Nagano, Japan

Tooru Miyajima

This inventor holds 4 USPTO granted patents. Top assignees: Sanyo Denki Co., Ltd., Sayno Denki Co., Ltd.. Active years: 2013-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tooru Miyajima. Retrieved from https://idiyas.com/inventor/tooru-miyajima

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


% Patents Active = 50.0

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Nagano, JP (2013 - 2014)
  • Tokyo, JP (2014)

Company Filing History:


Years Active: 2013-2014

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4 patents (USPTO):Explore Patents

Title: Tooru Miyajima: Innovator in Encoder Technology

Introduction

Tooru Miyajima is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of encoder technology, holding a total of 4 patents. His work focuses on enhancing detection accuracy and reducing device costs in encoder systems.

Latest Patents

Miyajima's latest patents include an innovative encoder designed to achieve highly reliable detection accuracy. This encoder features a light detection unit that receives light from a source, which is transmitted through light-transmitting portions of Gray code optical patterns on a rotating disk. The system detects this light as digital data. Additionally, a magnetic detection unit captures the magnetic pattern of a magnet located at the rotation center of the disk, also converting it into digital data. A processing unit then compares the data from both detection units to correct any detection errors.

Another significant patent involves an encoder that integrates a position detecting device with a gear mechanism and an optical encoder device. This design includes a housing with a bearing holder that separates the gear mechanism from the optical encoder device. This separation effectively prevents abrasion powder or grease from the gear mechanism from contaminating the optical encoder's components.

Career Highlights

Throughout his career, Tooru Miyajima has worked with reputable companies, including Sanyo Denki Co., Ltd. and Sayno Denki Co., Ltd. His experience in these organizations has contributed to his expertise in encoder technology and innovation.

Collaborations

Miyajima has collaborated with notable colleagues such as Toshiaki Ayuzawa and Shigeharu Katou. Their joint efforts have further advanced the development of encoder systems and technologies.

Conclusion

Tooru Miyajima's contributions to encoder technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in detection systems, making him a significant figure in the field.

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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