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For the Inventor, By the Inventor

Kanagawa, Japan

Susumu Shibagaki

This inventor holds 9 USPTO granted patents and 2 EPO patents. Top assignee: Sony Corporation. Active years: 2006-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Susumu Shibagaki. Retrieved from https://idiyas.com/inventor/susumu-shibagaki

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

USPTO Granted Patents = 9


Average Co-Inventor Count = 2.6

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:

goldMedal9 out of 58,147 
 
Sony Corporation
 patents

Years Active: 2006-2010

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9 patents (USPTO):Explore Patents
1. 7647603 - Disc cartridge (2010-01-12),
2. 7287265 - Disk cartridge (2007-10-23),
3. 7278151 - Disc cartridge (2007-10-02),
4. 7243361 - Disk cartridge (2007-07-10),
5. 7237248 - Disk cartridge (2007-06-26),
6. 7210156 - Disk cartridge (2007-04-24),
7. 7159229 - Disk cartridge (2007-01-02),
8. 7151648 - Disk cartridge (2006-12-19),
9. 7103902 - Information recording medium cartridge having a pair of movable shutter members (2006-09-05),

Title: The Innovative Contributions of Susumu Shibagaki

Introduction

Susumu Shibagaki is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of technology, particularly in the development of disc cartridges. With a total of 9 patents to his name, Shibagaki's work has had a lasting impact on the industry.

Latest Patents

One of Shibagaki's latest patents involves a disc cartridge that includes a cartridge main body and a rotation wheel that is rotatably accommodated within the cartridge. This design features a pair of shutter plates that are interposed between a lower shell and the rotation wheel. These plates release a first opening of the lower shell and a second opening of the rotation wheel in association with the rotation of the wheel. The invention also includes a locking member that prohibits the rotation of the wheel, ensuring that the shutter plates close the first opening when not in use. Another patent describes a disk cartridge housing an optical disk, which also incorporates a rotation wheel and shutter plates that pivot in conjunction with the wheel's rotation. This design simplifies the unlocking mechanism of a rerecording and/or replaying device.

Career Highlights

Shibagaki is currently employed at Sony Corporation, where he continues to innovate and develop new technologies. His work has been instrumental in advancing the functionality and efficiency of disc cartridges, making them more user-friendly and reliable.

Collaborations

Throughout his career, Shibagaki has collaborated with talented individuals such as Naoki Inoue and Takatsugu Funawatari. These partnerships have fostered a creative environment that has led to the successful development of various technologies.

Conclusion

Susumu Shibagaki's contributions to the field of technology, particularly in the area of disc cartridges, highlight his innovative spirit and dedication to advancing the industry. His patents reflect a commitment to improving user experience and functionality in technology.

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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