has been associated with prominent companies that have shaped his expertise. He has contributed to Fujitsu Corporation and Marvell Asia Pte., Ltd., where he applied his inventive skills to advance technology in the field of computing and digital data management.

Collaborations

Sugawara has collaborated with esteemed colleagues such as Yoshifumi Mizoshita and Toshihiko Morita, helping to foster creativity and innovation in their projects. These collaborations have likely enriched his ideas and led to significant developments in their respective areas of expertise.

Conclusion

Takao Sugawara's inventions significantly impact technology, particularly in data transmission and error correction. His extensive patent portfolio not only exemplifies his innovative spirit but also reflects a commitment to advancing the technological landscape. With ongoing research and development, Sugawara continues to contribute valuable insights to the field of electronics and computing.

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]