This inventor holds 2 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Pioneer Corporation, Tohoku Pioneer Corporation. Active years: 2016-2019.
Location History:
- Tendo, JP (2016)
- Yamagata, JP (2019)
Company Filing History:

Years Active: 2016-2019
Title: Innovator Yasumi Umetsu: Pioneering Speaker Technology in Japan
Introduction
Yasumi Umetsu, an inventive mind based in Yamagata, Japan, has made significant contributions to the field of acoustic technology. With an impressive portfolio that includes two patents, Umetsu has developed innovative speaker systems aimed at enhancing mobile audio experiences.
Latest Patents
Umetsu's notable inventions include a "Speaker System for Mobile Object" and a "Speaker Device." The first patent describes a speaker system designed for easy mounting on mobile objects. This system is composed of a speaker unit and an enclosure that houses the unit, with a unique tubular member connecting the enclosure to the vehicle’s internal space. This design efficiency allows for optimal utilization of available space in vehicles, making installation straightforward.
The second patent for the "Speaker Device" features a sophisticated diaphragm and a frame that supports the diaphragm's vibrational movement. This device integrates a driving part that utilizes a magnetic circuit with a magnetic gap. The design cleverly includes a vibration-direction-conversion part that transmits vibration to the diaphragm effectively, enhancing audio quality and performance.
Career Highlights
Umetsu's career includes pivotal roles in renowned companies such as Pioneer Corporation and Tohoku Pioneer Corporation. His experience in these organizations has undoubtedly played a crucial role in shaping his innovative capabilities and contributions to speaker technology.
Collaborations
Throughout his career, Umetsu has collaborated with talented individuals like Takayuki Negishi and Toru Nakamura. Working alongside such esteemed coworkers has likely fostered an environment of creativity and innovation, furthering advancements in audio technology.
Conclusion
Yasumi Umetsu stands out as a forward-thinking inventor in the realm of acoustic systems. His patents reflect a commitment to improving auditory experiences, particularly in mobile applications. With continued collaboration and innovative thinking, Umetsu's contributions are expected to influence the future of audio technology significantly.