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For the Inventor, By the Inventor

Tokyo, Japan

Kikuo Yoshikawa

This inventor holds 11 USPTO granted patents. Top assignee: Clarion Co. Active years: 1987-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kikuo Yoshikawa. Retrieved from https://idiyas.com/inventor/kikuo-yoshikawa

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 46(Granted Patents)


Company Filing History:

goldMedal11 out of 1,057 
 
Clarion Co
 patents

Years Active: 1987-1989

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11 patents (USPTO):Explore Patents
1. 4872075 - Tape loading mechanism in magnetic recording and reproducing apparatus (1989-10-03),
2. 4835636 - Dustproof door mechanism (1989-05-30),
3. 4828158 - Pinch roller driving mechanism (1989-05-09),
4. 4825312 - Cassette loading mechanism (1989-04-25),
5. 4797758 - Pinch roller driving mechanism (1989-01-10),
6. 4774604 - Tape looseness preventive device (1988-09-27),
7. 4764827 - Intermittent gear mechanism (1988-08-16),
8. 4745499 - Fast forward and reverse drive mechanism responsive to selected tape (1988-05-17),
9. 4708302 - Mode switching over gear mechanism for reel (1987-11-24),
10. 4691261 - Channel changing mechanism in a tape player (1987-09-01),
11. 4646174 - Magnetic tape reproducing apparatus including automatic stop mechanism (1987-02-24),

Title: The Innovations of Kikuo Yoshikawa

Introduction

Kikuo Yoshikawa, a distinguished inventor based in Tokyo, Japan, holds an impressive portfolio of 11 patents. His innovative contributions to magnetic recording and reproducing technology mark significant advancements in the field, showcasing his expertise and dedication to engineering.

Latest Patents

Among his latest inventions is a **Tape Loading Mechanism in Magnetic Recording and Reproducing Apparatus**. This mechanism features a transmission gear assembly that interacts with a drive gear from a loading motor, optimizing the loading process with loading gears strategically positioned at opposing sides of the rotary head. The design includes loading arms that facilitate the movement of loading blocks, as well as a pinch roller arm designed to enhance functionality.

Another notable patent is the **Dustproof Door Mechanism**, which is engineered to protect the internal components from dust ingress. This mechanism incorporates a pivotably supported dustproof door that is spring-biased to remain closed. The innovative design also involves a door opening cam and a door opening link that work in tandem to efficiently manage the operation of the cassette loading mechanism.

Career Highlights

Kikuo Yoshikawa is currently affiliated with Clarion Company, where he leverages his skills in developing advanced technologies for magnetic recording devices. His inventions have had a considerable impact on enhancing the reliability and efficiency of audio and video equipment.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues such as Katsumi Yamaguchi and Syouichiro Yokoi. Together, they have contributed to several innovative projects and developments within the company, fostering an environment of creativity and technological advancement.

Conclusion

In conclusion, Kikuo Yoshikawa stands out as a prominent inventor whose innovations in the realm of magnetic recording and reproducing apparatuses continue to influence the industry. With 11 patents to his name, his work exemplifies the intersection of creativity and engineering, ensuring that his contributions will leave a lasting legacy 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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