Kazuyuki Takizawa

This inventor holds 23 USPTO granted patents, primarily in Disc Recording Technology. Top assignees: Sony Corporation, Fukoku Co., Ltd.. Active years: 1978-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyuki Takizawa. Retrieved from https://idiyas.com/inventor/kazuyuki-takizawa

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

Calculating rank

USPTO Granted Patents = 23

% Patents Active = 60.9

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 208(Granted Patents)

Location History:

Inzai, JP (1978 - 1980)
Kobayashi, JP (1984)
Chiba, JP (1978 - 2011)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1978-2011

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Areas of Expertise:

Disc Recording

Reproducing Device

Disc Player

Disc Changer

Support Plate

Mounting Mechanisms

Playback Control

Phonograph

Double-Sided Disc

Ejection Control

Bias Mechanisms

Pickup Feeding

23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. RE42763 - Recording and/or reproducing device for disks (2011-09-26),

2. RE42482 - Disc support plate, disc changer mechanism, and disc recording and/or reproducing device (2011-06-20),

3. RE42041 - Recording and/or reproducing device for disks (2011-01-17),

4. 7428743 - In-vehicle player (2008-09-23),

5. 7308695 - Disk holding member, disk tray, recording and/or reproducing device, and disk changer (2007-12-11),

6. 6934959 - Disk recording and/or reproducing device (2005-08-23),

7. 6785897 - Disc support plate, disc changer mechanism, and disc recording and/or reproducing device (2004-08-31),

8. 6760283 - Disk recording and/or reproducing device with starting and ejection control means (2004-07-06),

9. 6751181 - Recording and/or reproducing device for disks (2004-06-15),

10. 6724713 - Recording and/or reproducing device for disks (2004-04-20),

11. 6683828 - Disc holding device and disc recording and/or reproducing device including disc mounting mechanisms and bias mechanisms for biasing a disc towards the mounting mechanisms (2004-01-27),

12. 6654319 - Disc recording and/or reproducing apparatus having control plates and space forming features (2003-11-25),

13. 6646974 - Disc support plate and disc recording and/or reproducing device (2003-11-11),

14. 5311497 - Pickup feeding apparatus for a double-sided reproducing disc player (1994-05-10),

15. 4773057 - Apparatus for reproducing selectively loaded discs of different diameters (1988-09-20),

Title: Innovative Contributions of Kazuyuki Takizawa in Disc Technology

Introduction: Kazuyuki Takizawa, a prominent inventor based in Chiba, Japan, has made significant contributions to the field of disc technology, holding an impressive total of 23 patents. His innovative mind has led to advancements in recording and reproducing devices, particularly for on-vehicle disc players.

Latest Patents: Takizawa's latest inventions include a sophisticated recording and/or reproducing device for disks. This invention features an on-vehicle disc player equipped with a disc elevator, designed to stack multiple trays, each containing a CD, in a vertical arrangement. The device employs plate springs to press the inserted CDs while utilizing separating cams to create spaces, allowing for efficient retrieval and reproduction of the discs. Furthermore, his patented disc support plate and disc changer mechanism incorporate a unique substrate and resin printing, enhancing durability and functionality in disc management.

Career Highlights: Takizawa's career has been marked by notable affiliations with leading companies, including Sony Corporation and Fukoku Co., Ltd. His work in these organizations has paved the way for groundbreaking advancements in disc technology, establishing him as a respected innovator in the industry.

Collaborations: Throughout his career, Takizawa has collaborated with talented coworkers such as Toru Hama and Tomohiro Watanabe. These partnerships have enabled the fusion of diverse ideas, contributing to the successful development of innovative products.

Conclusion: Kazuyuki Takizawa's remarkable achievements in the field of disc technology reflect his ingenuity and commitment to innovation. With a robust portfolio of patents and a legacy of collaboration within influential companies, he continues to pave the way for advancements in how we interact with disc-based media. His contributions serve as a testament to the power of innovation in shaping the future of 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]