This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignees: Pioneer Corporation, Tohoku Pioneer Corporation. Active years: 2006.
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 2,680 
1 out of 294 Years Active: 2006
Title: The Innovative Mind of Tetsuo Nishikawa
Introduction
Tetsuo Nishikawa, a respected inventor from Yamaguchi, Japan, has made noteworthy contributions to the field of audio technology. With his innovative approach, he successfully secured a patent for a unique speaker device, showcasing his expertise and creativity in engineering.
Latest Patents
Nishikawa holds a patent for a speaker device that features a sophisticated magnetic circuit, which includes a magnet and yoke. The design incorporates a voice coil placed within the magnetic gap of the circuit, complemented by a diaphragm that vibrates appropriately. This diaphragm is resiliently coupled with the voice coil, with its peripheral edge firmly fixed to a housing. A damper holder is positioned where a damper is attached to the housing, and it makes point contact with the housing via three or more projections. Notably, the damper holder is crafted from a hybrid material, combining polypropylene resin and tungsten, giving it a specific gravity of 10.0 or more. This innovative design aims to enhance the performance and durability of the speaker device.
Career Highlights
Tetsuo Nishikawa's career includes significant tenures at renowned companies such as Pioneer Corporation and Tohoku Pioneer Corporation. His experiences in these leading firms allowed him to harness his skills and knowledge in audio device development, ultimately leading to his patent achievements.
Collaborations
Throughout his career, Nishikawa has collaborated with notable colleagues, including Hideaki Sugiura and Taizo Nakata. These partnerships have played a vital role in the evolution of his work and contributed to the success of various projects in the audio technology realm.
Conclusion
In summary, Tetsuo Nishikawa's inventiveness is evidenced by his patented speaker device, underscoring his significant impact in the field of audio technology. His contributions continue to influence and inspire future innovations within the industry, establishing him as a prominent figure amongst inventors and engineers alike.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile