This inventor holds 1 USPTO granted patent. Top assignees: Pioneer Electronic Corporation, Tohoku Pioneer Electronic Corporation. Active years: 1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 2,861 
1 out of 27 Years Active: 1994
Title: Shigeo Umetsu: Innovator in Recording Technology
Introduction
Shigeo Umetsu is a notable inventor from Yamagata, Japan, recognized for his contributions to recording technology. His innovative approach has led to the development of a unique apparatus that enhances the functionality of cassette tape recorders. With a focus on user-friendly design, Umetsu's inventions have made a significant impact in the audio recording industry.
Latest Patents
Umetsu holds a patent for an "Apparatus for selecting an operating mode of a recording and reproducing." This invention features a mode control ring equipped with cams that operate various devices within a cassette tape recorder. The design includes a normal pinch device and a reverse pinch device, both mounted on a base plate. Each pinch device consists of a capstan, a pinch roller on a swing lever, and an idler engaged with a reel gear. The power transmitting device effectively transmits driving power from a motor to each capstan. The selective operation of these devices is controlled by the rotatably mounted mode control ring, which has various cams and grooves that interact with cam-following members of the devices.
Career Highlights
Throughout his career, Shigeo Umetsu has worked with prominent companies in the electronics industry. He has been associated with Pioneer Electronic Corporation and Tohoku Pioneer Electronic Corporation, where he contributed to advancements in audio technology. His work has been instrumental in improving the performance and reliability of recording devices.
Collaborations
Umetsu has collaborated with several talented individuals in the field, including Masanori Shibata and Shinichi Suzuki. These partnerships have fostered innovation and creativity, leading to the development of cutting-edge technologies in audio recording.
Conclusion
Shigeo Umetsu's contributions to the field of recording technology exemplify the spirit of innovation. His patented inventions and collaborations have significantly influenced the audio industry, making him a respected figure among inventors. His work continues to inspire future advancements in technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile