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For the Inventor, By the Inventor

Kanagawa, Japan

Ryuzo Tamayama

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignee: Sony Corporation. Active years: 1993-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuzo Tamayama. Retrieved from https://idiyas.com/inventor/ryuzo-tamayama

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

USPTO Granted Patents = 6 

% Patents Active = 66.7

Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 52(Granted Patents)


Company Filing History:

goldMedal6 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1993-2006

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6 patents (USPTO):Explore Patents
1. 7146018 - Multichannel acoustic signal reproducing apparatus (2006-12-05),
2. 6650609 - Disk device (2003-11-18),
3. 6603724 - Disk recording and/or reproducing device, disk loading mechanism, and disk eject mechanism (2003-08-05),
4. 6426932 - Disk device (2002-07-30),
5. 6246654 - Disk device (2001-06-12),
6. 5179485 - Optical encoder for disc apparatus (1993-01-12),

Title: The Innovations of Ryuzo Tamayama

Introduction

Ryuzo Tamayama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of acoustic signal reproduction and disk devices. With a total of 6 patents to his name, Tamayama's work has had a lasting impact on audio technology.

Latest Patents

One of his latest patents is the "Multichannel Acoustic Signal Reproducing Apparatus." This innovative system is designed to reproduce surround phonic sound through a multichannel acoustic signal reproducing apparatus that includes a DVD reproducing section. The system integrates a DVD, CD, radio, and speakers, making it a movable unit. It connects to a television receiver via an IEEE1394 or USB interface, utilizing the television's speakers as main speakers while the apparatus's speakers serve as sub-speakers. The main speakers can be controlled from the main body of the apparatus.

Another significant patent is the "Disk Device," which aims to minimize the intake of dirt and dust into the disk device body. This invention features an intake port located on the front panel along the lower edge of the tray entrance/exit opening. The design includes an intake passage that connects the intake port to a discharge port, effectively reducing contamination from open air.

Career Highlights

Ryuzo Tamayama is currently employed at Sony Corporation, where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the user experience in audio and video playback systems.

Collaborations

Throughout his career, Tamayama has collaborated with notable colleagues such as Kiyoshi Omori and Koichi Numata. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Ryuzo Tamayama's contributions to the fields of acoustic signal reproduction and disk devices highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving audio experiences for users worldwide.

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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