This inventor holds 2 USPTO granted patents. Top assignee: Pioneer Electronic Corporation. Active years: 1976.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1976
Title: Innovations by Yoshio Maruyama
Introduction
Yoshio Maruyama is a notable inventor based in Kawagoe, Japan. He has made significant contributions to the field of tape recording technology. With a total of 2 patents, his work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is a tape transport apparatus for cassette type tape recorders. This invention features a mechanism that eliminates the slack of magnetic tape between the supply reel and take-up reel before the tape begins to transfer in the desired direction for recording or reproducing. When the tape cassette is set to 'play', the supply reel rotates backward to remove the slack, allowing the take-up reel to rotate in the rewind direction. A detection device is included to monitor the rotation of the take-up reel, which in turn controls the drive motor's direction, reversing the capstan and take-up reel's rotation as needed.
Another significant patent is a device for eliminating tape slack in a magnetic tape recording and reproducing apparatus. This invention also utilizes a tape cassette and works to remove the tape slack between the supply reel and take-up reel. When the tape cassette is in the play position, the take-up reel rotates forward to eliminate slack, followed by the supply reel starting to rotate due to the tensioned tape. A detecting device is incorporated to sense the supply reel's forward rotation, triggering a control device that engages the tape transport mechanism in the ordinary play mode.
Career Highlights
Yoshio Maruyama is currently employed at Pioneer Electronic Corporation, a leading company in the electronics industry. His work at Pioneer has allowed him to innovate and develop technologies that enhance the functionality of tape recorders.
Collaborations
Some of his notable coworkers include Yoshihiro Magata and Katsuhisa Shimizu. Their collaborative efforts have contributed to advancements in tape recording technology.
Conclusion
Yoshio Maruyama's inventions have significantly influenced the design and functionality of tape recording devices. His patents reflect a deep understanding of technology and innovation in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile