Kazumi Fujimoto

This inventor holds 13 USPTO granted patents. Top assignees: Sony Corporation, Sony Corpotation. Active years: 1977-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumi Fujimoto. Retrieved from https://idiyas.com/inventor/kazumi-fujimoto

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 9

Forward Citations = 207(Granted Patents)

Location History:

Tokyo, JA (1977)
Hoya, JA (1977 - 1978)
Tokyo, JP (1986)
Hino, JP (1978 - 1987)

Company Filing History:

Years Active: 1977-1987

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D291434 - Reel hub for cassette tape (1987-08-18),

2. D291304 - Reel hub for cassette tape (1987-08-11),

3. D283893 - Floppy disc (1986-05-20),

4. 4581669 - Flexible magnetic disk cassette and a recording and/or reproducing (1986-04-08),

5. 4517617 - Flexible magnetic disk cassette and a recording and/or reproducing (1985-05-14),

6. D272322 - Packing box (1984-01-24),

7. D271298 - Floppydisk (1983-11-08),

8. D255874 - Packing box (1980-07-15),

9. 4125189 - Tape cassette case (1978-11-14),

10. 4067629 - Storage receptacle for magnetic tape cassette (1978-01-10),

11. 4055372 - Storage receptacle for magnetic tape cassette (1977-10-25),

12. 4054344 - Storage receptacle for magnetic tape cassette (1977-10-18),

13. 4026615 - Container for magnetic tape cassette (1977-05-31),

Title: Inventor Kazumi Fujimoto

Introduction

Kazumi Fujimoto, an esteemed inventor based in Hoya, Japan, is known for his significant contributions to the field of technology, particularly in audio equipment. With a total of 13 patents to his name, he has played a crucial role in enhancing the performance and functionality of cassette tapes through innovative design and engineering.

Latest Patents

Fujimoto's latest innovation is the development of a reel hub specifically designed for cassette tapes. This advancement reflects his deep understanding of audio technology and his commitment to improving user experience. The reel hub is a critical component that facilitates the efficient operation of cassette players, ensuring high-quality sound reproduction.

Career Highlights

Throughout his career, Kazumi Fujimoto has been associated with major corporations such as Sony Corporation. His work in these industry-leading companies has allowed him to develop groundbreaking technologies, contributing to the evolution of consumer electronics. His extensive experience has established him as a respected figure in the field of invention.

Collaborations

Fujimoto has had the privilege of collaborating with talented professionals, including noteworthy coworkers like Kishio Ikeda and Akira Tsuji. These collaborations have fostered an environment of creativity and innovation, leading to the successful development of various projects and patented technologies.

Conclusion

In summary, Kazumi Fujimoto's innovative spirit and dedication to the field of audio technology have greatly influenced the industry. His contributions, particularly through his latest patent for a reel hub for cassette tapes, and his collaborations with other talented inventors, underscore his importance as a leading inventor in modern 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]