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For the Inventor, By the Inventor

Saitama, Japan

Shinjiro Kato

This inventor holds 13 USPTO granted patents. Top assignees: Pioneer Electronic Corporation, Pioneer Corporation. Active years: 1986-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinjiro Kato. Retrieved from https://idiyas.com/inventor/shinjiro-kato-nnpqe8wx

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 92.3

Average Co-Inventor Count = 4.2

ph-index = 10

Forward Citations = 354(Granted Patents)


Location History:

  • Kawagoe, JP (1992 - 1993)
  • Saitama, JP (1986 - 2007)

Company Filing History:

goldMedal12 out of 2,861 
 
Pioneer Electronic Corporation
 patents
silverMedal1 out of 2,680 
 
Pioneer Corporation
 patents

Years Active: 1986-2007

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13 patents (USPTO):Explore Patents
1. 7286676 - Audio apparatus (2007-10-23),
2. 5241605 - Tone control apparatus for front and rear channels (1993-08-31),
3. 5210806 - Digital audio signal processing apparatus (1993-05-11),
4. 5208866 - On-board vehicle automatic sound volume adjusting apparatus (1993-05-04),
5. 5119420 - Device for correcting a sound field in a narrow space (1992-06-02),
6. 5107539 - Automatic sound volume controller (1992-04-21),
7. 5081682 - On-vehicle automatic loudness control apparatus (1992-01-14),
8. 4980914 - Sound field correction system (1990-12-25),
9. 4914707 - Balanced vehicular speaker system (1990-04-03),
10. 4868878 - Sound field correction system (1989-09-19),
11. 4864246 - Mobile automatic volume control apparatus (1989-09-05),
12. 4648117 - Mobile sound field correcting device (1987-03-03),
13. 4622691 - Mobile sound field correcting device (1986-11-11),

Title: The Innovative Contributions of Shinjiro Kato

Introduction

Shinjiro Kato is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of audio technology, holding a total of 13 patents. His work focuses on enhancing audio apparatus and tone control systems, which have applications in various sound systems.

Latest Patents

One of Kato's latest patents is an audio apparatus designed to process multiple kinds of audio signals with different channel configurations. This innovative device includes a sound field control section that adjusts audio signals based on stored sound field control data. Another notable patent is a tone control apparatus specifically for front and rear channels in sound systems. This technology allows for independent tone control in both channels, preventing distortions in the front acoustic output while ensuring an appropriate balance in sound quality.

Career Highlights

Throughout his career, Shinjiro Kato has worked with leading companies in the audio industry, including Pioneer Electronic Corporation and Pioneer Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in audio technology.

Collaborations

Kato has collaborated with notable colleagues such as Fumio Tamura and Hisashi Kihara, contributing to the advancement of audio technology through teamwork and shared expertise.

Conclusion

Shinjiro Kato's contributions to audio technology through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative solutions continue to shape the future of sound 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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