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For the Inventor, By the Inventor

Yokohama, Japan

Masato Soma

This inventor holds 4 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1997-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masato Soma. Retrieved from https://idiyas.com/inventor/masato-soma-za4m7qol

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 50.0

Average Co-Inventor Count = 4.5

ph-index = 3

Forward Citations = 21(Granted Patents)


Location History:

  • Takasaki, JP (1997)
  • Yokohama, JP (2003 - 2006)

Company Filing History:

goldMedal4 out of 42,743 
 
Hitachi, Ltd.
 patents

Years Active: 1997-2006

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4 patents (USPTO):Explore Patents
1. 7111133 - Control apparatus for selectively operating with program data from two memories and having a system controller supplying program data and address for writing the data to the second memory (2006-09-19),
2. 6785204 - Actuator control device (2004-08-31),
3. 6665237 - Control apparatus and optical disc apparatus using it (2003-12-16),
4. 5633846 - Positioning device for optical disc apparatus (1997-05-27),

Title: Masato Soma: Innovator in Control Systems

Introduction

Masato Soma is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of control systems, holding a total of 4 patents. His work focuses on enhancing the efficiency and functionality of control apparatuses and actuator control devices.

Latest Patents

One of Masato Soma's latest patents is a control apparatus designed for selectively operating with program data from two memories. This system controller supplies program data and addresses for writing data to a second memory. The innovation allows for the alteration of control circuit operations by rewriting program memory data built into an LSI, making it both cost-effective and easy to implement. The control apparatus includes a ROM, a SRAM, a means for writing data in the SRAM, and a selection mechanism for choosing outputs based on supplied addresses.

Another notable patent is the actuator control device, which performs modifications to restore proper tracking control quickly. This device estimates disturbances affecting the actuator and adjusts control signals accordingly. By making the second control signal zero during abnormal states, the system can rapidly return to proper functionality, even when faced with external forces exceeding the actuator's maximum output.

Career Highlights

Masato Soma is currently employed at Hitachi, Ltd., where he continues to innovate in the field of control systems. His work has been instrumental in developing advanced technologies that improve the performance of various devices.

Collaborations

Throughout his career, Masato has collaborated with notable colleagues, including Atsushi Okuyama and Yoshinori Ishikawa. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Masato Soma's contributions to control systems and actuator technology demonstrate his commitment to innovation. His patents reflect a deep understanding of complex systems and a drive to enhance their efficiency and reliability.

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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