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For the Inventor, By the Inventor

Kawasaki, Japan

Yasukiyo Kunimatsu

This inventor holds 10 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 2000-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasukiyo Kunimatsu. Retrieved from https://idiyas.com/inventor/yasukiyo-kunimatsu

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

USPTO Granted Patents = 10

% Patents Active = 60.0

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 35(Granted Patents)


Company Filing History:

goldMedal10 out of 39,374 
 
Fujitsu Corporation
 patents

Years Active: 2000-2007

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10 patents (USPTO):Explore Patents
1. 7173894 - ROM-RAM medium and storage device thereof (2007-02-06),
2. 6930974 - Phase compensation method and optical storage apparatus (2005-08-16),
3. 6738334 - Optical memory apparatus having a base with a unitary and integral optical component mounting portion and a precision mounting surface for mounting an optical component (2004-05-18),
4. 6704268 - Optical storage device and optical pickup unit having track control (2004-03-09),
5. 6563768 - Magneto-optical memory device (2003-05-13),
6. 6501710 - Actuator for optical pickup (2002-12-31),
7. 6411581 - Optical memory apparatus having planar printed circuit board mounted therein (2002-06-25),
8. 6388972 - Optical memory apparatus having turn table unit mounted by a plate having an integral guide portion to a supporting base (2002-05-14),
9. 6185162 - Method for adjusting magnetic and optical heads in magneto-optical recording device (2001-02-06),
10. 6141309 - Optical memory apparatus having a supporting base with an integral, (2000-10-31),

Title: Yasukiyo Kunimatsu: Innovator in Optical Storage Technology

Introduction

Yasukiyo Kunimatsu is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical storage technology, holding a total of 10 patents. His innovative work has paved the way for advancements in data storage solutions.

Latest Patents

Among his latest patents is the "ROM-RAM medium and storage device thereof." This invention features a ROM-RAM recording medium that includes a ROM portion where main information is recorded through a physical change on an optically transparent substrate. Additionally, it has a RAM portion that allows for the writing of main information at least once. The design includes a sub-code area for recording sub-information, strategically placed in both the ROM and RAM portions.

Another notable patent is the "Phase compensation method and optical storage apparatus." This method utilizes a phase plate to adjust the optical phase of a reproduced signal in a reproducing optical system. The phase plate's position is controlled within a predetermined variable range, depending on the type of optical recording medium. This ensures that the CNR of the reproduced signal is maximized, or that DC fluctuations and crosstalk levels from adjacent tracks are minimized.

Career Highlights

Yasukiyo Kunimatsu is currently employed at Fujitsu Corporation, where he continues to innovate and develop cutting-edge technologies. His work has been instrumental in enhancing the efficiency and reliability of optical storage systems.

Collaborations

Throughout his career, Kunimatsu has collaborated with notable colleagues, including Hidenori Saitou and Toshitaka Iwamoto. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Yasukiyo Kunimatsu's contributions to optical storage technology exemplify his dedication to innovation. His patents reflect a deep understanding of the complexities involved in data storage solutions. His work continues to influence the industry and inspire future advancements.

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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