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For the Inventor, By the Inventor

Tokyo, Japan

Kimichika Yamada

This inventor holds 8 USPTO granted patents. Top assignee: Clarion Co. Active years: 1986-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kimichika Yamada. Retrieved from https://idiyas.com/inventor/kimichika-yamada

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 51(Granted Patents)


Company Filing History:

goldMedal8 out of 1,057 
 
Clarion Co
 patents

Years Active: 1986-1990

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8 patents (USPTO):Explore Patents
1. 4939602 - Cassette holder mechanism (1990-07-03),
2. 4912579 - Cassette holder mechanism (1990-03-27),
3. 4858042 - Cassette insertion detecting mechanism (1989-08-15),
4. 4855848 - Double insertion and inner lid float preventing mechanism (1989-08-08),
5. 4841392 - Tape loading apparatus having an arrangement for controlling movement of (1989-06-20),
6. 4831473 - Dust door mechanism in tape player (1989-05-16),
7. 4785362 - Driving force branching gear mechanism (1988-11-15),
8. 4631590 - Automatic camera control system (1986-12-23),

Title: Kimichika Yamada: Innovator in Cassette Holder Mechanisms

Introduction

Kimichika Yamada is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of cassette holder mechanisms, holding a total of 8 patents. His innovative designs have enhanced the functionality and reliability of tape players.

Latest Patents

Yamada's latest patents include a cassette holder mechanism that features right and left cassette holders. These holders independently support opposite side marginal portions of a cassette and have guide rollers inserted in guide holes of the chassis side walls. Each cassette holder includes a gap at its side portion that engages guide shafts attached to each chassis side wall. Another notable patent involves a cassette holder mechanism that includes an elongated hole formed in a cassette holder, which engages a pin extending from a guide arm. This design allows for limited relative movement of the cassette holder with respect to the guide arm, ensuring that the cassette is reliably set at a predetermined position in a horizontal configuration.

Career Highlights

Kimichika Yamada works at Clarion Co., where he has been instrumental in developing innovative audio solutions. His work has significantly impacted the design and functionality of cassette players, making them more user-friendly and efficient.

Collaborations

Yamada has collaborated with talented coworkers such as Hiroyuki Ohkawa and Katsuya Nozawa. Their combined expertise has led to advancements in cassette technology and improved product offerings.

Conclusion

Kimichika Yamada's contributions to cassette holder mechanisms demonstrate his innovative spirit and dedication to enhancing audio technology. His patents reflect a commitment to quality and functionality in the design of tape players.

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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